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KonstantinChe [14]
3 years ago
15

Kelly has 114 hours to complete 3 chores before leaving for soccer practice. If she spends an equal amount of time on each chore

, which of the following could Kay use to find the part of an hour each chore will require?
Mathematics
2 answers:
Ksenya-84 [330]3 years ago
8 0
She could do 1 chore in 38 hours. you could make an equation by doing 3/x=114
Leto [7]3 years ago
3 0

Answer:

5/4 times 1/3

Step-by-step explanation:

I got my answer because it said she has 1 1/4 hours to do her 3 chores and there is a mixed number in the problem so convert that mixed number to an improper and you get 5/4. Now the 3 is a whole number so we have to change that to an improper as well and that would be 3/1. Next we have to find the reciprocal of 3/1 and that would be 1/3 then you add a multiplication sign to the problem and it should look like this.

5/4 x 1/3

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Solve the math problem please
koban [17]

Answer:

Option D

Step-by-step explanation:

Collect all like terms and Calculate

-10x-7x= -17x

20-54= -34

Divide

-17x < -34

x>2

6 0
3 years ago
Read 2 more answers
PLEASE HELP I WILL MARK BRAINLIST!!
marshall27 [118]

14: \frac{1}{2} = \frac{8}{1}    \frac{x}{y} = \frac{56}{1}

56/8 = 7 so multiply 1/2 by 7/1 to get the unidentified fraction "x/y"

1/2 · 7/1 = 7/2 or 3 1/2

15.  \frac{2}{5} = \frac{x}{100}

to get from 100 to 5, you would divide by 20, so to solve for x, multiply 2 by 20, to get a product of 40.

40/100 = 40% or D

16. \frac{3}{5} = \frac{12}{x}

A

7 0
2 years ago
A seamstress uses 12 yards of fabric to make 3 costumes for students in the chorus. How many yards will she need to make costume
Step2247 [10]

Answer:

100 yards

Step-by-step explanation:

It takes 4 yards of fabric to make a costume for one student.  She needs to make costumes for every student in chorus, so you just multiply this number by 25 and get 100 yards.

7 0
3 years ago
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Please answer this with explanation. Please I really am struggling. I will mark you brainalist. Please solve it Please
Hatshy [7]

Answer:

13, 11, 4, 16, 6, 22

Step-by-step explanation:

<em>Let the second digit be x and the last digit be y</em>

Given:

  • Data set: 13, x, 4, 16, 6, y
  • Mean = 12
  • y = 2x or x = 2y

The mean of the data is the average. The average can be calculated by determining the sum of the terms and dividing it by the total digits.

\implies \text{Mean of data:} \ \dfrac{13 + x + 4 + 16 + 6 + y}{6} = 12

Let us substitute the value of y (2x) in the data.

\implies \dfrac{13 + x + 4 + 16 + 6 + 2x}{6} = 12

Now, add all the terms in the data and simplify.

\implies \dfrac{39 + x +2x}{6} = 12

\implies \dfrac{39 + 3x}{6} = 12

Distribute the denominators and simplify.

\implies \dfrac{39}{6} + \dfrac{3x}{6}  = 12

\implies  \dfrac{13}{2} + \dfrac{x}{2}  = 12

\implies  6.5 + \dfrac{x}{2}  = 12

Subtract 6.5 both sides and simplify.

\implies  6.5 + \dfrac{x}{2}  - 6.5 = 12 - 6.5

\implies \dfrac{x}{2} = 5.5

Use cross multiplication and simplify.

\implies x= 5.5 \times 2

\implies  x= 11

To determine the value of "y", simply substitute the value of "x" into the expression that represents the value of "y".

\implies y = 2x

\implies y = 2(11)

\implies y = 22

When the x and y values are substituted in the data, we get;

  • ⇒ 13, 11, 4, 16, 6, 22

Therefore, the data is 13, 11, 4, 16, 6, 22.

8 0
2 years ago
A mechanic gives a survey to all of his customers asking them to rate the quality of the service they received. He then keeps tr
sammy [17]
The answer is letter A. 
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Also, we can't say C or D because we do not have any information regarding customers who voted badly. C says that high rating make people come back, but we do not have any information on the people who voted mediocre. We can not say C. D says that customers who come back will be high rating customers. We do not know if any customers who voted low came back, so we are unable to say D. 
8 0
4 years ago
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