3 years ago

Evaluate the expression when x = 1/2 and y = -2/5. Show all work.1. -x + y2. x +2y

1 answer:

NISA [10]3 years ago

4 0

I am old, so I like to use paper & pencil

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adoni [48]

$3+\dfrac{x}{2}=10\qquad|\text{subtract 3 from both sides}\\\\\dfrac{x}{2}=7\qquad|\text{multiply both sides by 2}\\\\\boxed{x=14}$

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3 years ago

lesya [120]

Answer:63 cm

Step-by-step explanation:

Given

The scale of creation is 2:9

The width of the toy wheel is 14 cm

Suppose x is the actual width of the truck

$\therefore \dfrac{2}{9}=\dfrac{14}{x}\\\\\Rightarrow x=\dfrac{9}{2}\times 14=63\ cm$

Thus, the width of actual truck is 63 cm

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3 years ago

Ivahew [28]

I believe you are correct

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3 years ago

zubka84 [21]

divide total bags by number of hours

30 bags / 3 hors = 10 bags per hour

he racked 10 bags per hour

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3 years ago

Scilla [17]

Answer:

x ≓ 3.242593855

Step-by-step explanation:

8 0

3 years ago