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Cloud [144]
3 years ago
13

30 girls and boys have planned for a picnic. There is a ratio of 3 girls to 7 boys. How many boys are there?

Mathematics
2 answers:
nirvana33 [79]3 years ago
3 0
Should be 21 boys because 7+7+7 equal 21 and 3+3+3 equal 9 which equals 30
Radda [10]3 years ago
3 0
I got 21. For every 3 there was 7, so put down 3, add 7 and do such untiollyour total value is 30.
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Kari is adding a ribbon border to the edge of her kite. Two sides of the kite measure 9.5 inches each, and the other two sides m
Softa [21]
17.8 multiplied by 2 is 35.6
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Your answer should be 54.6 inches of ribbon.

Hope this helps.

8 0
3 years ago
find the area of field in a form of trapezium whose parallel sides are 10 and 12 and perpendicular distance between them is 6 me
IRISSAK [1]

Answer:

66 m²

Step-by-step explanation:

A = ½ (a + b) h

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A = 66

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4 years ago
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3 years ago
R + 12 = 86<br> what does r equal ?
AVprozaik [17]

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5 0
3 years ago
Read 2 more answers
Simplify each expression.<br> (-3)¹/₃ . (-3)¹/₃ . (-3)¹/₃
babymother [125]

The result of simplifying each number (-3)¹/₃ . (-3)¹/₃ . (-3)¹/₃  using the exponent rules is -3

To solve this exercise we have to resolve algebraic operations following the exponent rules.

(-3)¹/₃ . (-3)¹/₃ . (-3)¹/₃

Using the product rule that indicates that: the exponent result will be the addition of these exponents, we have:

(-3)¹/₃⁺ ¹/₃ ⁺ ¹/₃

(-3)³/₃

(-3)¹

-3

<h3>What is an exponent?</h3>

In mathematics an exponent is the number of time that a number, called (base) is multiplied by itself. It is also called, power or index.

Example: 3² = 3*3 = 9

Learn more about exponent at: brainly.com/question/847241

#SPJ4

4 0
2 years ago
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