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kiruha [24]
1 year ago
10

John spent 30 minutes developing an estimate for a job. The job itself took 2 hours, 45 minutes to

Mathematics
1 answer:
kicyunya [14]1 year ago
6 0

Answer:

Ratio is 11 : 13

Step-by-step explanation:

We are given;

Time to develop estimate = 30 minutes

Time to do the job = 2 hours 45 minutes = (2 * 60) + 45 = 165 minutes

Total time to develop and do job = 165 + 30 = 195 minutes

Thus;

Ratio of time spent on job to total time = 165 : 195

Whrn this is broken further, we have; 11 : 13

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Section 208 of nassau veterans Memorial Coliseum has 17 rows. The first row has 13 seats in it. If you add two seats to the prev
STatiana [176]
Row 15 has 41 seats, and the entire section has 493 seats.

We can write the explicit formula for an arithmetic sequence to represent this, since we add 2 each time:

13+2(n-1)

Using 15 for n,
13+2(15-1) = 13+2(14) = 13+28 = 41

To find the total number of seats, we evaluate the sum
\Sigma_{n=1}^{17} 13+2(n-1)

Using technology to evaluate this sum, it is 493.
8 0
3 years ago
What is organic fertilizer?​
chubhunter [2.5K]

Answer:

Organic fertilizer are fertilizers derived or gotten from animal matter, animal excrete, human excrete and vegetable matter. E.g- compost and crop residues. Natural occurring fertilizer include

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3 0
3 years ago
Weiming receives a weekly pocket money of $28. If he decides to save 20% of it, find his saving in a year and spendings in a yea
Maru [420]

Welming's spending is $1164.8 and his savings is $291.2

<h3>How to determine the savings and the spending?</h3>

The given parameters are:

Weekly pocket = $28

Save = 20%

There are 52 weeks in a year.

So, the yearly pocket is:

Yearly pocket = $28 * 52

Evaluate

Yearly pocket = $1456

He saves 20%.

So, we have:

Savings = 20% * $1456

Evaluate

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His spending is then calculated as:

Spending = $1456 - $291.2

Evaluate

Spending = $1164.8

Hence, Welming's spending is $1164.8 and his savings is $291.2

Read more about percentage at:

brainly.com/question/843074

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7 0
2 years ago
Calculate the size of angle B with working I WILL MARK YOU AS BRAINLIEST
Alenkinab [10]

Answer:

Step-by-step explanation:in a regular pentagon all angles are equal that means one of the triangles angle is 180-108=72

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3 years ago
quinten is making bread and wants to triple the recipe. the recipe calls for 2/3 cup of sugar. how much sugar will he need
Black_prince [1.1K]
He needs 2 cups of sugar if he's tripling the recipe.
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3 years ago
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