It takes 8 people to pull a 16 ton truck. How many people would it take take to pull a 60 ton truck? I got 30 people am I right? If not can you tell me the answer with work? (:
Answers
we can make that a proportion
8:16
which can be reduced to
1:2
that means 1 person can pull 2 tons
to pull a 60 ton truck, you would have a proportion of
x: 60 = 1:2
cross multiply and you get
60 = 2x
x = 30
yes, you're right!
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The percentage increase in Angie's height is 3 %
Solution:
Given that, In one year, Angie's height went from 58 to 60 inches
To find: percentage increase
The percent increase between two values is the difference between a final value and an initial value, expressed as a percentage of the initial value.
The percent increase is given as:
Here in this problem,
Initial value = 58 inches
Final value = 60 inches
Substituting the values we get,
Thus percentage increase in Angie's height is 3 %
y =
x +
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X+9
X=9
9x+9y=18xy
Hope it helped
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It combines the multiplication of "easier" numbers with addition.
So, for example if we want to multiply 12 and 13 we can instead multiply 13 and 10 and 2 and 13 and then add the result!
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Simplify
10(x−2)+15=8x+7
(10)(x)+(10)(−2)+15=8x+7(Distribute)
10x+−20+15=8x+7
(10x)+(−20+15)=8x+7(Combine Like Terms)
10x+−5=8x+7
10x−5=8x+7
Subtract 8x from both sides.
10x−5−8x=8x+7−8x
2x−5=7
Add 5 to both sides.
2x−5+5=7+5
2x=12
Divide both sides by 2.
2x/2 = 12/2
x=6