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Elina [12.6K]
3 years ago
15

Which is a good comparison of the estimated sum and the actual sum of 7 7\8 + 2 11\12

Mathematics
2 answers:
navik [9.2K]3 years ago
6 0
Estimate: 8+3 or 11.
Actual Sum: 10 76/96 or 10 19/24
sasho [114]3 years ago
3 0
Seven and seven eighths rounds up to eight. Two and eleven twelfths rounds to three. Estimate equation: 8+3=11. Now you know your answer should be around 11. Then to find your actual answer you have to find the common denominator! If u need anymore help ask me! Hope I helped!
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PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!<br> Please also show with work!
slavikrds [6]

Answer:

66cm²

Step-by-step explanation:

Okay so lets start by breaking this down and writing a smiple equation to find the area.

We know that the N's are the same size. To make it easier we can turn them to a square/rectangle. I think it would be easist to move the bottem N's to the top. (look at the pic attached to see what i mean)

Lets start by finding the area of the top rectangle. We need to divide 8 by 2 to find the height.

a = b * h

a = 12 * 4 = 48(area of top rectangle)

a(of m) = 4.5 * 4 = 18

area of the whole thing:

a = 48 + 18 = 66

7 0
3 years ago
The round wading pool at the Greenville Community Center has a diameter of 8 feet. What is the pool's circumference? use 3.14 fo
HACTEHA [7]

The circumference of pool is 25.12 feet

<em><u>Solution:</u></em>

Given that round wading pool at the Greenville Community Center has a diameter of 8 feet

Therefore,

Diameter = 8 feet

We know that,

Radius = \frac{diameter}{2}\\\\Radius = \frac{8}{2}\\\\Radius = 4

Thus radius is 4 feet

<em><u>The circumference of circle is given by formula:</u></em>

C = 2 \pi r

Where, "r" is the radius of circle

Substitute r = 4

C = 2 \times 3.14 \times 4\\\\C = 25.12

Thus circumference of pool is 25.12 feet

7 0
3 years ago
At a theme park, the ticket price for children is c for adults is $17 more than that. Write an expression to show the cost of ti
aev [14]

Answer:

Cost is 7c+34.

Step-by-step explanation:

2(c+17) + 5c

=2c+34+5c

=7c+34

6 0
3 years ago
You need to get to class, 200 meters away, and you can only walk in the hallways at about 1.5 m/s. (if you run any faster, you’l
RUDIKE [14]

Answer:

Time = 133.3 secs

Step-by-step explanation:

<u><em>Speed = Distance / Time</em></u>

<em>Rearranging the formula</em>

Time = Distance / Speed

Where D = 200 m , S = 1.5 m/s

Time = 200 / 1.5

Time = 133.3 secs

6 0
4 years ago
Read 2 more answers
The average cost per unit C(x), in dollars, to produce x units of toy cars is given by C(x)=(8000)/(x−50)C(x)=(8000)/(x−50). Wha
podryga [215]
C(x)= \frac{8000}{x-50}

gives an average cost per unit, if we want to produce x of them.

So for example, we want to produce 500 toy cars for our store, and we need a price per unit (per 1 toy car). What we do is we calculate C(500). 

So to calculate the cost of one unit when producing 1250, we calculate C(1250)
 
C(1250)= \frac{8000}{1250-50}= \frac{8000}{1200}=6.67 $ is the cost of 1 toy car.

Answer
4 0
3 years ago
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