Leticia completed 15% more questions than carmen
Answer:
Find out the numbers .
To prove
Let us assume that one number be x.
Let us assume that second number be y.
As given
The sum of two numbers is 30.
Than the equation becomes
x + y = 30
Their difference is 6.
x - y = 6
Thus two equation are .
x + y = 30 and x - y = 6
Subtracted x - y = 6 from x + y = 30
x - x + y - (-y) = 30 - 6
y + y = 24
2y = 24

y = 12
Put in the x - y = 6
x - 12 = 6
x = 6 + 12
x = 18
Therefore the two numbers are 12 and 18 .
Answer:
A
Step-by-step explanation:
Given:

Simplify by distributing:

Add 10 to left side and add 3x to the right side:

85% liked => 15% didn't like
30 = 15% of x
30 = 0.15 x => x = 30 / 0.15 = 200. This is the total number of students at the library.
Then 200 - 30 = 170 is the number of students whom did like reading mistery stories.
Answer: 170.
Answer:
Step-by-step explanation:
Inequality would be: 22 + 17x ≤ 80
Where, x = Number of shirts, that he can buy
Solving: 17x ≤ 58
x ≤ 58/17
x ≤ 3.41
In short, He can buy 3 shirts only.
Hope this helps!