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JulijaS [17]
3 years ago
8

A middle school has an oval track with the dimensions shown. What is the distance around the track? use 3.14 for π. show your wo

rk.

Mathematics
2 answers:
Alex3 years ago
7 0
I think the asnwear is 10859.94
I’m sorry if I’m wrong :{
Snezhnost [94]3 years ago
3 0

Answer:

10859.94

Step-by-step explanation:

To solve this, you need to know the formula for solving the area of a circle: πr²

The first thing you should do is find the area of the square: 78 x 78 = 6084

Then, we find the area of the circle. To do this, we must figure out the radius. Luckily, the problem states that the combined diameter of both half circles is 78, which means the radius is 39. Then, we can apply the formula: π39².

39² = 1521

1521 x 3.14 = 4775.94

This is the combined area of both half circles.

Finally, we have to add: 4775.94 + 6084 = 10859.94

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Step-by-step explanation:

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2 years ago
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Choose the best answers to complete the statements below.
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<u>Answer:</u>

245 days per year ; 1715 hours per year

<u>Step-by-step explanation:</u>

Every emplyoee  works 5 days per week , 49 weeks per year. So,

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5 \times 49 days  = 245 days per year .

Every employee works  7 hours per day,

so, every employee works  7 \times 245 hours

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5 0
3 years ago
An art teacher has a jar containing b buttons to distribute to her class for a project. In order to give each in the class 6 but
Nastasia [14]

Answer:

22

Step-by-step explanation:

Given:

An art teacher has the total number of buttons = b

1. In order to give each in the class 6 buttons, she will need 18 more buttons.

2. If she gives each child 5 buttons, she will have 4 left over.

Question asked:

How many children are in the class ?

Solution:

<u>Let total number of children in the class = </u>x

<u><em>As given that, 18 more buttons will be needed to give 6 buttons to each.</em></u>

The equation will be:-

b+18=6x\\b-6x=-18\ (equation\ 1)

<em><u>Also given that, If she gives 5 buttons to each, she will have 4 left over.</u></em>

The equation will be:-

b-5x=4\ (equation\ 2)

Subtraction equation 2 from 1

b-6x-(b-5x)=-18-4\\b-6x-b+5x=-22\\-6x+5x=-22\\-x=-22\\Minus\ canceled\ by\ minus\\x=22

Hence, total number of children are 22.

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4 years ago
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i hope it helps mark me brainliest

Step-by-step explanation:

it is Parallelogram

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Step-by-step explanation:

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