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Alexxx [7]
3 years ago
13

if the ratio of boys to girls in a class is 5-13 what is the ratio of girls to all the students in the class

Mathematics
1 answer:
enyata [817]3 years ago
3 0

Answer:

supposing there are only 18 students, Im guessing the ratio would be 12-18?

Step-by-step explanation:

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Step-by-step explanation:

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(JUSTIFY)The diameter of a wheel is 15 inches. How far would your hand move in one full turn of the wheel if you do not let go o
Elanso [62]
So,

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4 0
3 years ago
Sam has 13 1/2 yards of ribbon.He cuts the ribbon into pieces that measure 3/4 yard. What is the maximum number of pieces of rib
Dominik [7]

Answer:

18

Step-by-step explanation:

Number of pieces = Length of ribbon/Length of each piece

                              = (13½) ÷ (¾)

Convert the mixed number to an improper fraction

No. = (²⁷/₂) ÷ (¾)

Invert the proper fraction and change division to multiplication

No. = ²⁷/₂ × ⁴/₃

Cancel the 2s

No. = 27 × ⅔

Cancel the 3s

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Sam can cut 18 pieces of ribbon.

8 0
4 years ago
A grocery sold 5kg of wheat flour at Rs30 per kg and gained 20%. If he had sold it at Rs27 per kg, what would be his gain or los
maria [59]

Answer:

His gain percent would have been 8%

Step-by-step explanation:

The key to answering this question is to first calculate the price at which the wheat flour was bought.

Mathematically;

% profit = (selling price-cost price)/cost price * 100%

Let the cost price be $x

Thus;

% profit = (30-x)/x * 100

20 = 100(30-x)/x

20x = 3000-100x

100x + 20x = 3000

120x = 3000

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So let’s assume he sold at Rs 27

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His gain or loss percentage would’ve been;

2/25 * 100/1 = 200/25 = 8% (gain, since selling price is greater than the cost price)

3 0
3 years ago
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