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2 years ago

Help please..??? =) =)

Mathematics

2 answers:

Phoenix [80]2 years ago

4 0

Answer:

1 1/4

Step-by-step explanation:

blagie [28]2 years ago

4 0

Answer:

1 1/4 hours

Step-by-step explanation:

To solve, we can divide the number of hours she has by the number of chores she has

hours/chores

She has 5 hours and 4 chores, so we can substitute those numbers in

5/4

1 1/4 or 1.25

She has 1 1/4 hours to complete each chore, so choice 3 is correct

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Consider the following system of equations. -10x2-10y2=-300 5x2+5y2=150 Which statement describes why the system has infinite so

scoundrel [369]

Answer:

The equations represent circles that result in the same graph.

Step-by-step explanation:

we have

$-10x^{2}-10y^{2}=-300$

Divide by -10 both sides

$x^{2}+y^{2}=30$ -----> equation A

This is the equation of a circle centered at origin with radius $r=\sqrt{30} \ units$

and

$5x^{2}+5y^{2}=150$

Divide by 5 both sides

$x^{2}+y^{2}=30$ -----> equation B

This is the equation of a circle centered at origin with radius $r=\sqrt{30} \ units$

equation A and equation B are equal

therefore

The system has infinite solutions, because the equations represent circles that result in the same graph.

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2 years ago

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Rina8888 [55]

Answer:

option 1

Step-by-step explanation:

(-2) (25/7)

-50/7 = -7 1/7

8 0

1 year ago

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Galina-37 [17]

Answer:

Step-by-step explanation:

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Therefore the answer is 18

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Answer:

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Step-by-step explanation:

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Answer:

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