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3 years ago

What is the value if m in the equation 1\2m-3/4n=16 when n=8

1 answer:

6 0

$\frac{1}{2}m-\frac{3}{4}n=16\ \ \ \ \ \ \ \ \ \ \ \ n=8\\\\\frac{1}{2}m-\frac{3}{4}\cdot8=16\\\\\frac{1}{2}m-6=16\\\\\frac{1}{2}m=16+6\\\\\frac{1}{2}m=22\ \ \ \ \ \ \ \ |\cdot2\\\\m=44$

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Andreas93 [3]

Answer:

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Step-by-step explanation:

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Read 2 more answers

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alina1380 [7]

Answer:

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Step-by-step explanation:

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3 years ago

Someone help please ASAP. In∆ABC, m a) How are the measures of m b) Solve for x:

miskamm [114]

$3x+9+8x+11+5x-8=180\\
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x=10.5\\\\
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4 0

3 years ago

John took all his money from his savings account. He spent $110 on a radio and 4/11 of what was left on presents for his friend

svp [43]

Answer:

$1210

Step-by-step explanation:

Let x be total amount

First John spent $110 on a radio and 4/11 of what was left on presents for his friends so he was left with

$\frac{7}{11}(x-110)=\frac{7}{11}x-70$

Then he put 2/5 of his remaining money into a checking account

$\frac{3}{5}\left(\frac{7}{11}x-70\right)$

Rest he donated to charity

$420=\frac{3}{5}\left(\frac{7}{11}x-70\right)\\\Rightarrow \left(\frac{7}{11}x-70\right)=\frac{2100}{3}\\\Rightarrow \frac{7}{11}x-70=700\\\Rightarrow \frac{7}{11}x=770\\\Rightarrow x=1210$

Hence total amount of money John originally had was $1210

8 0

2 years ago