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ad-work [718]
3 years ago
9

Solve the system of equations below by elimination.

Mathematics
1 answer:
makvit [3.9K]3 years ago
7 0

21

Step-by-step explanation:

so you add 7 by 20 then answer ×I =

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It’s 5 1/3 because 16 divided by 3 is 5 1/3
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3 years ago
5. An investment doubles in value every 9 years. What was the starting value of the investment if
arlik [135]

Answer:

16,00

Step-by-step explanation:

9 years is the (time)

divide the 27 years by 9 to see how many times it doubles

the ans is 3

now simply divide the value which is $4,800 by the 3

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7 0
3 years ago
A national survey of middle school students asks how many hours of sleep they get on school nights. Which sample ​best​ represen
mariarad [96]

Answer:

D

Step-by-step explanation:

It wouldnt be a single grade being surveyed so we would choose d in additon a and b isnt national since it says 'in a certain town' and 'in a certain county'.

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5 0
2 years ago
Nick is 30 years less than 3 times Rays age. If the sum of their ages is 74,how old are each of the men? Solve and write an equa
zaharov [31]
Nick = n
Ray = r

n=3r-30
n+r=74

3r-30+r=74
4r-30=74
4r=104
r=26
n=26*3-30
n=78-30
n=48
Nick is 48 years old and Ray is 26 years old
Hope this helps.
5 0
3 years ago
Franco earns $8 per hour at his after-school job. Last week, he received a paycheck of more than $168. If he worked for h hours
GarryVolchara [31]
8h=168
168 divided by 8= h
h=21
He worked 21 hours
3 0
3 years ago
Read 2 more answers
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