9.The formula F=9/5 C+32 can be used to convert a temperature from degrees Celsius to degree Fahrenheit. Which of the following best represents 9/5?
A.9.5
B.1.8
C.1 4/9
D.9 4/5
B
10.Mr.Cartwright bought 2 7/8 pounds of grapes for his lunches. If he paid $1.79 for each pound about how much did he pay for the grapes?
A.6
B.3
C.7
D.4
I don't know how to solve this one
11.Which set of numbers is not equivalent
A.2,6/3,2.0
B.9/3,12/4,15/5
C.5.4,5 2/5, 27/5
D.3.5,3 1/2,6/2
D
To solve question 10, we need to find the total cost of 2 7/8 pounds of grapes at $1.79 per pound.
Step 1: Convert the mixed fraction 2 7/8 to an improper fraction:
2 7/8 = (2 * 8 + 7) / 8 = 23/8
Step 2: Multiply the improper fraction by the price per pound:
23/8 * $1.79 = (23 * 1.79) / 8 = $41.17 / 8
So, Mr. Cartwright paid approximately $5.15 for the grapes.
Therefore, the answer is not provided in the options given.
To solve question 10, we need to find the total cost of the 2 7/8 pounds of grapes. We know that Mr. Cartwright paid $1.79 for each pound, so we can multiply the cost per pound by the total weight of the grapes.
To multiply a mixed number (a whole number and a fraction), we first convert the mixed number to an improper fraction.
2 7/8 can be written as (2 * 8 + 7) / 8 = 23/8
Now, we can multiply the cost per pound ($1.79) by the weight of the grapes (23/8):
1.79 * 23/8 = (1.79 * 23) / 8 = 41.17 / 8
To simplify this fraction, we can divide the numerator and denominator by their greatest common divisor, which is 1:
41.17 / 8 ≈ 5.15
Therefore, Mr. Cartwright paid approximately $5.15 for the grapes.
So, the answer to question 10 is not listed.
9 and 11 are right.
Here's the way I solved 10.
2.875 * 1.79 = 5.15
That isn't one of the answers. Please check to see if you miscopied the problem or ask your teacher about it.