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uysha [10]
3 years ago
8

Find the digit that makes _ 3520 by 9

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
7 0
Remember the divisibility rule for 9. The sum of the digits of the number must be divisible by nine. 
Let the digit be x. Then x+3+5+2+0=x+10 has to be divisible by nine. Recalling that 18=9*2, we note that x=8. 
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The circumference of the inner circle is 44 ft. The distance between the inner circle and the outer circle is 3 ft. By how many
Citrus2011 [14]

Answer: 18.86 feet

Step-by-step explanation:

The formula for determining the circumference of a circle is expressed as

Circumference = πD

Where D represents the diameter of the circle.

The circumference of the inner circle is 44 ft. It means that

22/7 × D = 44

22D = 7 × 44 = 308

D = 308/22

D = 14 ft

The distance between the inner circle and the outer circle is 3 ft. This means that the diameter of the outer circle would be

14 + 3 + 3 = 20 ft

Circumference of the outer circle is

22/7 × 20 = 62.86 ft

The number of feet by which the circumference of outer circle is greater than the circumference of the inner circle is

62.86 - 44 = 18.86 feet

5 0
3 years ago
Pls solve will mark brainiest, five stars and will give a thanks
Goryan [66]

Answer:

8 times

Step-by-step explanation:

3/4 n = 6

Multiply each side by 4/3 to isolate n

4/3 * 3/4 n = 6*4/3

n = 8

8 0
3 years ago
Read 2 more answers
What is the mean (average) of these five numbers?
IRINA_888 [86]

Answer:

C. 5

Step-by-step explanation:

Mean: Numbers over amount of numbers

(2 + 4 + 5 + 6 + 8)/5

25/5

5

4 0
2 years ago
Convert 27 ounces into grams.
podryga [215]

Answer:

765.45 grams

Step-by-step explanation:

Using the hint that they gave us, we would do 27 * 28.35.

That would equate to 765.45 grams.

5 0
2 years ago
The table shows the amount of money in your savings account over a period of 6
MatroZZZ [7]

Answer: N=800/5

N=160

He needs to save $160 every week to get $800 in 5 weeks

hope this helps.

7 0
3 years ago
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