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rjkz [21]
2 years ago
12

Can somebody plz help answer these word prob questions plz thanks! (Grade7math( btw :)

Mathematics
1 answer:
Illusion [34]2 years ago
4 0

Answer:

3:1

8:5

Step-by-step explanation:

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james had $400 in his bank account after paying bills for 4 months his balance is now $160. what is his rate of change in dollar
aleksley [76]

Answer:

60

Step-by-step explanation:

400-160=240

240/4=60

6 0
2 years ago
A grid shows the positions of a subway stop and your house. The subway stop is located at (7, -7) and your house is located at (
Marizza181 [45]
Distance = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}
so plug in the coordinates and you will get 14.14 units 
4 0
3 years ago
Read 2 more answers
2 ft
sdas [7]

Answer:

88/7 ft = 12.6 ft (nearest tenth)

Step-by-step explanation:

Circumference of a circle = 2\pir

<u>Radius of inner circle</u>

Given:

  • circumference of inner circle = 22ft
  • \pi = 22/7

⇒ 22 = 2 x (22/7) x r

⇒ r = 3.5

So the radius of the inner circle is 3.5 ft

<u>Radius of outer circle</u>

If the distance between the inner circle and the outer circle is 2 ft, then the radius of the outer circle = 3.5 + 2 = 5.5

<u>Circumference of outer circle</u>

Therefore, circumference of outer circle:

=  2 x (22/7) x 5.5

= 242/7 ft

<u>Difference between circumferences</u>

Difference = outer circle circumference - inner circle circumference

                  = 242/7 - 22

                  = 88/7 ft

                  = 12.6 ft (nearest tenth)

4 0
2 years ago
What does it mean if am equation is equivalent to 0=0? explain.
anzhelika [568]

This means it has infinite solutions congrats. When solving algebraic equations you can find one solution, no solutions. When you have infinite solutions that means that equations has multiple things that can equal it.

7 0
3 years ago
Read 2 more answers
The answer is A right?
Sophie [7]

Answer:

C. 42

Step-by-step explanation:

<em>PEMDAS</em>

1. Parentheses: (4 + 2) = <em>6</em>

6² + 3 • 2

2. Exponents: 6² = <em>36</em>

36 + 3 • 2

3. Multiplication/Division: 3 • 2 = <em>6</em>

36 + 6

4. Addition/Subtraction: 36 + 6 = <em>42</em>

42

4 0
3 years ago
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