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Mrac [35]
2 years ago
9

Twenty more than half a number is 70. What is the number

Mathematics
2 answers:
astraxan [27]2 years ago
5 0

Answer:

100

Step-by-step explanation:

we start by subtracting 20 from 70, which is 50

we double 50 to get 100

levacccp [35]2 years ago
4 0

Answer:

n =  100

Step-by-step explanation:

20 + 1/2n = 70

subtract 20 from both sides

1/2n = 50

multiply both sides by the reciprocal of 1/2 which is 2

n = 100

hope this helps

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Step-by-step explanation:

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Answer:

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\bf \stackrel{\textit{\underline{p(v)} varies inversely with \underline{v}}}{p(v)=\cfrac{k}{v}}\qquad \textit{we also know that } \begin{cases} p(v)=25\\ v=200 \end{cases} \\\\\\ 25=\cfrac{k}{200}\implies 5000=k\qquad therefore\qquad \boxed{p(v)=\cfrac{5000}{v}}

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3 years ago
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