3 years ago

Seventy weather balloons were sent up. Twenty-eight were found. What percent wer ound? 17

Mathematics

1 answer:

In-s [12.5K]3 years ago

5 0

Step-by-step explanation:

let the percent of found balloons be x

given,

total number of balloons= 70

number of found balloons= 28

according to the question,

x% of 70= 28

x/100 × 70 = 28

x=40

hence 40% of the balloons were found

You might be interested in

Which of the following is a polynomial with roots: − square root of 5 , square root of 5 , and −3?

tresset_1 [31]

Roots: - √5 , √5, and - 3

=> these are factors of the polynomial: (x + √5), (x - √5), and (x + 3).

Multiply those three factors:

(x + √5) (x - √5) ( x + 3) = [x^2 - 5] ( x + 3 ) = x^2 + 3x^2 - 5x - 15

Therefore the polynomial x^2 + 3x^2 - 5x - 15 is a polynomial with the given roots.

Answer: option B. x^3 + 3x^2 - 5x - 15

4 0

4 years ago

What postulate or theorem can be used to prove that ΔEFG ≅ ΔJHG?

OlgaM077 [116]

The answer Is C: SAS Congruence Postulate.

6 0

3 years ago

one satellite radio service charges $10 per month plus and activation fee of $20. A second service charges $11 per month plus an

Mamont248 [21]

Y=10x+20
y=11x+15
5 months

8 0

3 years ago