Hands-on equations lesson 10

Answers

Answer 1

Answer:

Step-by-step explanation:uhHoAnd ghiorioghiltihlgitrghile


Related Questions

why is green anaconda a threat we should care about?

Answers

Answer:

It's dangerous

Step-by-step explanation:

Anacondas are formidable predators, king of the food chain in their native South American ecosystems. While contact with mankind and domestic animals is rare, these large, heavy-bodied constrictors pose a potential threat to anything that crosses their path. Other dangers are also associated with these large snakes.

What is the GCF of 2×3³×5² and 2³×3×5²

Answers

the answer is 150 hope this helps

if x+y=7 and xy=10 find x2+y2+5xy

Answers

Answer:

64

Step-by-step explanation:

x+y = 7

xy = 10

2x+2y+5xy = 2(x+y)+5(xy) = 2*7+5*10 = 14 + 50 = 64

Akram is p years old. Shazwan is
7 years older than Akram. Their
total age is 31 years. Write a linear equation to represent their
total age.

Answers

answer

Ang sagot po 38 diyan

Johnny bought a Blu-Ray Disc recorder for $280. Now, it's on sale for $220. Find the percent of change in the price. Round to the nearest whole percent if necessary.

Answers

Answer -21.43

Step-by-step explanation:

-21.43

Step-by-step explanation:

cost price :$280

selling price:$220

%profit =sp-cp/cp ×100

%loss=cp-sp/cp×100

%loss=280-220/280 ×100

=60/280 ×100

=21.4285

=21

How can you tell if an equation (for example, x=16+3y (don’t solve this)) will be represented by a straight line when graphed on a coordinate plane? Is there an easy way to tell or how do you figure that out?

Answers

Answer:

I know it is a straight line because I can convert it into standard or slope intercept form.  An example of when something isn't a straight line is like y=|x|.

x=16+3y

-3y=-x+16

y=1/3x-16/3

An equation where y = whatever and the ALL the variables are to the power of 1, like yours, then the line will be straight.

If the variable looks like x^2 or something, then it will not be a straight line.

The new dolphin tank at the city aquarium is in the shape of a rectangular prism. It is long by wide by deep. To make the tank livable for the dolphins, the aquarium workers treat the water using bags of salt. The amount of water a bag of salt can treat is known in cubic feet.
(a) Find the volume of water in the tank in cubic feet.

(b) To make the tank livable for the dolphins, a bag of salt must be added for each 19.4ft$ of water. The aquarium doesn't have any salt on hand and the salt can only be purchased in whole bags. How many bags of salt must be purchased to treat the water?
(c) If each bag of salt costs $4.85, how much must the aquarium pay for salt to treat all the water in the new dolphin tank?
answer quickly

Answers

The volume of water in the tank is 35,100 cubic feet.

What is the volume of the rectangular prism?

Volume = length × width × height

We have the following parameters based on the information provided;

Length = 20 meters

Width = 13 meters

Height = 5 meters

Substitute the values into the formula to get

Volume = 20 × 13 × 5

Volume = 1300 cubic meters

Convert the cubic yard into cubic feet

1 cubic yard = 27 cubic foot

⇒ 1300 yards = x

⇒ x = 27 × 1300

⇒ x = 35,100 cubic feet

Therefore, the amount of water a bag of salt can treat is 35,100 cubic feet

To learn more about the volume here:

brainly.com/question/28574486

#SPJ1

The question seems to be incomplete the correct question would be

The new dolphin tank at the city aquarium is in the shape of a rectangular prism. It is 20 yds long by 13 yds wide 5yds by deep. To make the tank livable for the dolphins, the aquarium workers treat the water using bags of salt. The amount of water a bag of salt can treat is known in cubic feet.

Find the volume of water in the tank in cubic feet.

1. A package of sliced cheese costs 2.97 dollars, Their are 11 slices in each pack.
Question: how much would a package with 18 slices cost at the same price per slice? Explain or Show ur reasoning

Answers

Answer:

4.86 pack of 18

Step-by-step explanation:

If we consider adding a price to each slice from the 11 slice package. The price to each slice would be .27 cents. Now if we add 7 slices, each .27 cents each. The total price for the 18 package of sliced cheese would be 4.86

Crosby had $300 in his checking
account. Over one week, he
withdrew $50, wrote a check for
$20, and deposited $60. What was
his account balance at the end of
the week?

Answers

Answer:

390

Step-by-step explanation:

so 50-20 = 30 30+60= 90

90+300 = 390

Answer:

$290

Step-by-step explanation:

300-50= 250

250-20=230

230+60=290

HELP HELP HELP !!!
Which equation shows that the product of a square matrix A and its identity matrix I is A?

Answers

Answer:

Option B

Step-by-step explanation:

The multiplication process of matrices works by multiplying the first row of the  first matrix by the first column of the second matrix. The same goes with the second row of the first matrix by the second column of the other matrix. Below is the solution why option B is the correct answer.

[tex]A = \left[\begin{array}{ccc}8&11\\13&5\\\end{array}\right][/tex]              

[tex]B = \left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right][/tex]  ← This is the Identity Matrix.

The attached screenshot shows the solution of the multiplication process. In essence, if you multiply any matrix by the identity (Matrix B), you should end up with your original matrix. Thus, multiplying Matrix A by the Identity matrix results in the same values as Matrix A.                                              

Therefore, the correct answer is B.                                    

A map of Pennsylvania has a scale of ¾ inch to 25 miles. If Pittsburgh and Philadelphia are 9 inches apart on the map, how many miles apart are the two cities? Please help due today
Explanation please

Answers

Answer:

225 miles

Step-by-step explanation:

0.75 inches : 25 miles

we can times 0.75 by 12 to get 9, so we have to times the other side by 12 too.

9 inches : 300

A package of 6 pairs of insulated gloves costs $38.94. What is the unit price of the pairs of gloves? The unit price is $ per pair of gloves.​

Answers

Answer:

6.49

Step-by-step explanation:

6 pairs of insulated gloves cost $38.94

That means 6 x (price of one glove) = 38.94

Let's say the price of on glove = x

The equation is :

6x = 38.94

x = 38.94 ÷ 6                                   (divide all sides by 6)  

x = 6 + (2.94 ÷ 6)                             (Splitting numbers to multiples of 6)

x = 6 + 0.4 + ( 0.54 ÷ 6)                  (Splitting numbers to multiples of 6)

x = 6 + 0.4 + 0.09                           (Adding all sums)

x = 6.49

Each pair of gloves cost 6.49

-Chetan K

Answer:

6.49

Step-by-step explanation:

Practice 1-2: Unit Rates (Level: Middle School)

Here, given the cost of 6 pairs pf gloves = $38.94

Now, the unit price = Price per unit of the given item

U =

[tex]\frac{38.94}{6} =6.49[/tex]

i need to know the answer to simplify 5/6

Answers

Answer: It's already in it's simplest form.

What is the equation in slope-intercept form of a line with
slope -5/4 and y-intercept 2?

Answers

use y = mx + b
so
y = -5/4x + 2

good luck!!

(3, r) and (7, 2) m = 1

Answers

Answer:

r = -2

Step-by-step explanation:

2+2 = 4

7-3 = 4

4/4 = 1

m = 1

You need a mean score of at least 90 points to get an ""A"" average. What do you need to score on your fifth test to earn at least a 90?

Answers

Answer:

85

Step-by-step explanation:

at least a 85 %bcz it's go bring you higher

Find the slope of the line that passes through (-53, -2) and (-54, 91).

Answers

Answer:

x1=-53 y1=-2

x2=-54. y2=91

slopes= y2-y1

---------

x2-x1

91-(-2)

-----------------

= -54-(-53)

91+2

= ----------

-54+53

= 93

-------

-1

what is the value of -4.5 degrees ​

Answers

Answer:30

Step-by-step explanation:

Find the value of cos 45° + sin 30° Solution: Given, cos 45° + sin 30° cos 45° + sin

30° = 1/√2 + ½ = (√2+1)/2 Question 2: Evaluate: 2 sin 60° – 4 cos 45° Solution: Given, 2 sin 60° – 4 cos 45° Since, sin 60° = √3/2 and cos 45° = 1/√2

Therefore, ⇒ 2 (√3/2) – 4 (1/√2) ⇒ √3 – 2√2 Question 3: Find Cos 45 + Cos 90. Solution: Cos 45° = 1/√2 Cos 90° = 0 Therefore, Cos 45° + cos 90° = 1/√2

Which of the following is a true statement?
a. The sum of two irrational numbers is always an irrational number.
b. The product of two irrational numbers is an irrational number.
c. Every real number is always rational.
d. Every real number is either rational or irrational.

Answers

Answer:

the sum of two irrational number is always an irrationa number

Write the equation of the line that has a slope of 4/5 and a y-intercept of -8.

Answers

The equation of any staright line can be written as y = mx + c , where m is its slope and c is its y - intercept . hence, equation of line with slope = 4/5 and y - intercept = -8 is,

y = 4/5x - 8

m - c = 4/5 + 8 = 12/5

hope this answer helps you dear take care!


Which of the following is a measure of spread?

1.Range
2.Mean
3.Median
4.Mode
5.All of the above: Mean, Median, Mode, and Range
6.Mean, Median, and Mode only

Answers

Answer: 1. range

Step-by-step explanation: range is the spread of values from lowest to highest in which you will find all the values.

Find the difference (10j – 7)-(-9j + 2)

Answers

Answer:

Step-by-step explanation:

(10j – 7)-(-9j + 2)

10j-7+9j-2

19j-9

Mario and 3 friends equally shared the burritos shown.



Problem

Read aloude How many burritos did each person get?

A

1 2
3

B

1 1
6

C

1 1
4

D

1 1
2

Answers

Answer:

c

Step-by-step explanation:

it would be c. because there are 4 friends and there and 5 burritos so each one gets 1 and the last one slips to 4 pieces.

Answer:

each one had 3 so C is the answer

4. Which of the following is correctly written in Standard Form?

Answers

I think its A, the equation for it is Ax+By=C
B) y=6/5x+4

Reason:
The standard form for equations is usually y=mx+c


Please mark as a brainliest (crown) above my comment. Would be much appreciated

For any linear function f(x) = mx + b, when does kf(x) = f(kx)?

Answers

Only when b = 0 or k = 1.

If f(x) = mx + b, then

f (kx) = m (kx) + b = mkx + b

while

k f(x) = k (mx + b) = kmx + kb

The two expression are identical only if

kb = b   ===>   kb - b = 0   ===>   b (k - 1) = 0   ===>   b = 0 or k = 1

An object is thrown upwards with a speed of 20 m/s. After t seconds, its height can be solved using the formula h = 20t - 4.9t2 where h is the height and t is the time. After how many seconds is the object 19.6 meters high?

Answers

Step-by-step explanation:

h= 20t - 4.9t^2

when h=19.6m

19.6=20t - 4.9t^2

4.9t^2 -20t+19.6=0

solving quadratically

t= 1.64 seconds or t= 2.45 seconds

216 divied by blank to the third power

Answers

Answer:

6

Step-by-step explanation:

3√216 = 6

or

6 *6 is 36

36 * 6 is 216

Hope this helps!

10x÷8=18
plz helppppppppppppppppppppppppppppppppppp

Answers

Hey there!

10x ÷ 8 = 18

MULTIPLY 8 to BOTH SIDES

10x ÷ 8 * 8 = 18 * 8

SIMPLIFY IT

NEW EQUATION: 10x = 144

DIVIDE 10 to BOTH SIDES

10x/10 = 144/10

CANCEL out: 10/10 because it gives you 1

KEEP: 144/10 because it helps simplify for the x-value

x = 144/10

x = 144 ÷ 2/10 ÷ 2

x = 72/5

Therefore, your answer is: x = 72/5

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

What does the expression you wrote in part d mean?

Answers

Answer:

you give us no context

Answer:

The expression means that if Harold has one pack of red sticks and one pack of blue sticks, he could distribute them equally among 4 people without having any sticks of either color leftover.

Step-by-step explanation:

I will give brainliest and extra points plz


[tex]\frac{4}{\sqrt{5}+3}[/tex]

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The value of given expression is :

[tex]3 - \sqrt{5} [/tex]

Solution is in attachment ~

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