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Ivahew [28]
3 years ago
8

How to solve 3x+y=6 and y=-3 using substation method

Mathematics
1 answer:
mafiozo [28]3 years ago
7 0

Answer:

x=3

Step-by-step explanation:

since they give you y this is a very simple problem

simply replace y with -3 and get

3x+(-3)=6

adding a negative number is the same as subtracting a positive number

3x-3=6

add 3 on both sides

3x=9

divide by 3 on both sides

x=3

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Find the value of x and the value of y
steposvetlana [31]

Answer:

B.   x = 7, y = 4√2

Step-by-step explanation:

Drop a vertical from the upper left corner

This creates a rectangle and a 45-45-90 triangle

The bottom of the rectangle is 3

The legs of the triangle are 4

Therefor

x = 4 + 3

x = 7

For a 45-45-90 triangle

the hypotenuse = leg * √2

y = 4√2

4 0
3 years ago
Let s be the annual sales​ (in millions) for a particular electronic item. The value of s is 54.554.5 for 20062006. What does s​
Kobotan [32]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
If a car averages 21.8 miles per gallon, how many miles will it travel on 16 gallons of gas?
asambeis [7]

Answer: 348.8 miles on 16 gallons of gas

Step-by-step explanation:

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Since the car consumes gas at the same rate and only the amount of gas is changed, these two fractions must be equivalent. If the rate at which the car consumes gas changes, it would be different.

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7 0
2 years ago
What is the slope of (2,5) and (5,8)
murzikaleks [220]

Answer:

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Step-by-step explanation:

Slope = change in y/change in x

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6 0
4 years ago
A single-serving bag of trail mix has 10 raisins, 12 cashews, 8 peanuts, 2 Brazil nuts, 10 pumpkin seeds, and 8 dried cranberrie
EastWind [94]

Answer:

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3 0
3 years ago
Read 2 more answers
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