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3 years ago

Please help me i’m am struggling hard on these questions !!!!

Mathematics

2 answers:

pochemuha3 years ago

8 0

Answer:

5. 6.

4 boys 8 boys 16 tires 4 tires

----------- = -------------- ---------------- = ---------------

7 girls 14 girls 4 cars 1 car

7. 8.

8 correct 40 correct 16 pearls 8 pearls

-------------- = ----------------- -------------- = --------------

10 total 50 total 20 opals 10 opals

9. 10 .

32 pencils 8 pencils 7 balls 21 balls

---------------- = ---------------- ------------- = -------------

8 erasers 2 erasers 9 bats 27 bats

neonofarm [45]3 years ago

4 0

Answer:

5. 14

6. 8

7. 40

8. 10

9. 2

10. 21

Step-by-step explanation:

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Effectus [21]

Circumference = 2pi*r

If 12pi = 2pi * r,

r = 6

So area is pi * 6^2 = 36pi

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3 years ago

660 divided by 15 is the same as?

djyliett [7]

Answer:

Step-by-step explanation:

Just divide 660 by 15 to get 44.

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3 years ago

Math Write the number 63 in four different ways.

Rina8888 [55]

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4 years ago

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Simple interest question i need help with

alexdok [17]

Answer:

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4 0

4 years ago

The sum of the roots of 8x^2- 2x

Andrews [41]

Answer:

1/4

Step-by-step explanation:

To find the roots of the expression, factor the expression by GCF.

$8x^2 - 2x\\2x(4x-1)$

The roots are the factors set equal to 0 and solved for x.

2x = 0

x=0

4x-1 = 0

x = 1/4

The sum is the addition of the two roots 0 + 1/4 = 1/4

8 0

3 years ago