8x + 38
or further simplified
x + 4.75
Answer: 90 visitors per hour
Explanation: "Per hour" means in 1 hour, so we can rewrite the given statement using fractions as <em>450 visitors/5 hours = __visitors/1 hour</em>.
To find out what goes in the bank, notice that we
have a 1 in the denominator of our second fraction.
So we want to find a fraction that is equivalent
to 450/5 that has a 1 in the denominator.
If we divide the numerator and denominator of 450/5 by 5,
we get the equivalent fraction 90/1 or <em>90 visitors/1 hour</em>.
So now we have <em>90 visitors/1 hour = __visitors/1 hour</em>.
So a 90 must go in the blank.
This means that the museum sees 90 visitors per hour.
Answer:
For question 9, the answer is B. This is because for first step, she should have done:
8(n+20) = (8*n) + (8*20)
Step-by-step explanation:
Answer:
60.
Step-by-step explanation:
As 80% of the 7th graders like hot chocolate which is equivalent to 60 people.
Answer:
x = ±5
Step-by-step explanation:
x^2-25=0
Add 25 to each side
x^2-25+25=0+25
x^2 = 25
Take the square root of each side
sqrt(x^2) = sqrt(25)
x = ±5