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tatyana61 [14]
3 years ago
6

PLEASE HELP 7TH GRADE MATH

Mathematics
1 answer:
Rom4ik [11]3 years ago
6 0

Answer:

2\pi \times r

1. 2×3.14×80

=502.4 m

4. 90 pound on Earth weighs 34 pounds on Mars.

If it weighs 135 pounds on earth, it will weigh x pounds on Mars

=90×=135×34

=90x=4590

=x=4590÷90

x=51 pounds

So therefore it weighs 51 pounds on Mars.

Step-by-step explanation:

in question 4 you have to cross multiply

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Can some one help thanks
kozerog [31]

Answer:

y = 8

Step-by-step explanation:

First substitute x with 6 in the equation

2y + 1/3(6) = 18

Multiple 1/3 with 6, which is 2

2y + 2 = 18

Solve the equation by subtracting 2 from both sides

2y + 2 = 18

    - 2     - 2

You get 2y = 16, so you divide 2 frm both sides

You get y = 8

4 0
3 years ago
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melisa1 [442]

Answer:

6.6

Step-by-step explanation:

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3 years ago
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stiks02 [169]

Answer:

26

Step-by-step explanation:

Pythagorean Theorem and Radius used

24^2 + 10^2 = 676

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3 0
3 years ago
Daniela sells handmade purses for $22. She
Evgen [1.6K]

Answer:

6 purses

Step-by-step explanation

1. Subtract 71 from 161 as that's how much Daniela needs to make to have 161, which is 90

2. Divide 15 by 90 as 15 is the profit, so the answer would be the amount of purses she needs to sell, then you get 6

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6 times 15, 90

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5 0
3 years ago
How could you change the equation from 5x+2=5x+5 so it has infinitely many solutions?
Ganezh [65]

I'm working on the same thing right now and I'm using every resource in my hands right now to find a solution. I will edit this post when I have more. If you need any more help I have completed the previous activity and most of this one.

EDIT:

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I put EVERYTHING for this assignment in comments down below. Geez all of this for 5 freakin points.

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