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WITCHER [35]
3 years ago
14

Reasoning Solve the system of linear equations using substitution. Use pencil and paper. Which

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
5 0

Answer:

Since the first equation x is equal to 4y - 9, it is easier to substitute 4y - 9 in for x in the second equation.

x = -1    y = 2

Step-by-step explanation:

Since the first equation x is equal to 4y - 9, it is easier to substitute 4y - 9 in for x in the second equation.  That would give you

4y - 9 + 4y = 7

8y - 9 = 7

8y = 16

y = 2

x = 4y - 9 = 4(2) - 9 = 8 - 9 = -1

It is always a good idea  to check and see if your results satisfy the two equations

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enot [183]

I believe it would be negative 9 because your subtracting by twelve again. I hope that helped

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3 years ago
As you were organizing your closet you counted 20 shirts and 12 pairs of pants what was the pants to shirt ratio?
NISA [10]

Answer: 5 : 3

Step-by-step explanation:

The ratio of shirts to pants can be shown by putting the number if shirts and pants in the following manner:

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Then you have to take this to the lowest term. 4 is a factor of both numbers so when divided by 4 we get:

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4 0
3 years ago
Andre notices that he is a little taller than Lin but is shorter than their math teacher, who is 164 centimeters tall. Write two
Ugo [173]

Answer:

Andre's height:  y < x < 164

Step-by-step explanation:

We will first of all convert each of the statements to mathematical inequalities, before we combine them.

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x<164

Combining the two inequalities, we have Andre's height as

y < x < 164

This means that Lin is shorter than Andre who is in turn shorter than the Maths Teacher.

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3 years ago
The table shows the data of a random sample of fish that were collected from and later released into a lake.
BlackZzzverrR [31]
The answer is a  thank u
7 0
3 years ago
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