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MAVERICK [17]
2 years ago
11

Y=2x+10 y=x+1 solve using substitution

Mathematics
1 answer:
Anvisha [2.4K]2 years ago
6 0

Answer:

x = -9

y = -8

Step-by-step explanation:

here's the solution :-

=》y = 2x + 10

=》y = x + 1

plunging the value of y from equation 1 into equation 2

=》2x + 10 = x + 1

=》2x - x = 1 - 10

=》x = -9

value of x = -9

now, plugging the value of x in equation 2, we get :-

=》y = x + 1

=》y = -9 + 1

=》y = -8

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A sum of money amounting to $4.15 consists of dimes and quarters. If there are 28
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Answer:

there are 9 quarters and 19 dimes

Step-by-step explanation:

Let x be the number of dimes and y the number of quarters

-dimes: 0.1x

-quarters: 0.25y

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=> x = 28 - y

We have the equation:

0.25y + 0.1x = 4.15

0.25y + 0.1(28 - y) = 4.15

0.25y + 2.8 - 0.1y = 4.15

0.15y = 1.35

y = 9

x = 28 - y

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3 0
3 years ago
What is the volume of this container?
BabaBlast [244]

Answer:

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Step-by-step explanation:

V=L*W*H,so 11*14*7=1078   and 7*5*5=175

175+1078=1253

Mark me brainliest if I helped:D

7 0
3 years ago
Read 2 more answers
Harry solved a quadratic equation. His work is shown below.
Pie

Answer:

x = 11 or x = -1

Step-by-step explanation:

(x-5)^2 = 36

(x-5) = 6 or (x-5)= -6

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4 0
2 years ago
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A prism has a trapezoid as its base whose area is 140 square centimeters. A cylinder with the same height has a radius of 6 cent
Eddi Din [679]

Answer:

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Step-by-step explanation:

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area of the base(trapezoid) = 140 cm²

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To know how much larger the volume of the prism is than the volume of the cylinder we have to take the difference of the volume.

Recall the height are the same

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3 years ago
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Answer:

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Step-by-step explanation:

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