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Margaret [11]
2 years ago
9

Anthony receives $12 in allowance every week.He currently has $492 saved.How many weeks has he been saving?

Mathematics
1 answer:
Rufina [12.5K]2 years ago
7 0

Answer:

He has been saving for 41 weeks.

Step-by-step explanation:

492 is the total, we need to divide 492 by 12 to get how many weeks, 41 is the answer

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Find the sum of the arithmetic sequence. 5,7,9,11,...,23
eduard

Answer:

140

Step-by-step explanation:

The arithmetic series is 5, 7, 9, 11, ........., 23.

First u have to determine the no. of terms that can be done by using

Tₙ = [a + (n - 1)d]

Tₙ-------nth term

a---------first term

n---------no.of terms in the series

d---------common difference

here a = 5,d = 2.

let it contain n terms Tₙ= [a + (n-1)d]

Substitute Tₙ, a, and d in the equation

23 = 5 + (n - 1)2

Subtract 5 from each side.

18 = (n-1)2

Divide each side by 2

(n - 1) = 9

Add 1 to each side

n = 9 + 1 = 10

The sum of the arithmetic sequence formula: Sₙ= (n/2)[2a+(n-1)d]

Substitute Sₙ, a, n and d in the equation

Sₙ= (10/2)[2(5) + (10-1)2]

Sₙ= (5)[10 + (9)2]

Sₙ= 5[10 + 18]

Sₙ= 5[28] = 140

Therefore the sum of the arithmetic sequence is 140.

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2 years ago
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3 years ago
Answer this question ​
lutik1710 [3]

Answer:

Step-by-step explanation:

1. Eggs are sold at a price of P 105.00 per dozen.

Rate = \frac{1}{105}

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Rate at which each carpenter works = \frac{4}{3} = 1\frac{1}{3} days

This shows that each carpenter worked for an average of 1.3333 days to complete the job.

3. Five tickets are sold at P 600.00

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4. The dollar's rate is P 52.00.

This implies that;

1 dollar = P 52.00

dollar rate = \frac{1}{52}

5. The ratio of water to milk in the recipe is 1 to 4.

This implies that to 1 measure of water, 4 measures of milk is used in the recipe.

rate = \frac{1}{4}

5 0
2 years ago
PLEASE HELP ME I WILL MAKE YOU BRAINLYEST<br> solve <br><br> y^2-100=0
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Answer:

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Step-by-step explanation:

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4 0
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Answer:

true

Step-by-step explanation:

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