3 years ago

4y+2y+x+2x please help

Mathematics

1 answer:

DochEvi [55]3 years ago

8 0

Answer:

Solution

Step-by-step explanation:

This is the best of what I got.

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Rewrite the expression by using symbols 7(x - 20)

Lelechka [254]

7 × x - 7 × 20

You could rewrite it this way, 7 x (x-20), but the answer above is better 'cause it takes away the grouping symbols

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3 years ago

Simplify the expression 17y-2x+3(3x-y)+2x

Marat540 [252]

Answer:

9x+14y

Step-by-step explanation:

First Multiply the number outside of the brackets with the numbers inside the brackets. Ex:3 x 3x and 3 x -y

17y-2x+3(3x-y)+2x

That should get you to this.

17y-2x+9x-3y+2x

Next combine like terms.

14y+9x

Hope this helps!

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4 years ago

Dave wants to buy a bike for $180. He has $40. Dave mows lawns for $10 per lawn.

LenaWriter [7]

Answer:

180 = 40 + 10x

Step-by-step explanation:

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3 years ago

Suppose Lin labels the books at a constant speed of s books per minute. There can be several equations written that represent th

Alla [95]

Answer:

$S = \frac{b}{m}$

Step-by-step explanation:

Given

$Speed = s$

Required

Determine the expression for s

The speed is calculated as:

$Speed = \frac{Number\ of\ books}{Time}$

Substitute S for speed

$S= \frac{Number\ of\ books}{Time}$

Let the number of books be b and the time be m.

The expression becomes

$S = \frac{b}{m}$

Hence, the expression for the scenario is:

$S = \frac{b}{m}$

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3 years ago

5% of adults participate in at least 30 minutes of exercise each day. How likely is it that a randomly chosen adult will exercis

MaRussiya [10]

Answer:

5 out of 100 adults so not very likely

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4 years ago