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RSB [31]
3 years ago
14

Thirty students have planned picnic. The ratio of girls to boys is 3 : 7. How many boys are there?

Mathematics
2 answers:
noname [10]3 years ago
7 0
10 i think sorry if its worng
marshall27 [118]3 years ago
5 0

Answer:

10

Step-by-step explanation:

10

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Write 6 as a fraction with 3 in the denominator
tekilochka [14]
To find the correct fraction, multiply 6 by 3.
This gives you 18. Therefore the fraction is 18/3
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6 0
2 years ago
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Please help me with this 20 points
JulsSmile [24]

Answer:

A  4/605

Step-by-step explanation:

mathematics = 11 letters

P(m) = number of m's/total = 2/11

we replace it so we have  mathematics = 11 letters

P(s) = number of s's/total = 1/11

not replacing it

we replace it so we have  mathematic = 10 letters

P(vowel) = number of vowel/total = 4/10 = 2/5

P(m, replace,s, no replace, vowel) = 2/11*  1/11 * 2/5 =  4/605

3 0
3 years ago
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Explain me step by step plz​
OlgaM077 [116]

Answer:

28

Step-by-step explanation:

We know that the heights and bases of all of the parallelograms will be the same because they are equal, therefore, since the height of 2 parallelograms is 14, the height of one parallelogram is 14 / 2 = 7. Since the areas of all of the parallelograms are congruent, the area of one parallelogram is 308 / 4 = 77. The parallelogram area formula is A = bh where A, b and h are area, base and height respectively and we know both the area and height so we need to solve for b. Doing so we get 77 = b * 7 so that means b = 11. The length of y is two bases + 6 and since we know the base is 11, y = 11 * 2 + 6 = 22 + 6 = 28.

7 0
3 years ago
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Help me please help if know what the answer please?!!?!??faster
Fiesta28 [93]

Answer:

like 29%

Step-by-step explanation:

there are 4 male freshmen out of 4+6+2+2=14 total males and 4/14 is like 28.5714... and so you round

3 0
2 years ago
What is butterfly cycle​
Vedmedyk [2.9K]

The butterfly and moth develop through a process called metamorphosis. This is a Greek word that means transformation or change in shape. There are four stages in the metamorphosis of butterflies and moths: egg, larva, pupa, and adult.

mark me brainliesttt :)))

7 0
3 years ago
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