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3 years ago

12

A box of chalk contains 10 pieces. how many pieces of chalk are in 40 boxes

2 answers:

Oliga [24]3 years ago

4 0

It might be 400 because you might have to multiply

Ivanshal [37]3 years ago

3 0

10 x 40 = 400 so the answer is 400 pieces of chalk.

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Jose wants to build a rectangular kennel for his dog. His dad will let him useca spot in the corner of the yard that is 12 feet

Crazy boy [7]

The answer is probably about 21 feet

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3 years ago

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The boy the apartment building is filling a pool 30 ft long 20 feet wide and 5 feet deep it has been filled 4 ft deep how many m

inn [45]

Capacity of the pool = 30 x 20 x 5 = 3000 ft³

Amount of water already filled = 30 x 20 x 4 = 2400 ft²

Amount of water needed to full the pool = 3000 - 2400 = 600 ft²

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Answer: 600 ft² of water is needed to fill up the pool.
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4 0

4 years ago

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Write an expression for the eighth partial sum of the series using summation notation

balandron [24]

Answer:

option B

Step-by-step explanation:

9/10 + 6/5 + 3/2...........

We find the difference between the terms

$\frac{6}{5} - \frac{9}{10}$

$\frac{12}{10} - \frac{9}{10} = \frac{3}{10}$

We will get the same difference when we subtract consecutive terms.

so , d= 3/10, a= 9/10

we find the formula for nth term

a_n = a+(n-1) d

$a_n = \frac{9}{10} + (n-1)\frac{3}{10}$

$a_n = \frac{9}{10} +\frac{3}{10}n-\frac{3}{10}$

$a_n = \frac{6}{10} +\frac{3}{10}n$

$a_n = \frac{3}{5} +\frac{3}{10}n$

we need to find eighth partial sum so we take n=1 to 8

sum of 8 terms ( $\frac{3}{5} +\frac{3}{10}n$ )

So option B is correct

4 0

3 years ago

Please answer quickly!! read the picture. thank you!!

Debora [2.8K]

Evet hocam proje konularını da bir insan değilim ki bir şey var ya

6 0

3 years ago

What is the value of the function y=2x−3 when x=−1 ?

san4es73 [151]

Answer: First option is correct.

Step-by-step explanation:

Since we have given that

$y=2x-3$

We need to find the value of the function .

As we have given that x= - 1

so, we substitute the value of x in y :

$y=2x-3\\\\y=2(-1)-3\\\\y=-2-3\\\\y=-5$

So, the value of the function is -5.

Hence, First option is correct.

7 0

4 years ago

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