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Tanzania [10]
2 years ago
8

Marcela finished the race in 75.8 minutes. Rebecca finished the race in 8.1/2 minutes faster then Marcela. How many minutes did

it take Rebecca to finish the race?
Mathematics
1 answer:
Bond [772]2 years ago
5 0

Answer: 67.3

Step-by-step explanation:

turn the "\frac{1}{2}" into .5 and substract

75.8

-  8.5

----------

67.3

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Given the following information, determine if one of the brands is a better buy. Brand A: 14 ounces for $44. 66 Brand B: 20 ounc
maksim [4K]

Division is one of the basic mathematical operations. The cost of Brand A and B is the same.

<h3>What is division?</h3>

The division is one of the most basic arithmetic operations. It is used to find the number of times a number is been added to itself.

Given to us

Brand A: 14 ounces for $44.66

Brand B: 20 ounces for $63.80

To compare the two brands we will find the cost of one ounce for each brand.

For Brand A,

The cost of 14 ounces is $44.66, therefore,

\text{Cost of one ounce} = \dfrac{\$44.66}{14}\\\\\text{Cost of one ounce} = \$3.19

For Brand B,

The cost of 20 ounces is $63.80, therefore,

\text{Cost of one ounce} = \dfrac{\$63.80}{20}\\\\\text{Cost of one ounce} = \$3.19

From the above two values, we can conclude that the cost of Brand A and B is the same.

Learn more about Division:

brainly.com/question/369266

4 0
2 years ago
-3(4x-8.2)&lt; -11.98x + 14 3 /4
Leona [35]
The answer would be C
6 0
3 years ago
Which of the following represents the average rate of change of the function f(x) = 2x - 3
mr Goodwill [35]

Average rate of change, Correct Answer is (0,-3)

5 0
3 years ago
If the length of two sides of a triangle are 7 and 10 the length of the third side may be?
JulijaS [17]
The answer you need is C)
7 0
3 years ago
Find the measurements of DBC
Fiesta28 [93]

Answer:

72 degrees

Step-by-step explanation:

To determine the value of DBC, we first have to determine the value of q

Angle on a straight line = 180 degrees

7q - 46 + 3q + 6 = 180

10q - 40 = 180

collect like terms

10q = 180 + 40

10q = 220

q = 22

Substitute for q in angle dbc

3(22) + 6 = 72 degrees

8 0
3 years ago
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