7.5 divided by 1.5 is 5 so there are 5 lifeguards throughout the day.
Answer:
m=9/7
Step-by-step explanation
I dont think its right but i hope it helps!
We are given :
Let's find the percent increase with the help of formula:
Step-by-step explanation:
Simplifying
3x + -28 + 3x + -30 + x = 33
Reorder the terms:
-28 + -30 + 3x + 3x + x = 33
Combine like terms: -28 + -30 = -58
-58 + 3x + 3x + x = 33
Combine like terms: 3x + 3x = 6x
-58 + 6x + x = 33
Combine like terms: 6x + x = 7x
-58 + 7x = 33
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '58' to each side of the equation.
-58 + 58 + 7x = 33 + 58
Combine like terms: -58 + 58 = 0
0 + 7x = 33 + 58
7x = 33 + 58
Combine like terms: 33 + 58 = 91
7x = 91
Divide each side by '7'.
x = 13
Simplifying
x = 13
AnswerSolving
-58 + 7x = 33
A. -7/2
(1/4)^x+1=31
x+1=(-1/2)logbase2(31)-1
x=(-1/2)logbase2(31)-1
x=-3.5 or -7/2