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labwork [276]
3 years ago
12

In the school gym, the ratio of the number of boys to the number of girls was 4:3. After 160 boys left the gym, the ratio became

4:5. How many girls were there in the gym?
Mathematics
1 answer:
Soloha48 [4]3 years ago
8 0
62 girls I think lmaohlmaohhsjsbusbusbsjshdhbsusshdvwlhz
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Which of these expressions represents the sum of two rational numbers being rational?
GaryK [48]

Answer:

i think its number 2 hope its correct

3 0
3 years ago
Estimate the area of the irregular shape. Explain your method and show your work
shepuryov [24]

Answer:

20 cm2 is the answer brooooooooooo

8 0
2 years ago
What is this answer???
wlad13 [49]

Answer:

∠ ABC = 116°

Step-by-step explanation:

Since the angles are supplementary, they sum to 180° , that is

8x - 36 + 4x - 12 = 180

12x - 48 = 180 ( add 48 to both sides )

12x = 228 ( divide both sides by 12 )

x = 19

Then

∠ ABC = 8x - 36 = 8(19) - 36 = 152 - 36 = 116°

5 0
2 years ago
HELP I NEED HELP ASAP
pickupchik [31]

Answer:

D

Step-by-step explanation:

Firstly, the question is phrased very very badly as the four answers provided are coordinate points rather than how far apart the cities are in units.

To calculate the distance between two points, we have to use Pythagoras' Theorem as it's just pretty much a right-angle triangle. Please look at the (terribly drawn) image provided.

Keep in mind that these points are only roughly placed on the map.

But firstly, to use Pythagoras' Theorem (a^2 + b^2 = c^2), we must find the length of the two sides.

To find the length of the horizontal line (which from now on I'll refer to as 'a'), we must subtract the smaller x value from the larger one.

47 - 35 = 12

To find the length of the vertical line (which from now on I'll refer to as 'b'), we must subtract the smaller y value from the larger one.

122 - 78 = 44

I assume that the answer you should pick is D. (12, 44)

However, that doesn't exactly answer the question... it's worded a little weirdly.

To solve the rest of the equation, do the following:

Now that we know that the length of a = 12 and the length of b = 44, we can use Pythagoras' Theorem.

a^2 + b^2 = c^2

12^2 + 44^2 = c^2

144 + 1936 = c^2

2080 = c^2

c = \sqrt{2080}

c = 45.61

The answer is 45.61 units.

3 0
2 years ago
convert the repeating decimal to an improper fraction or mixed number. Include your work in your final anwser 152
Nezavi [6.7K]
If you mean .152 bar as in .152152152.....then let x=.152 then:

1000x-x=152.152-.152

999x=152

x=152/999  (this cannot be reduced any further as they have no common primes)
8 0
3 years ago
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