Answer:
60 divided by 20 is 3 so 30 times 3 is 90
Answer:
5000
Step-by-step explanation:
Answer:
23
Step-by-step explanation:
5(-2)² - 3(4)/(2(-2))=
5(4) -12/(-4)=
20 + 3 = 23
Answer:
2. "two thirds of the fourth power of <em>r</em>"
4. n + 14
6. 7 +11n
8. (2/5)n^2
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7. 28
8. 1/5
Step-by-step explanation:
2. "two thirds of the fourth power of <em>r</em>"
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4. "sum" means the listed items are added. You can use any convenient variable to represent "a number." I often use <em>n</em> for <em>n</em><em>umber</em>.
n + 14
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6. "7 more than" means 7 is added to whatever follows. "11 times a number" means the number is multiplied by 11.
7 + 11n
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8. "of" means "times". The square of a number is that number to the power of 2.
(2/5)n^2
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7 & 8 (evaluation). Your calculator can do this. (If not, get one that can.) Note that parentheses are needed around numerators and denominators and anything else that must be treated as a single value.
I hope this helps you
6x-4 (x+2)= -10x
6x-4x-8= -10
2x= 2
x= 1
y=1+2=3