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umka2103 [35]
3 years ago
6

Solve the following system of equations using the SUBSTITUTION METHOD.

Mathematics
2 answers:
Nonamiya [84]3 years ago
4 0

Answer:

x = 7, y = 2

Step-by-step explanation:

x= 4y -1

since x is by itself 4y-1 will substitute for x in the other equation x+2y=11

it will become 4y-1+2y=11

+1 +1

add one to both sides since is doesn't have a variable.

it will become 4y+2y= 12 now add 4y+2y

becomes 6y=12

_ _

6 6

divide by 6 on each side and you get y=2.

now x=4(2)-1 you will substitute y into the first equation.

x=8-1 subtract 8 from 1 to get 7.

x=7

y=2

lions [1.4K]3 years ago
4 0

Answer:

hope it helpss

Step-by-step explanation:

hastag keri onlornengs

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Which value of c would make the following express completely factored? 8x+cy
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The answer is B, 7.

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3 years ago
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AlexFokin [52]

Answer:

36 <127

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36 [ cos (127) + i sin (127)]

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w1 = 2 < 95

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Stefan sells Jin a bicycle for $137 and a helmet for $17. The total cost for Jin is 140% of what Stefan spent originally to buy
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Answer:

Stefan originally spent $110.

Stefan made a profit of $44.

Step-by-step explanation:

Given that:

Stefan sold the bike and helmet for $137 and $17

Total amount = 137+17 = $154

This is 140% of the price Stefan originally paid.

Let,

x be the original price paid by Stefan

140% of x = $154

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Hence,

Stefan originally spent $110.

Stefan made a profit of $44.

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