2(z+5) +5(z+ 2) = 10(z − 1)

Answers

Answer 1

Answer:

z = 10

Step-by-step explanation:

First apply multiplication to inside the parenthesis:

2(z+5) = 2z + 10

5(z+ 2) = 5z + 10

10(z − 1) = 10z - 10 now write the full equation

2z + 10 + 5z + 10 = 10z - 10 add like terms

7z + 20 = 10z - 10 transfer like terms to the same side of the equation

20 + 10 = 10z - 7z

30 = 3z divide both sides by 3

10 = z


Related Questions

Which of the following best describes /JKL?
32°
L
K

Answers

The best statement that describes the angle JKL is inscribed angle.

What is an inscribed angle?

An inscribed angle in a circle is formed by two chords that have a common end point on the circle. The chord JK and LK intersect in the circle.

The angle ∠JKL is not an obtuse angle because it's less than 90 degrees.

The angle ∠JKL is not a vertical angle because it's not vertically opposite  any angle.

The angle ∠JKL is not a central angle because it was not from from the centre of the circle.

The angle is an inscribed angle because it was formed by the intersection of two chords in the circle.

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You paid $16.50 for a prescription plus $1.32 in sales tax. What is the sales tax rate?

Answers

Answer:

16.50+1.32 u happy its so easy

Answer 8% tax rate
1.32 tax divided by cost of prescription 16.50
Equals .08 or 8%

Georgia drove 156 miles in 4 hours. If this rate continue, how many miles can he drive in 7 hours

Answers

The answer is 273 ……….

Answer: he drives 273 miles for 7 hours

Step-by-step explanation:

The table below shows the estimated population of fish living in the local lake as determined by the local
environment council every 10 years between 1960 and 1990.
The equation y = 1500(.9) describes the curve of best fit for the fish population (y). Let z represent the
number of 10-year intervals since 1960.
Year Population
1960
1500
1970
1350
1980 1210
1990 1100
Using this equation, what is the approximate predicted population of fish living in the lake in the year 2020?
A) 980
B) 800
C) 770
D) 720

Answers

The approximate predicted population of fish living in the lake in the year 2020 is; B: 800

How to Calculate Estimate population from a Table?

We are told that the equation that describes the curve of best fit for the fish population (y) is;

y = 1500(0.9)^(z)

where z represent the

number of 10-year intervals since 1960.

The table started in the year 1960 and we want to find the population in the year 2020.
Number of years after 2020 is;

2020 - 1960 = 60 years

60 years is 6 decades

Thus;

y = 1500(0.9)⁶ = 797 ≈ 800

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PLS HELP NEED THIS ASAP

Answers

The probability that the dog that's selected will weigh less than 30 pounds will be 55%.

How to calculate probability?

From the information given, it was stated that 45% of the dogs weigh more than 30 pounds. Therefore, the probability that the dog that's selected will weigh less than 30 pounds will be:

= 1 - 45%

= 55%

The probability that it weighs more than 30 pound given that it has long fur will be 27%.

The events are independent since the occurence of one doesn't affect the other one.

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7x + 2y = −12
3x + 4y = −24

Answers

Answer:

x= 0 , y= 6

Step-by-step explanation:

multiplying 1st equation by 2 and subracting equation 2nd from 1st

14x + 4y = -24

- ( 3x + 4y) = - (-24)

11x = 0

so, x=0

keep x=0 in equation 2nd

3*0 + 4y = -24

y = -24 / 4

so , y = 6

75 points! what’s the lateral area, total surface area, and volume of this? please help me!

Answers

Answer:

yes of course it exists until to you practice a little bit hard. so let's. try

Brian flips a fair coin 3 times
What is the probability of him getting exactly 2 tails?​

Answers

Answer:

[tex]\frac{3}{8}[/tex]

Step-by-step explanation:

There are a list of possible outcomes:

TTT  (1)TTH   (2)THT  (3) THH  (4)HHH   (5)HHT  (6)HTH   (7)HTT   (8)

This represents 8 outcomes.

The only ones that have two tails are:

TTH   (1) THT  (2) HTT (3)

Because there are 3, this means that the probability in a fraction form of Brian getting exactly 2 tails is 3/8. P ( exactly 2 tails) = 3/8.

may i have help with this

Answers

Answer: D. 7^11

Step-by-step explanation:

For exponents with the same base, we just add the exponents and keep the same base. 7 is the same base; therefore 5+6=11 which means the answer is 7^11

In a class of 75 students, 50 like visiting and 50 like Picnic. If each student like at least one activity, using Venn diagram, find the number of students who like both.

please help me with this question. ​

Answers

If each student like at least one activity, the number of student that like both is 25

How to solve Venn diagram?

The class have 75 students.

50 like visiting and 50 like picnic.

Therefore, if each student like at least one activity, the number of student that like both can be calculated as follows;

let

x = student that like both

75 = 50 + 50 - x

Therefore,

75 = 100 - x

75 - 100 = -x

-25 = -x

x = 25

Therefore, the number of students who like both are 25.

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13 - r < 82




PLA I NEED THIS

Answers

Answer:

r > -69

Step-by-step explanation:

13 - r < 82

subtract 13 from both sides

13 - r - 13 < 82 - 13

- r < 69

to flip the inequality sign, multiply both side by -1 to make r positive:

- r (-1) < 69 (-1)

r > -69

        [tex]\rule{50}{1}\large\textsf{\textbf{\underline{Question:-}}}\rule{50}{1}[/tex]

    13-r<82

      [tex]\rule{50}{1}\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}\rule{50}{1}[/tex]

   First of all, we need to isolate r (get r by itself). What I Mean by that is

       We need to get r by itself on one side of the inequality.

      So it should look something like this:-

     r<___

So r is all by itself.

How will we get r by itself? Well, First of all, we need to subtract 13 on both sides:-

[tex]\longmapsto\bf{-r < 82-13[/tex]

Simplifying,

[tex]\longmapsto\bf{-r < 69}[/tex]

Now, is r by itself? Nopes, There's also a minus sign next to it , which indicates that r is multiplied by -1.

So we do the opposite operation and divide both sides by -1:-

(watch what happens)

[tex]\longmapsto\bf{r > -69}[/tex]

The inequality sign changed from "less than" to "greater than".

This happened because we divided by a negative number on both sides.

Good luck with your studies. [tex]\ddot\smile[/tex]

#TogetherWeGoFar

[tex]\rule{300}{1}[/tex]

The average cost of tuition plus room and board for a small private liberal arts college is reported to be $9,500 per term, but a financial administrator believes that the average cost is higher. a study conducted using 350 small liberal arts colleges showed that the average cost per term is $9,845. the population standard deviation is $1,200. let α = 0.05. what is the p-value for this test?

Answers

i think the answer would be p= 123

Find the measure of

Answers

Answer:

r = 76°

Step-by-step explanation:

61° + 43° + r = 180° { <'s on a straight line are supplementary}

104+r=180

r = 180-104

r = 76°

76, 180- the other angles is 76

please help with math

Answers

6: x+3 = 11x4 x+3 = 44 x =44 x =44-3 answer x=41

A graph titled Fast Freddy has time (minutes) on the x-axis and Distance (miles) on the y-axis. A line goes through points (0, 0) and (4, 1). A 2-column table with 3 rows titled Speed Sam. Column 1 is labeled Time (minutes) x with entries 4, 20, 32. Column 2 is labeled Distance (miles) y with entries one-half, 2 and one-half, 4.
Find the slope from the graph and from the table to compare the speeds of two marathon runners.

What is the constant speed of Fast Freddy?

1/4
What is the constant speed of Speedy Sam?

Who ran faster?

Answers

The constant speed of Fast Freddy is 0.25 miles per minute and the constant speed of Speedy Sam is 0.125 miles per minute

The complete question

The question is incomplete as the graphs and the tables are missing.

However, the points given in the question can be used to represent the graph and the table

The slopes of the graph and the table?

By interpreting the points, we have:

Graph

(x, y) = (0, 0) and (4, 1)

Table

x           y

4           0.5

20         2.5

32         4

The slope is calculated using:

[tex]m = \frac{y_2 -y_1}{x_2 -x_1}[/tex]

So, we have:

Graph: [tex]m = \frac{1 -0}{4 -0} = 0.25[/tex]

Table: [tex]m = \frac{4 -2.5}{32 -20} = 0.125[/tex]

Their constant speeds

Freddy's speed is represented by the graph, while Sam's speed is represented by the table

Hence, the constant speed of Fast Freddy is 0.25 miles per minute and the constant speed of Speedy Sam is 0.125 miles per minute

Who ran faster?

Freddy ran faster because 0.25 is greater than 0.125

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Answer:

1. Freddy ran a speed of 1/4 miles

2. Sam ran a speed of 1/8 miles

3. Freddy ran faster

Step-by-step explanation:

Your welcome :)

flash is the best show to ever exist

Need help with the question

Answers

Answer:

y = 3

Step-by-step explanation:

given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

to find k use the condition y = 57 when x = 19 , then

57 = 19k ( divide both sides by 19 )

3 = k

y = 3x ← equation of variation

when x = 1 , then

y = 3 × 1 = 3

An elevator began in the 9th floor. It went down 7 floors. Then, it went up 4 floors. On which floor did it stop?

Answers

The answer is floor number 6

Answer: Hope this helps you!

6th floor

Step-by-step explanation:

If it starts on the 9th floor and goes down 7 floors that is:

9 (9 floors) + -7 (down 7 floors)

which is also equal to 9-7

9-7 = 2

Next, we need to go up by 4 floors starting with 2, 2+4

2+4 = 6

Brainliest?

A store manager wanted to see the relationship between
the number of computers sold, x, and store profit, y, on a
daily basis. The regression line is û = -150 +24x, where
x is the number of computers sold for the day.
What is the predicted store profit if 0 computers are
sold for the day?
O-$150
O-$126
$0
O $176

Answers

The predicted store profit if 0 computers are sold for the day is $-150.

What is the predicted store profit?

Profit is the total selling price less the cost price of an item.

Profit = selling price - cost price

Given the regression line, û = -150 +24x, substitute for x

û = -150 +24(0)

û = -150

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Answer:

The answer above is correct -150 is correct

Step-by-step explanation:

EDG2022

1. The area of a rectangular carpet is X² + X - 2. HINT: Area = length X breadth

a). if X is a whole number, use factorization to find the length and the breadth of the carpet in terms of X.

b). if X = 2 m, find the actual dimensions of the carpet.

c). it costs R50 per square metre to make such this carpet. how much will it cost to manufacture 5 carpets?​​​

Answers

Answer:

a) Length= (x+2) and breadth=(x-1) b) 4 m^2 c) R1000

Answer:

answers in photo / +explanation

Step-by-step explanation:

a)

length: x+2

width/breadth: x-1

b)

length: 4m

width/breadth: 1m

area: 4m²

c)

R1000

An adult African elephant weighs approximately 8 tons. Which comparison is true

Answers

need more info to answer ?


how do u turn decimals into fractions

Answers

Answer:

place the decimal number over its place value

Step-by-step explanation:

For example in 0.4 the four is in the tenths place, so we place 4 over 10 like 4/10

Answer:

Step-by-step explanation:

Decimal to fraction: Write the decimal number with denominator 1Now , multiply the numerator and the denominator by 10 for every number after the decimal point.Simplify

Example:

   4.52

[tex]4.52 =\dfrac{4.52}{1}[/tex]

In 4.52, there are two decimal places. So multiply the numerator and denominator by 100

[tex]\dfrac{4.52*100}{1*100}=\dfrac{452}{100}=\dfrac{452 \div 4}{100 \div 4}=\dfrac{113}{25}[/tex]

Which of the following best describes the graph below A.it is a one to one function B. It is not a function C.it is a many to one function D.It is a function,but it is not one to one

Answers

The graph is a one to one function , Option A is the correct answer.

What is a function ?

A function is defined as the algebraic expression that identifies relation between a dependent and an independent variable.

All the function have a defined domain and Range.

To test that the given graph is a function ,

A vertical line test will be done , A vertical is passes through different points of the graph and for every unique value of x , we get a single solution of y , therefore it is a function

Then  horizontal Line test is done to determine if it is a one to one function, for every y value there is only one x value.

The graph passes the horizontal line test.

Therefore The graph is a one to one function , Option A is the correct answer.

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Someone pleaseeeee helpp meeeeee!!!!

Answers

Answer:

The slope is 0.

Step-by-step explanation:

x is the gradient of the line, so multiplying the slope, zero, by the gradient, x, would make this equal to zero.

What is the scale factor for XYZ TO UVW?

Answers

Answer:

D. 2

Step-by-step explanation:

If you multiply any side from XYZ by 2 it will equal the same length of one of the sides of UVW.

Marcella bought a 300 pack of candied chocolates. she randomly picked out 30 candies. the results
were 8 green, 11 blue, 6 yellow, and 5 brown. how many of each color do you think is in the bag

Answers

Answer:

there are 75 colors of each candy

Step-by-step explanation:

300÷4=75

Howard sells used helicopters, and he receives a 3% commission on all that he sells. If Howard received $42,000 in commissions last year, how many dollars worth of used helicopters did he Sell?

Answers

The worth of helicopter sold is $1,400,000

How to determine the total sales?

The given parameters are:

Commission = 3% of salesCommission = $42,000

This means that:

3% of sales = $42,000

Divide both sides by 3%

Sales = $1,400,000

Hence, the worth of helicopter sold is $1,400,000

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The area of a newspaper page (opened up) is about 640.98 square inches. Determine the length and width of the page if its length is about 1.25 times its width.
The width of the page is ___ inches.

Answers

.✎let's answer it :3

question

The area of a newspaper page (opened up) is about 640.98 square inches. Determine the length and width of the page if its length is about 1.25 times its width.

The area of a newspaper page (opened up) is about 640.98 square inches. Determine the length and width of the page if its length is about 1.25 times its width.The width of the page is ___ inches.

answer 1.24 inches

hope it helps

correct me if I am wrong

by #galadohannadivine29

what is the solution to the equation 1/5n=3


a n=8
b n=15
c n=25
d n=125

Answers

Answer:

[tex]\huge\boxed{\sf n = 15}[/tex]

Step-by-step explanation:

Given Equation:

[tex]\displaystyle \frac{1}{5} n = 3\\\\Multiply \ 5 \ to \ both \ sides\\\\n = 3 \times 5\\\\n = 15\\\\\rule[225]{225}{2}[/tex]

help please and only answer if ur sure x

Answers

Answer:

9/10

Step-by-step explanation:

First you would have to make the denominators the same, and they have an lcd of 10. So multiply 2/5 by 2 which is 4/10

and then 1/2 by 5 to get 5/10

then add 4/10 and 5/10 together and you get 9/10

If [2a -1] [-3-a]= (10), find the value of a.​

Answers

Step-by-step explanation:

Step-by-step explanation:-6a-2a^2+3+a=10-7a-2a^2=10-32a^2+7a+7=0
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30 In right triangle PRT, m/P = 90, altitude PQ is drawn to hypotenuse RT. RT = 17, andPR = 15.Determine and state, to the nearest tenth, the length of RQ 30 divided by 5 - 2 + 7 = 3 Then , write down the correct equation. Taking control of admin functionality and misusing sensitive data that are unauthorized to access are due to. AB=(xy)What values shouldxandytake?AB=(xy)What values shouldxandytake?Note: Each horizontal or vertical division represents one unit.X=Y= We generally move the globe in which direction 2.Enumerate the five requirements for Environmental safety and health program. a.b.c.d.e. Which quote best establishes the speaker's character?"Mom," said Mary sincerely, "I didn't mean to hurt you.""I don't know why he's always late.""Larry, her dog, always barks.""She told me she was sorry." 3 quick questions 28 points This technique allowed multiple peoples DNA to be compared to look for similarities and differences in order to solve crimeDNA EliminationDNA ExaminationDNA FingerprintingDNA Sequencing Welfare systems, pensions, and unemployment programs are examples of __________ programs that commonly help citizens in developed countries. a. social protection b. industrialization c. education d. infrastructure. describe how the surface of the earth moves, the way it moves and the effects of movement bilang isang mag aaral paano mo na ikaw ay maaasahan ng bayan? Correlation research differs from experimental research by focusing on how variables ______. a. are manipulated b. compare to normative groups c. are analyzed d. are associated could someone please answer this will give brainliest The midpoint of AB given A (3, -12) and B (-1, -2) is (x, y). What are thevalues of x and y? A square has a perimeter of 36x - 12. Which expression represents one side of thesquare? A car travels 263.0 miles in 5.5 hours. How long will it take to travel 363.0 miles atthis average velocity? (Answer to 1 decimal place) Do you think scientists could use the students' device on a larger scale to effectively clean up oil spills? Explain your answer. Read the sentence. The young soldier had been stationed overseas for two years. When it was time to come home, he decided to surprise his mom. It was a poignant moment when the soldier reunited with his mom.What is the meaning of poignant?touchingrelaxingpitifullonelyGiving brainliest! Which of the following is a characteristic of a scientific theory? aIt explains how nature works. bIt is based on a single experiment. cIt should not be possible to replicate its results. dIt should not be possible to replicate its observations.