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3 years ago

Help plsssss ill give brainly

Mathematics

1 answer:

Anna007 [38]3 years ago

4 0

Answer:

7x + 20 or 20 + 7x

Step-by-step explanation:

2(5 + 3x) + (x + 10)

=> Multiply the parenthatic values in the first parenthesis by 2

(10 + 6x) + (x + 10)

=> Now add similar values

20 + 7x

Hope this helps!

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The amount of force one exerts on a wrench handle to loosen a bolt is inversely

Inessa [10]

Answer:

$F = \frac{1152}{l}$

b) l=19.2 units

Step-by-step explanation:

a)Let F represent the force and l represents the length of the wrench handle.

Then inverse variation relation is:

$F\propto \: \frac{1}{l}$

When we introduce the variation constant, we get:

$F = \: \frac{k}{l}$

From the question when F=96, l=12

$96= \: \frac{k}{12}$

$k = 1152$

The equation is

$F = \: \frac{1152}{l}$

b) If a person can only exert 60 pounds of force on a wrench,then

$60 = \frac{1152}{l}$

$\implies \: l = \frac{1152}{60}$

$l = 19.2$

Hence the length of the wrench must be 19.2 units

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3 years ago

Find the mean of 4,8,8,9,11

Len [333]

The mean of the given numbers is 8.

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4 years ago

Read 2 more answers

Nia solved the equation -1.98 = 5.2v + 13.1. Her answer was v = -2.9. She is fairly confident about her answer, but wants to do

valina [46]

Answer:

substitute for v, when v = -2.9

Step-by-step explanation:

$-1.98=5.2v+13.1$

subtract 13.1 on both sides.

$-15.08=5.2v$

divide by 5.2 to isolate v

$\frac{-15.08}{5.2} = \frac{5.2v}{5.2}$

$-2.9=v$

substitute for v

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$-1.98=-15.08+13.1$

$-1.98=-1.98$

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3 years ago

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What is the question? i could help you if i knew the question

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