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3 years ago

Is (7,-2) a solution to the equation x - 4y = 15? Please show work to help me understand.

Mathematics

1 answer:

grin007 [14]3 years ago

8 0

Answer:

yes

Step-by-step explanation:

x - 4y = 15

Substitute the point into the equation and see if the equation is true

7 -4(-2) = 15

7+8 = 15

15 =15

This is true so the point is a solution to the equation

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forsale [732]

She would take about 9 days to make 1000 cranes
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4 years ago

11. Make Sense and Persevere The sum of four

marusya05 [52]

Answer:

-3

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3 years ago

Read 2 more answers

Find the slope of the graph and the unit rate

Lilit [14]

Answer:

For the 1st graph

Slope = $\frac{6}{10}$

Unit rate = $0.6$ mi/h

For the 2nd graph

Slope = $\frac{9}{4}$

Unit rate = $2.25$ mi/h=

Step-by-step explanation:

For the 1st graph

Slope is given as $\frac{Rise}{Run}$

Rise = $(6-0) = 6$

Run = $(10-0) = 10$

Therefore,

Slope = $\frac{6}{10}$

Unit rate = $\frac{6}{10}$

= $0.6$ mi/h

For the 2nd graph

Rise = $(9-0) = 6$

Run = $(4-0) = 10$

Therefore,

Slope = $\frac{9}{4}$

Unit rate = $\frac{9}{4}$

= $2.25$ mi/h

7 0

3 years ago

Evaluate the expression 3+ [5(2-3) - 6]

iragen [17]

Answer:

Answer is below

Step-by-step explanation:

3+5(2−3)−6

=3+(5)(−1)−6

=3+−5−6

=3+−11

=−8

So therefore, your answer would be -8

8 0

3 years ago

Read 2 more answers

Help me please Thanks yall

Tomtit [17]

Solution: x = 1

x - 0 = 2x + 4x - 5

combine the liked terms: x = 6x - 5

subtract 6x from both sides of the equation and you get x = 1

5 0

3 years ago