3 years ago

How many servings can be made from 108 cups of punch?

Mathematics

1 answer:

yarga [219]3 years ago

5 0

38 servings I think

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Mike saves $42 a week for 7 weeks. During his 8-day vacation, he plans to spend $8.25 each day for snacks. Which expression show

Alla [95]

The answer is B, because you will have to multiple 42 by 7 to see how much money he will have in 7 weeks and then you will have to subtract 8 × 8.25 to see how much money he spent on his vacation.

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3 years ago

The lengths in cm, of the length of a rectangle is 2x+3 cm and of the width of the rectangle is x+5 cm.

STatiana [176]

Answer:

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3 years ago

If f(x) = x2 - 2x and g(x) = 6x + 4 for which value of x does (t +g)(x)=0

Vinil7 [7]

Answer:

-2

Assumption:

Find the value of x such that $(f+g)(x)=0$ .

Step-by-step explanation:

$(f+g)(x)=0$

$f(x)+g(x)=0$

$(x^2-2x)+(6x+4)=0$

Combine like terms:

$x^2+4x+4=0$

This is not too bad too factor on the left hand side since 2(2)=4 and 2+2=4.

$(x+2)(x+2)=0$

$(x+2)^2=0$

So we need to solve:

$x+2=0$

Subtract 2 on both sides:

$x=-2$

Let's check:

$(f+g)(-2)$

$f(-2)+g(-2)$

$((-2)^2-2(-2))+(6(-2)+4)$

$(4+4)+(-12+4)$

$(8)+(-8)$

$0$

0 was the desired output of $(f+g)(x)$ .

7 0

3 years ago

Please help 20 points

12345 [234]

Answer:

x =± (√ 317/ 2 )+( 15 /2)

6 0

3 years ago

Please help me with math!

Lana71 [14]

B should be correct
Hope that helped

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3 years ago