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xeze [42]
2 years ago
11

Solve the system by substitution 7x-6y=16 (1) y=-5 Show step by step

Mathematics
1 answer:
Nostrana [21]2 years ago
4 0

Answer:

7x - 6y = 16

y = (-5)

using substitution method

7x - 6(-5) = 16

7x +30 = 16

7x = 16 - 30

7x = 14

x = 14/7

x= 2

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Cost to store: $140<br><br> Markup: 25%
anastassius [24]
The actual cost to the store = $140
Percentage of markup = 25%
Amount of markup in cost = (25/100) * 140 dollars
                                        = 35 dollars
Then
Sell price in the store = (35 + 140) dollars
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So the sell price of the product at the store after addition of the markup price will be $175.
7 0
3 years ago
HELP ME FIND X AND Y: 2x = 4y + 6 and 3x - y = -1
Naddika [18.5K]

Answer:

x = -1

y = -2

Step-by-step explanation:

To get y by itself:

3x - y = -1

-y = -1 - 3x

y = 1 + 3x

Solve for x with substitution:

2x = 4(1 + 3x) + 6

2x = 4 + 12x + 6

2x = 10 + 12x

-10x = 10

x = -1

Plug the x value into 3x - y = -1

3(-1) - y = -1

-3 - y = -1

-y = 2

y = -2

8 0
2 years ago
Read 2 more answers
PLS HELP .........................
Romashka [77]

Answer:

Step-by-step explanation:

The answer (y intercept) occurs when x = 0

The answer is -2

-5y = 10

y = 10/-5

y = - 2

7 0
2 years ago
Read 2 more answers
A new section of the freeway will be 6 3/5 miles long. So far 1/6 of the new section has been completed. How many more miles mus
saveliy_v [14]
Divide 1/16 by 3/5 and you get .104 we can check by multiplying our answer by 3/5 and we get 1/16
8 0
3 years ago
Answer this. It's the area of a trapezoid
Lelechka [254]
((b1+b2)÷2)(h)=A
so I think the answer is 3 1/16 or 3.0625
6 0
3 years ago
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