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4 years ago

Does anyone know this? Please help

Mathematics

2 answers:

Natalija [7]4 years ago

8 0

The answer is A. Range

Nesterboy [21]4 years ago

5 0

A. Range would be your answer

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devlian [24]

Answer: 1.0754

Step-by-step explanation:

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3 years ago

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I NEED HELP PLS I WILL GIVE U POINTS

Ainat [17]

Answer:

0.5

Step-by-step explanation:

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3 years ago

Solve using double substitution y=x-7 y=-2x+8

Ivenika [448]

Answer:

(5, -2)

Step-by-step explanation:

x - 7 = -2x + 8

add 2x to both sides

x - 7 + 2x = -2x + 8 + 2x

3x - 7 = 8

Add 7 to both sides

3x - 7 + 7 = 8 + 7

3x = 15

x = 5

y = 5 - 7

y = -2

Solution (5, -2)

8 0

3 years ago

What did they do wrong

Evgen [1.6K]

Add 4 they were supposed to subtract 4. The subtraction sign is actually represented as a negative 2x. I think..

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3 years ago

Examine this system of equations. Which numbers can be multiplied by each equation so that when the two equations are added toge

podryga [215]

Answer:

18 times the first equation and 8 times the second equation

Step-by-step explanation:

we have

$\frac{1}{4}x-\frac{1}{6}y=5$ ------> first equation

$\frac{4}{5}x+\frac{3}{8}y=10$ ------> second equation

step 1

Multiply the second equation by 8 both sides to remove the fraction in the variable y

$8(\frac{4}{5}x+\frac{3}{8}y)=10(8)$

$\frac{32}{5}x+3y=80$

step 2

Multiply the first equation by 18 both sides to obtain the coefficient -3 in the variable y

$18(\frac{1}{4}x-\frac{1}{6}y)=5(18)$

$\frac{18}{4}x-3y=90$

step 3

Adds the new equation 1 and equation 2

$\frac{18}{4}x-3y=90\\\\ \frac{32}{5}x+3y=80\\ -------$

The y-term is eliminated

therefore

The answer is

18 times the first equation and 8 times the second equation

3 0

4 years ago