3 years ago

Circle o has a circumference of 42 pi

1 answer:

4 0

Look at the attached picture⤴

Hope this will help u...

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Help help help math math math

musickatia [10]

Step-by-step explanation:

X-3=15

Make X the subject of the formular by transferring the number with co-efficients in one side if the equation.

X=15+3

X=18

4 0

2 years ago

The piano measures 19/4 ft long, she has a 5 ft space.does she have enough room

trasher [3.6K]

She has more than enough space because 19/4 as a mixed number is 4 3/4. The piano will fit in the 5 ft. space. To find out how to make 19/4 a mixed number, you divide the 4 into the 9 and you put the remainder over the divisor.

5 0

4 years ago

the strength of students in a school when increased by 8% becomes 2160. find the original strength of students in the school.

Leni [432]

Answer:

1987.2

Step-by-step explanation:

We can write a proportion to find the total amount in the choir using the information given. A proportion is two equivalent ratios set equal to each other. Since we know the strength of students increased by 8% to 2160 then the original was 92%.

$\frac{92}{100}=\frac{y}{2160}$

We will cross multiply the numerator of one ratio with denominator of the other. And then solve for y.

92(2160)=100(y)

198720=100y

y=1987.2

There are 1987.2 as the original strength of students.

6 0

3 years ago

The formula for the area of a triangle Is A = -bh, in which b represents the length of the base and h

Ira Lisetskai [31]

Step-by-step explanation:

something went very wrong with the problem description.

the area of a triangle is

base × height / 2

so, we know the area, and we know the height.

therefore

470 = base × 20 / 2 = base × 10

base = 470/10 = 47 mm

8 0

3 years ago

For the <img src="https://tex.z-dn.net/?f=45%5Clarge%20%5E%5Ccirc%2C%2045%5Clarge%20%5E%5Ccirc%2C%2090%5Clarge%20%5E%5Ccirc" id=

blondinia [14]

A-owowowowwqzlzlz +eiwiiwiwow

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3 years ago