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guapka [62]
3 years ago
6

There are 5 blue and 20 white marbles in a box of 50 marbles. Select all the combination of marbles that add up to exactly 50% o

f the marbles in the box.
There are 5 blue and 20 white marbles in a box of 50 marbles.

Select all the combination of marbles that add up to exactly 50% of the marbles in the box.

Answer Choices

only blue


only white


white and blue


all other marbles except white and blue
Mathematics
1 answer:
azamat3 years ago
8 0
If you add the white and blue together then you have 25 and 25 is 50% of 50

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Ava, Natalie, Esraa, and Savannah are all running a race. Each girl finishes at a different time. Ava finishes the race in 12.89
gayaneshka [121]

Natalie

Step-by-step explanation:

Esraa finishes in 12.2 secons making her first.

natalie finishes in 12.34 seconds making her second.

Ava finishes in 12.89 making her third.

and Savannah finishes in 12.988 seconds making her last.

3 0
3 years ago
A rectangle ahs a long side of a length 8.5 cm its perimeter is 24cm work out the length of the shorter side
Phantasy [73]

Answer:

Width (length of shorter side) = 3.5 cm.

Step-by-step explanation:

L = 8.5 cm

perimeter, P = 24 cm

2(L+W) = 24

substitute L = 8.5

2(8.5+W) = 24

8.5 + W = 24/2 = 12

W = 12 - 8.5 = 3.5 cm

5 0
3 years ago
Christopher estimates it will take him half an hour to complete his math homework. He is able to complete it in 25 minutes. What
marin [14]

Answer:

The percent error in his estimate is<u> 16.67%</u>.

Step-by-step explanation:

Given:

Christopher estimates it will take him half an hour to complete his math homework.

He is able to complete it in 25 minutes.

Now, to find the percent error  in his estimate.

Time estimates of completing homework = 30 minutes.

Time actual taken to complete homework = 25 minutes.

Error in estimate = Time estimates of completing homework - Time actual taken to complete homework.

Error in estimate = 30 minutes - 25 minutes.

Error in estimate = 5 minutes.

Now, to get the percent error:

Percent\ error =\frac{Error\ in\ estimate}{Time\ estimates\ of\ completing\ homework} \times 100.

Percent\ error=\frac{5}{30} \times 100

Percent\ error=\frac{500}{30}

Percent\ error=16.67\%.

Therefore, the percent error in his estimate is 16.67%.

6 0
3 years ago
Find the distance CD rounded to the nearest tenth C=(5,6) D=(2,2)
Dmitriy789 [7]
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3 0
3 years ago
Circles M and K are congruent,arc QR is congruent to arc LN and arc OP is congruent to arc VW find y
Sladkaya [172]
The answer is -5. Just plug in -5 to check and x will equal 3.
3 0
3 years ago
Read 2 more answers
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