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Alik [6]
3 years ago
13

Calvin has 13 coins , all of which are quarters and nickels. The coins are worth $2.45. How many of each coin does Calvin have ?

Mathematics
1 answer:
zalisa [80]3 years ago
6 0

Answer:

Step-by-step explanation:

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What are the multiples of 4
N76 [4]
1 and 2 are the factors its a compatable number
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I need number 1 please and thank you
belka [17]

Answer:

It is the third one because of formula I² + 2I*II + II²

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4 0
3 years ago
If the length of a leg of a triangle is 39.2 and the area of the triangle is 63 what is the length of the other leg
Nadya [2.5K]

Answer:

The length of the other leg is 3.21\ units

Step-by-step explanation:

I will assume that the triangle is a right triangle

In a right triangle the legs are perpendicular

so

The area of a right triangle is equal to

A=\frac{1}{2}(a)(b)

where

a and b are the legs of the triangle

In this problem we have

a=39.2\ units

A=63\ units^{2}

substitute the values

63=\frac{1}{2}(39.2)(b)

126=(39.2)(b)

b=126/(39.2)=3.21\ units

7 0
3 years ago
Polygon R and polygon S are similar. The perimeter of polygon R is 136 cm, and the perimeter of polygon S is 64 cm. If one side
e-lub [12.9K]

<u>Answer </u>

Option A) 17cm

<u>Explanation </u>

Polygon R and polygon S are similar. This means the polygon R and S have equal number of sides.

Step 1 : Find the number of sides of polygon S

The perimeter of polygon S is 64 cm. If one side of polygon S is 8 cm

Therefore, Number of sides of polygon S = 64/8 = 8 sides

and number of sides of polygon R = 8 side

Step 2 : Find the number of sides of polygon R

The perimeter of polygon R is 136 cm,  

Number of sides of polygon R = 136/8 = 17 cm

Therefore side length of  polygon R = 17 cm

6 0
3 years ago
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