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3 years ago

Plz, answer. Will mark brainiest. Please! 50 points!!!

Mathematics

2 answers:

igor_vitrenko [27]3 years ago

8 0

Answer:

12%

Step-by-step explanation:

Rzqust [24]3 years ago

5 0

Answer:

12%

(12ish at least, I don't know if this problem requires the exact decimal.)

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Find the solution of this system of equations 10x-7y=-1 and -2x-7y=-25

Sergio039 [100]

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}10x-7y=-1\\-2x-7y=-25&\text{change the signs}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}10x-7y=-1\\2x+7y=25\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad12x=24\qquad\text{divide both sides by 12}\\.\qquad x=2\\\\\text{Put it to the second equation}\\2(2)+7y=25\\4+7y=25\qquad\text{subtract 4 from both sides}\\7y=21\qquad\text{divide both sides by 7}\\y=3$

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3 years ago

Dion ran 3.75 kilometers each day to prepare for a race. What was the number of kilometers that Dion ran during 28 days?

Ann [662]

Answer:

Dion ran 105 kilometers in 28 days.

Step-by-step explanation:

3.75*28= 105

Dion ran 105 kilometers in 28 days.

6 0

3 years ago

Read 2 more answers

Solve the equation <br>8(4- x) = 7x + 2<br>x=

Jet001 [13]

Answer: x=2

Step-by-step explanation:

Expand.

32−8x=7x+2

Add 8x to both sides.

32=7x+2+8x

Simplify 7x+2+8x7x+2+8x to 15x+215x+2.

32=15x+2

Subtract 22 from both sides.

32−2=15x

Simplify 32−2 to 30.

30=15x

Divide both sides by 15.

30/15=x

Simplify 30/15 to 2

2=x

Switch sides.

x=2

7 0

3 years ago

What angles are they

Doss [256]

Answer:

option d. vertical opposite angle

3 0

2 years ago

How long will it take Jordon to drive 600 miles

Anit [1.1K]

Answer:

about 9.23 miles or 9 miles

Step-by-step explanation:

you divide 600 by 65

3 0

3 years ago