Mathematics High School

I know the answer to a but the answer to b I can’t do
I don’t know why

I Know The Answer To A But The Answer To B I Cant Do I Dont Know Why

Answers

Answer 1

Answer:

x=4

Step-by-step explanation:

I used cross multiplication

7+2x/3=5

7+2x/3=5/1

7+2x(1)=5(3)

7+2x=15

2x=15-7

2x=8

x=4

Answer 2

Answer:

x = 4

Step-by-step explanation:

The goal is to get x by itself.

1. Multiply both sides by 3 and you are left with:

7 + 2x = 15

2. Subtract 7 from both sides and you are left with:

2x = 8

3. Simplify by dividing each side by 2 and you are left with the answer:

x = 4

Related Questions

on the beach boardwalk there are 20 different places to get food. twenty percenct of them are ice cream shops. how many ice cream shops are in the park?

Answers

Answer:

4 of the shops are ice cream shops.

Step-by-step explanation:

If you take 20 and multiply it by .20 (because when multiplying by a percent we move the decimal over twice) you will get that 4 of the shops are ice cream shops.

[tex](.20) * (20) = 4[/tex]

Hope this helps!!

- Kay :)

Select all the statements that are true for the graph shown. Submarine's Descent 0 2 4 6 0 X -4 -8 Height Above Sea Level (ft) -12 -16 у Time (sec)​

Answers

Answer: A , C

Step-by-step explanation: this is 7th grade work

Select the graph that represents the given set. (Click on the graph until the correct one is showing.)
C = {(-1, 3), (0, 3), (1,3), (2, 3)}

Answers

Answer:

umm is there a a picture?

Step-by-step explanation:

Answer:

you need to provide the graphs home boy

Step-by-step explanation:

Please I will mark brainliest! Which equation describes the line graphed above?

A.


B.


C.


D.

Answers

I dont know the exact way that the equations are written but ill give it in

y = mx + b form

it should be y = -3x - 3

Answer:

C

Step-by-step explanation:

How many inches are in 1 2/5 groups of 1 2/3 inches? PLEASE HELPPPP I ONLY HAVE 10 MINUTES LEFT

Answers

Answer:

i believe its 2.3324 sorry if its wrong, it was rushed

Step-by-step explanation:

There are 2 1/3 inches in  1 2/5 groups of 1 2/3 inches.

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

There are 1 2/5 groups of 1 2/3 inches.

Now,

Since, There are 1 2/5 groups of 1 2/3 inches.

Hence, The number of inches = 1 2/5 × 1 2/3

                                              = 7/5 × 5/3

                                              = 7/3 inches.

Thus, There are 2 1/3 inches in  1 2/5 groups of 1 2/3 inches.

Learn more about the multiplication visit:

https://brainly.com/question/28768606

#SPJ2

If a 14 oz. box contains 4 cookies, how many ounces are in a box that contains
10 cookies?

Answers

14/4 = 3.5 oz per cookie
10 * 3.5 = 35 oz for 10 cookies
14 oz contrains 4 cookies
Then half of 14 oz contains half of 4 cookies (7 oz. box = 2 cookies)
2 times 5= 10 cookies
7 oz box times 5 is 35 oz

The answer is 35 oz

y = 4x – 3 DON'T KNOW THE ANSWER

Answers

Answer:

x=3/4, x=0.75

Step-by-step explanation:

Y=4x-3
+3. +3
Y+3=4x

Y+3/4=x

(You can’t simplify/solve the equation for the list because there’s two variables)

SOME ONE PLS HELP ME

Answers

Answer:

Two sheats would cost $27.00 and six scheats would cost $99.00

Step-by-step explanation:

2 sheets = $27
6 sheets = $99

Question I’m ten and I’m homeschooled I don’t know what grade I’m supposed to be in so I was wondering if you knew?

Answers

ummmm you should maybe ask your mom or dad

Answer:

If you want you can join my zoom meeting so you can explain better?

i would be happy to help!

Step-by-step explanation:

70×2 -40 = what answer right this is for fun you'll get brainliest​

Answers

Answer:

100

Step-by-step explanation:

Answer:

100

Step-by-step explanation:

70x2 = 140

140-40 = 100

The perimeter of a rectangle is 208 inches. The ratio
of its length to its width is 5:3. What are the
dimensions of this rectangle?
A. 60 in by 44 in
B. 65 in by 39 in
C. 68 in by 36 in
D. 72 in by 32 in

Answers

Answer:

The dimensions of this rectangle are 65 in by 39 in ⇒ B

Step-by-step explanation:

Let us use the ratio method to solve the question

∵ The perimeter of the rectangle = 2(length + width)

∵ The perimeter of a rectangle is 208 inches

∴ 208 = 2(length + width)

→ Divide both sides by 2

∴ 104 = length + width

∵ The ratio  of its length to its width is 5: 3

∴ The sum of the ratios = 5 + 3 = 8

→ By using the ratio method

→  length  :  width  :  length + width

→  5           :  3         :  8

→  x            :  y         :  104

→ By using cross multiplication

∵ x × 8 = 5 × 104

∴ 8x = 520

→ Divide both sides by 8

∴ x = 65

∵ y × 8 = 3 × 104

∴ 8y = 312

→ Divide both sides by 8

∴ y = 39

∵ x and y represents the length and the width of the rectangle

∴ The length = 65 inches

∴ The width = 39 inches

∴ The dimensions of this rectangle are 65 in by 39 in

Use the linear combination method to solve the system of equations. –3x + 8y = 16 3x + 4y = 8 What is the value of x? –1 0 1 2

Answers

Answer:

B. 0

Step-by-step explanation:

Your welcome :)

Answer:

b.0

Step-by-step explanation:

i got it right

please help find slope :(((

Answers

The slope is -1/4

It is going down 1 unit and going 4 units to the right. Hope this helps!

-1/4 the answer ))))

Please explain how to do this.

Answers

Step-by-step explanation:

let the eqn be y = mx + b.

m = 200/(900 - 700) = 1

sub (700, 0):

0 = 700 + b

b = -700

therefore eqn is y = x - 700

Topic: coordinate geometry

If you like to venture further, do check out my insta (learntionary) where I regularly post useful math tips! Thank you!

MATH QUESTION - Please Help
Rachel spent $36.32 in the
grocery store. She paid the exact
amount and used exactly 4 bills and
4 coins. What bills and coins did
Rachel use?

Answers

She used a 20, 10, 5, and 1, she also used a quarter, nickel, and 2 pennies

Answer:

she used a $20 bill, $10 bill, $5 bill, $1 bill, 25 cents 5 cents, and 2 pennies

Step-by-step explanation:

I need help with this question please show the work​

Answers

Step-by-step explanation:

5+3y=12

3y=12-5

3y=7

y=7/3

Identify the ordered pair of C. (ex; (5,-1))

will give brainly if answered correctly! :)

Answers

Answer:

(5,0)

Step-by-step explanation:

lol

Answer

(5,-1) is the c

Plz help me solve this math question

Answers

Answer:

John's family should second scheme.

Evaluate the expression: 6(a + b) where a = -3 and b = 6

Answers

Answer here you go

Step-by-step explanation:

(-3 x 6 = -18)

6 x -18= -108

multiplication with postive and gegitives rule of thumb

negative times a positive equals a negative

negitive times a negative equals a positive

can someone explain to me what probability is

Answers

Answer:

Probability is the probability of an occurrence taking place or the number of favorable events divided by the number of potential outcomes.

Step-by-step explanation:

Answer:

Probability is the likelihood of something happening.

Step-by-step explanation:

It is more probable of something reasonable happening, as opposed to something non-reasonable.

a number that multiplies a variable in a term is a

Answers

Answer:

Coefficient

Step-by-step explanation:

Find the quotient. 514÷15 A. 720 B. 7834 C. 267 D. 314

Answers

Answer:314

Step-by-step explanation:

David wants to earn more than trimming trees. He charges per hour and pays in equipment fees. What are the possible numbers of hours David could trim trees? Use for the number of hours. Write your answer as an inequality solved for .

Answers

This question is incomplete

Complete questions

David wants to earn more than $26 trimming trees. He charges $6 per hour and pays $4 in equipment fees. What are the possible numbers of hours David could trim trees? Use for the number of hours. Write your answer as an inequality solved for

Answer:

The inequality is :

6h - 4 > 26

The possible numbers of hours David could trim trees is more than 5 hours

Step-by-step explanation:

David wants to earn more than $26 trimming trees. He charges $6 per hour and pays $4 in equipment fees.

Let the number of hours David works for be represented by h

More than means greater than , hence we use the inequality sign >

Hence, we have the inequality

$6 × h + $4 > $26

6h - 4 > 26

6h > 26 + 4

6h > 30

Divide both sides by 6

6h/6 > 30/6

h > 5

Hence, if David want to earn more than $26 he has to trim trees for more than 5 hours

please help me

A triangular pyramid and its net are shown. Rain uses the calculations below to conclude that the surface area of the triangular pyramid is 238.5 square inches. 3 x 10 x 13) + ( x 10 x 8.7) 3 (65) + 43.5 238.5 Is Rain correct? Use the drop-down menus to explain your reasoning.​

Answers

Answer:

Yes, Rain is correct

238.5 square inches

Step-by-step explanation:

Surface Area of a Triangular Pyramid,A = 1/2(a × b) + 3(1/2 × b × s)

= (1/2 × 10 × 8.7) + 3(1/2 × 10 × 13)

= 43.5 + 3(65)

= 43.5 + 195

= 238.5 square inches

The surface area of the triangular pyramid = 238.5 square inches

The surface area of the net of the triangular pyramid is 223.5 in². Rain is not correct.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

From the net attached:

Surface area = 3(1/2 * 10 * 12) + (1/2 * 10 * 8.7)

Surface area = 223.5 in²

The surface area of the net of the triangular pyramid is 223.5 in². Rain is not correct.

Find out more on equation at: https://brainly.com/question/2972832

#SPJ5

Help me please with this question:)

Answers

Answer:

it's the second one.

option 2

B
SIS
M
If = of the pie below is eaten,
what fraction remains?

Answers

Answer:

the answer to this question is 1/4

Answer:

jgcoyc9t9yf9ycrcuflc

Solve for x. 1) 22x -2=20x+10​

Answers

Answer:

x=6

Step-by-step explanation:

22x-2=20x+10

22x-20x=10+2

2x=12

x=6

Answer:

x = 6

Step-by-step explanation:

22x - 2 = 20x + 10

      +2             +2

22x = 20x + 12

-20x    -20x

2x = 12

2x/2   12/2

x = 6

Clara created a coordinate grid of her city. The bowling alley is located at (10, 12) and the skating rink is located at (-6, -4). Halfway between the bowling alley and skating rink is the movie theater. clara's house is halfway between the movie theater and skating rink. what are the coordinates of clara's house?

Answers

Answer:(-2,0)

Step-by-step explanation:

you just kinda have to guess tbh that’s what i did

The number of fish in a lake decreased by 25% between last year and this year. Last year there were 60 fish in the lake. What is the population this year? If you get stuck, consider drawing a diagram.

Answers

60 * 0.25 = 15
15 fishes will decrease from 60
60 - 15 = 45 fishes this year

Answer:

45 your welcome <3.

Jeremy wants to give a 20% gratuity to his cab driver. His fare is $35.50. What is the total amount he will pay the driver?


A. $7.10

B. $17.75

C. $42.60

D. $63.90

Answers

Answer:

the answer is A. $7.10

Step-by-step explanation:

Answer:

42.60 aka C

Step-by-step explanation:

:)

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