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Yanka [14]
3 years ago
11

Solve each system of equation y=x+1 y=2x-1

Mathematics
1 answer:
puteri [66]3 years ago
5 0

Answer:

{X=2Y=3 Explanation: Combining the two equations, we find: 2X−1=Y=X+1 Subtract X from both ends to get: X−1=1 Add 1 to both sides to get: X=2 Then: Y=X+1=2+1=3 Notes In general, given two equations in X and Y, then you can (attempt to) solve by substitution as follows: Choose one of the equations from which it is easiest to derive a formula for X in terms of Y or Y in terms of X. Then substitute the resulting formula in the other equation to get an equation in one variable. Solve the resulting equation, then substitute the value you have found into one of the other equations to find the other variable's value.

Step-by-step explanation:

hope this helps and plz give ne brainlist :)

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Answer:9000

Step-by-step explanation:

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4 years ago
Read 2 more answers
Select repeating or nonrepeating to correctly classify each decimal
zzz [600]

Answer:

repeating

repeating

not repeating

repeating

Step-by-step explanation:

7 0
3 years ago
How do i find the surface area of a cylinder with a radius of 3.5 ft. and a height of 14 ft.
Karolina [17]
The formula for the surface area of a cylinder is:
2<span>π</span><span>r</span><span>h </span><span>+ </span><span>2</span><span>π</span><span>r^</span><span>2

If we substitute in the measurements that we know, you get:

2</span><span>\pi (3.5) (14) + 2</span><span>\pi (3.5)^2

If we simplify this expression, we get:

98</span><span>\pi + 24.5</span><span>\pi

If you simplify once more, you get

122.5</span><span>\pi or </span><span>≈ 384.85

Therefore, the surface area is 122.5</span>\pi or about 384.85<span>


</span>

3 0
3 years ago
What is the answer to this problem 1.5(x + 4) – 3 = 4.5(x – 2)?
erastova [34]

Answer:

x = 4

Step-by-step explanation:

1.5(x + 4) – 3 = 4.5(x – 2)

Distributive property

1.5x + 6 - 3 = 4.5x - 9

1.5x + 3 = 4.5x - 9

1.5x - 4.5x = -9 -3

-3x = -12

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7 0
4 years ago
Read 2 more answers
What is the simplified form of 15 x to the eighth power over 24 y to the fifth power divided by 4 x to the fourth power over 8 s
IRISSAK [1]
The exponent symbol when typing is ^. so I so rewrite this for you.
(15x^8 / 24y^5) / (4x^4 / 8y^2)

I assumed you meant 8y squared because you said 8 squared.

now when we divide by a fraction, we can actually multiply by it's reciprocal and get the same thing. The word reciprocal really just means flip it over. so:

(15x^8 / 24y^5) * (8y^2 / 4x^4)

let's reduce the coefficients ( the numbers in front of the x and y) to make it easier.

We have 15/24 which can be reduced to 5/8
and 8/4 which is 2/1

so:
(5x^8 / 8y^5) * (2y^2 / x^4)

multiply numerator and denominator
(10x^8y^2) / (8x^4y^5)

now reduce coeffient. 10/8 is 5/4
reduce x: x^8/x^4 is x^4
reduce y: y^2/y^5 is 1/y^3

now put together
5x^4 / 4y^3

so C
3 0
3 years ago
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