Which expression can be used to find 20 percent of 90

Mathematics

1 answer:

bixtya [17]3 years ago

3 0

Answer:

Step-by-step explanation:

1) 90 --- 100%

x --- 20%

x = 90*20/100 = 18

20 % = 20/100 = 0.2

20 percent (0.2) of (*) 90 = 0.2*90 = 18

You might be interested in

I have one attempt left and I will cry so please help

s344n2d4d5 [400]

Like if u say BLM .. do h say blm?

5 0

3 years ago

Read 2 more answers

one interior angle of an hexagon is 170°, and each of the remaining interior angles is equal to y° ,find the value of y.

Inessa [10]

Answer:

y = 110

Step-by-step explanation:

The formula for the sum of the interior angles of a polygon with n sides is: (n-2) x 180 degrees. A hexagon has 6 sides, so if we plug this value into the equation, we get (6-2) x 180 = 4 x 180 = 720 degrees. Since we have one angle which is 170 degrees and the other five angles are the same (y), we can make the equation 170 + 5y = 720. We subtract 170 on both sides and get the equation 5y = 550. Dividing both sides by 5, we get y = 110, which is our answer.

8 0

2 years ago

Find the value of n for which the vectors a⃗ =(3,2)a→=(3,2) and b⃗ =(9,n)b→=(9,n) are collinear.

Makovka662 [10]

Answer:

For n=6, the given vectors will be collinear.

Step-by-step explanation:

Collinear vectors are the vectors which lie on the same line or parallel lines. In order to find if two vectors are collinear, their ratio is found. If the ratio is same for all unit vectors then the vectors are collinear.

Given

$a = (a_1, a_2) = (3,2)\\b = (b_1, b_2) = (9,n)$