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const2013 [10]
3 years ago
15

Solve using Substitution y = 6x - 11 -2x - 3y = -7

Mathematics
1 answer:
vladimir2022 [97]3 years ago
4 0

Answer:

(2, 1)

Step-by-step explanation:

To solve by substitution, we solve one equation for one of its variables and then substitute the solved value for that variable into the other equation. Because this system of equations already has one solved for the variable, this makes our job much easier. We only need to implement the solved value for y into the other equation and solve for x.

y = 6x - 11

-2x - 3(6x - 11) = -7 Distribute.

-2x - 18x + 33 = -7 Combine like terms.

-20x + 33 = -7 Subtract 33 from both sides of the equation.

-20x = -40 Divide by -20 on both sides of the equation.

x = 2

Then, with this value, we will place it into the equation that was already solved for y in order to get a definite value for y.

y = 6(2) - 11

y = 12 - 11

y = 1

Using this information, the coordinate pair for this equation (the point of intersection between the two lines) is (2, 1).

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How many times larger is 9 x 10000 to 5 x 1000
Whitepunk [10]
9 x 10,000 is B. 18 times larger than 5 x 1,000.

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Let y=(3x + f(4 − x^2))^3. Find dy/dx for x=1, given that f(3)= -6 and f'(3)= 4
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Step-by-step explanation:

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7 0
3 years ago
22.a) A fruit vendor bought 1948 oranges on a Thursday and sold 750 of them on the same day.
iVinArrow [24]

Answer: Ksh 6144

Step-by-step explanation:

On Thursday, a fruit vendor bought 1948 oranges on a Thursday and sold 750. The number of oranges left will be: = 1948 - 750 = 1198

On n Friday, he sold 240 more oranges than on Thursday. This means the number of oranges sold is: = 240 + 750 = 990.

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On Saturday, he bought 560 more

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