3 years ago

Is there any one who can do most of these questions pls and thank you

Mathematics

1 answer:

KonstantinChe [14]3 years ago

4 0

Answer:

#6 is x=9 #8 is x=-2 #10 is x=8 #12 is x=-1

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If I decline by 23%, what percent would be remaining?

egoroff_w [7]

Answer: 77%

Step-by-step explanation:

100-23=77

Hope it helps!

4 0

2 years ago

For which system of equations is (2, 2) a solution?

Eva8 [605]

Answer D.

Insert (2, 2) in for x and y in the equations.

2(2)+ 3(2) = ?
? = 10
4(2) + 5(2) = ?
? = 18

8 0

3 years ago

Solve the equation 3b1b-8=4

joja [24]

Answer:

b = 2

Step-by-step explanation:

3b1b-8 = 4

+8 +8

3b1b = 12

3b^2 = 12

/3 /3

b^2 = 4

$\sqrt{b^2}$ $\sqrt{4}$

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6 0

3 years ago

the diameter of a bike wheel is 25 inches. If the wheelmakes 20 Complete rotations, how far does the bike travel?

Iteru [2.4K]

Answer:

1571 in

Step-by-step explanation:

Given data

Diamter= 25 in

radius= 25/2= 12.5in

Circumference= 2πr

substitute

C=2*3.142*12.5

C=78.55in

In 1 revolution the bike will travel 78.55in

in 20 revolutions the bike will travel

=78.55*20

=1571 in

4 0

2 years ago

What is -2/3 divided by 1/3

Dvinal [7]

-2/3 ÷ 1/3
=(-2 × 3) / (1 × 3)
= -6/3
= -2/1
<span>= -2</span>

4 0

3 years ago