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3 years ago

Amanda is shopping for clothing at a

1 answer:

7 0

First you need to set up your equation.

If you read the question it states one equation IS THE SAME AMOUNT of another equation so here it is:

3x+7= 2x+18

You want to find out x in both equations so I’ll help step by step

1. Subtract 2x from both sides

This leaves you with x+7=18

2. Then subtract 7 on both sides

This leaves you with x=11

So x equals 11 for equations.

You can check by plugging in 11 in x. If you get 40 on both sides....

CONGRATS!! You did it

I hope this helped. Have a great day!

You might be interested in

Equations, Their Slopes And Y-intercepts. Please 9,11 and 12 question! Thank you!)

MakcuM [25]

Hey there!

(9) 2x-9y=45

... -9y=-2x+45

... y = (2/9)x - 5

Slope = 2/9

y-intercept = (0,-5)

(11) 3y+2x=-15

... 3y=-2x-15

... y = (-2/3)x - 5

Slope = -2/3

y-intercept = (0,-5)

(12) 10x+8y=40

... 8y=-10x+40

... y=(-10/8)x+5

Slope = -5/4 (after simplifying )

y-intercept = (0,5)

Hope my answer helps!

3 0

3 years ago

Read 2 more answers

With two reapers operating, a field can be harvested in 1 h. If only the newer reaper is used, the crop can be harvested in 1.2

kolezko [41]

<u>Answer:</u>

The older repear will harvest in 6 hrs

<u>Explanation:</u>

Given a field can be harvested in 1 hr with 2 reapers

Consider the total field to be 1

Let x be the time of older’s reaper

The field can be harvested in 1.2 hr with newer reaper alone

Older’s time of harvesting = $\frac{1}{x}$ per hour

Newer’s time of harvesting = $\frac{1}{1.2}$ per hour

Total (Older+Newer) = 1 = ${\frac{1}{x}+\frac{1}{1.2}$ }

$\frac{1}{x}+\frac{1}{1.2}=1$

$\frac{1.2+x}{1.2 x}=1$

1.2 + x = 1.2x

1.2 = 0.2x

x = 6

Therefore, older repear will harvest in 6 hrs

5 0

2 years ago

What is the factored form of 8x^2 + 12x

Crazy boy [7]

The answer is the following:

4x(2x+3)

hope it helped :)

6 0

2 years ago

Read 2 more answers

Find the value of x. Round your answer to the nearest tenth.

Crazy boy [7]

<h2>The value of x "option A) 12.5" is required answer.</h2>

Step-by-step explanation:

In given figure,

Base (b) = 11 and Angle = 28°

To find, the value of x = ?

We know that,

$\cos A=\dfrac{b}{h}$

Where, h is the hypotaneous = x

⇒ $\cos 28=\dfrac{11}{x}$

⇒ $x=\dfrac{11}{\cos 28}$

The value of $\cos 28$ = 0.8829

⇒ x = $\dfrac{11}{0.8829}$

⇒ x = 12.458

⇒ x ≈ 12.5

∴ The value of x ≈ 12.5

Thus, the value of x "option A) 12.5" is required answer.

7 0

3 years ago

Which equation is represented by the graph below?

LuckyWell [14K]

Answer:

Step-by-step explanation:

Hello

A (5;2)

B (-1;-7)

y = ax + b

2 = 5a + b

-7 = -a + b

2 - (-7) = 5a - (-a) + b - b

2 + 7 = 5a + a

9 = 6a

a = 9/6

a = 3/2

2 = 3/2 * 5 + b

b = 2 - 15/2

b = 4/2 - 15/2

b = 11/2

y = 3/2 x + 11/2

y+1= 3/2(x-4)

y + 1 = 3/2 x - 6

y = 3/2 x - 6 - 1

y = 3/2 x - 7 => no

y-4= 3/2(x+1)

y - 4 = 3/2 x + 3/2

y = 3/2 x + 3/2 + 4

y = 3/2 x + 3/2 + 8/2

y = 3/2 x + 11/2 => yes

y+4= 3/2(x-1)

y + 4 = 3/2 x - 3/2

y = 3/2 x - 3/2 - 4

y = 3/2 x - 3/2 - 8/2

y = 3/2 x - 11/2 => no

y-1= 3/2 (x+4)

y - 1 = 3/2 x + 6

y = 3/2 x + 6 + 1

y = 3/2 x + 7 => no

5 0

2 years ago

Read 2 more answers