Step-by-step explanation:
8.05 × 10‐²
hope it helps!
It is. It's a function of the first power of a variable.
Answer:
100
Step-by-step explanation:
Original price: x
x + (7%*x) = 107.
107 is 107% of the original price
107 = 1.07x
Divide by 1.07 on both sides
x = 100
Check:
7% of 100 is 7
100 + 7 = 107
Hope this helps :)
Answer:
no
Step-by-step explanation:
Using the converse of Pythagoras' identity.
If the square of the longest side is equal to the sum of the squares of the other 2 sides then the triangle is right.
longest side = 30 , then 30² = 900
20² + 23² = 400 + 529 = 929 ≠ 900
Then the triangle is not right.
18 students are 100%-37,5%-40%=22,5%
So we know that 18 students equal to 22.5. And we are looking for the anwser what 100% of students is.
SO:
x students - 100%
(22 + 1/2)x =18×100
(22 + 1/2) can be represented as just 25.5
-//- = 1800
we need to divide bot sides by 25.5
x = 1800 / 25.5
... x = 80
