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vladimir2022 [97]
3 years ago
14

Please Help???!!! I'm a 7th grader and need help! will give 20 points!​

Mathematics
1 answer:
Ganezh [65]3 years ago
5 0

Answer:

3. d= 20mm

4. r= 8 in

5. d= 14 mi

6. r= 11 yd

Step-by-step explanation:

Radius is half of diameter.

Example:

What is the diameter of a circle with a radius of 4?

If r = 4, d = 8

Do radius times 2.

Example 2:

What is the radius of a circle with a diameter of 10?

D = 10, so r = 5

Do diameter divided by 2.

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(5x)/7 - x/14 = 9/7 solve for the unknown value this is a linear equation​
Ahat [919]

Step-by-step explanation:

\longmapsto \rm \dfrac{5x}{7} - \dfrac{x}{14} = \dfrac{9}{7} \\

\longmapsto \rm  \dfrac{10x + x}{14} = \dfrac{9}{7} \\

\longmapsto \rm  \dfrac{11x}{14} = \dfrac{9}{7} \\

→ 11x(7) = 14(9)

→ 77x = 126

→ x = 126 ÷ 77

→ x = 1.63

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3 years ago
95 points <br><br> Simplify (4^9/4^3)^5 Show your work for full credit
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Answer:

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Step-by-step explanation:

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2 years ago
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carlene has a balance of $795 in her account. She has a balance of -$70 in her checking account. What does 0 represent in this s
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Answer:

0 would represent the amount of money carlene can spend from her checking account since she has a negative amount of money she owes to the bank.

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What is the least common multiple of 8 and 18?<br> A<br> 16<br> B<br> 36<br> С<br> 72<br> D<br> 144
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Step-by-step explanation:

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Ix times a larger number is equal to the sum of a smaller number and 18. The difference of twice the larger number and the small
erma4kov [3.2K]

Answer:

6 times a larger number (so 6y) is equal (=) to the sum of a smaller number and 18 (x+18)

6y = x+18

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