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grin007 [14]
3 years ago
14

Solving systems by substitution y=-4x-7-4x-y=7​

Mathematics
1 answer:
REY [17]3 years ago
4 0
The variable y is given.
now, substitute y in the second equation to get
-4x - (-4x-7) = 7
then we solve

first distribute
-4x+4x+7=7
combine like terms
0+7 = 7
7 = 7

because the answer is true, the solution to this system is “all real numbers”
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From the set {200, 210, 388}, use substitution to determine which value of x makes the equation true.
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Answer:

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Step-by-step explanation:

because x= 386

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3 years ago
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Can you solve for y plz
vredina [299]
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Top equation: subtract 4 from both sides to get x = y - 4
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What is the measure of angle A'B'C?
Agata [3.3K]

All Angles Added: 180

Measures of Idiviudual Angles

A=70   C=70  B=40

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Step-by-step explanation:

All angles of a triangle when combined must equal 180 degrees.

Since the triangle is an isosceles triangle, at least 2 sides must be congruent meaning that A=C since the triangle is not equilateral.

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3 years ago
Sammy buys 5 pounds of oranges for 7.50 at this rate how much would 8 pounds of oranges cost
Nadusha1986 [10]

The cost of 8 pounds of oranges based on the total cost of 5 pounds bought is 12.00

What is the cost for a pound of oranges?

The cost of a pound of oranges based on the rate at which 5 pounds were bought and 8 pounds would also be bought is determined as the amount paid for 5 pounds of oranges divided by the number of pounds of oranges bought

cost per pound of oranges=cost of 5 pounds/5 pounds

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cost of 8 pounds of oranges=1.50*8pounds

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2 years ago
Find the measure of CDE
Free_Kalibri [48]

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Here,

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(i amnt sure about answer)

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3 years ago
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