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bazaltina [42]
3 years ago
11

Solve each system using substitution. Check your answer. x+y=8 y=3x

Mathematics
1 answer:
ser-zykov [4K]3 years ago
7 0

Answer:

x = 2

y = 6

Step-by-step explanation:

x + y = 8

x + (3x) = 8

4x = 8

4x ÷ 4 = 8 ÷ 4

x = 2

-------------------------------

y = 3x

y = 3(2)

y = 6

----------------------------------

x + y = 8

(2) + (6) = 8

8 = 8

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An orange traffic cone has a diameter of 10 in. and a height of 28 in.
masha68 [24]

Answer:

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Step-by-step explanation:

V= 3.14*5^2*28/3

Order of Operations (PEMDAS)

5^2=25

25*3.14= 78.5

78.5*28= 2198

2198/3=732.66

Round to nearest cubic inch

733 inches

8 0
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There are three risk classes in a pool of insureds under a whole life insurance policy. 34% of the insureds are in Class D, 28%
KATRIN_1 [288]
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Kevin is 4 times as old as Daniel and is also 6 years older than Daniel.<br> How old is Kevin?
tester [92]

Answer:

kevin = 8 - hope this helped

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Step-by-step explanation:

Kevin = 4d  Kevin is 4 times as old as Daniel

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d=6/3 = 2

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Kevin is 8

Daniel is 2

3 0
2 years ago
If you help me I’ll love you forever &lt;3
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Answer:

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5 0
3 years ago
What is 0.34 miles per hour converted into a fraction or decimal?
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Answer:

Step-by-step explanation:

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