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3 years ago

Mrs. Rivera has 248 pencils

Mathematics

1 answer:

Andre45 [30]3 years ago

8 0

Answer:
Mrs. Rivera has more pencils

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An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this seq

frez [133]

<h3>Answer: 144</h3><h3>Step-by-step explanation:</h3><h3 />

Since, the first 9 multiple of 4 starts from 0 are,

0, 4, 8, 12, 16, 20, ................

Which is an AP,

Having the first term, $a_1 = 0$

And, the successive difference, d = 4,

Since, the sum of the n term of an AP,

$S_n = \frac{n}{2}[2a + (n-1)d]$

Hence the sum of 9 term of the above AP,

$S_9 = \frac{9}{2}[2\times 0 + (9-1)\times 4]$

$S_9 = \frac{9}{2}(0 + 8\times 4)$

$S_9 = \frac{9}{2}(32)$

$S_9 = \frac{288}{2}=144$

6 0

3 years ago

-2x+6=-6 what is the answer to this promblem

leva [86]

Answer:

Step-by-step explanation:

-2x + 6 = -6

-2x = -12

x = 6

5 0

3 years ago

Read 2 more answers

K to the power of 2-2k-24

insens350 [35]

Answer:

I don’t understand what you are asking

Step-by-step explanation:

5 0

3 years ago

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Help me on this plz I need help !!

12345 [234]

Answer:

2/1

Step-by-step explanation:

x1=1 ,y1=3

x2=2 , y2=5

then

m= 5-3/2-1= 2/1

6 0

3 years ago

You pay sales tax on your purchases at the rate of 0.07. What fraction of your money is this? Remember to reduce your fraction

Gemiola [76]

Answer:

This is $\frac{7}{100}$ of your money.

Step-by-step explanation:

We have a decimal number, and we want the answer to be a fraction. To transform a decimal number into a fraction, we multiply both the numerator and the denominator by 10 until none of them have decimal parts. So

$0.07\times \frac{10}{10} = \frac{0.7}{10}\times \frac{10}{10} = \frac{7}{100}$

This is $\frac{7}{100}$ of your money.

3 0

3 years ago