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3 years ago

12

Miguel's family goes out to dinner and their meal costs $42.75. The parents want to leave a 20% tip for the waitress. Miguel wan

ts to help contribute, but he can only afford to pay for 34% of the tip that parents have decided to leave. How much will Miguel leave?

2 answers:

neonofarm [45]3 years ago

4 0

I think the answer would be 10.15

USPshnik [31]3 years ago

3 0

Answer:

it would be 8.40 or 8.00

Step-by-step explanation:

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san4es73 [151]

The blank should be proportional.
$\frac{12}{8} = \frac{20 + x}{x} \\ 12x = 160 + 8x \\ 4x = 160 \\ x = 40$

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What is the average acceleration during the time interval 0 seconds to 10 seconds?

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Step-by-step explanation:

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3 years ago

The perimeter of a rectangular swimming pool is 414 meters. The length of the pool is 7 meters more than four times the width. F

PolarNik [594]

Answer:

Width = 40 meters

Length = 167 meters

Step-by-step explanation:

Let

Width of the pool = x meters

Then

Length of the pool = 4x + 7 meters

and

Perimeter $=2(x+4x+7)=2(5x+7)=10x+14$ meters

Hence,

$10x+14=414\\ \\10x=414-14\\ \\10x=400\\ \\x=40\ meters\\ \\4x+7=4\cdot 40+7=167\ meters$

5 0

3 years ago

Find the value of X*<br> X=<br> X х<br> 8<br> 12

lisov135 [29]

Answer:

12

Step-by-step explanation:

This is a proportion question.

8/x = 12/(12 + 6)

8/x = 12/18 Reduce the right hand side

8/x = 2/3 Cross multiply

2x = 8*3 Combine the right side

2x = 24 Divide by 2

x = 24/2

x = 12

5 0

3 years ago

What is the equation of the line that passes through the points (6,8) and (-3,2)

Vikki [24]

The point-slope form:

$y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (6, 8) and (-3, 2). Substitute:

$m=\dfrac{2-8}{-3-6}=\dfrac{-6}{-9}=\dfrac{2}{3}\\\\y-8=\dfrac{2}{3}(x-6)\qquad|\text{use distributive property}\\\\y-8=\dfrac{2}{3}x-4\qquad|+8\\\\y=\dfrac{2}{3}x+4\qquad|-\dfrac{2}{3}x\\\\-\dfrac{2}{3}x+y=4\qquad|\cdot(-3)\\\\2x-3y=-12$

Answer:

point-slope form: $y-8=\dfrac{2}{3}(x-6)$

slope-intercept form: $y=\dfrac{2}{3}x+4$

standard form: $2x-3y=-12$

8 0

3 years ago