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mihalych1998 [28]
3 years ago
14

Complete the work to solve for y: What is the value for y?

Mathematics
1 answer:
ollegr [7]3 years ago
5 0

Answer:

The value of y = 11/2

Step-by-step explanation:

As the work is completed up to the point

\frac{11}{5}=\frac{2}{5}y

Now completing the remaining work

\frac{11}{5}=\frac{2}{5}y

Dividing both sides by 2/5

\frac{11}{5}\div \frac{2}{5}=\frac{2}{5}y\div \frac{2}{5}

\frac{2}{5}\cdot \frac{5y}{2}=\frac{\frac{11}{5}}{\frac{2}{5}}            ∵ \mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{\frac{b}{c}}=\frac{a\cdot \:c}{b}

\frac{2y\cdot \:5}{5\cdot \:2}=\frac{\frac{11}{5}}{\frac{2}{5}}              ∵ \mathrm{Multiply\:fractions}:\quad \frac{a}{b}\cdot \frac{c}{d}=\frac{a\:\cdot \:c}{b\:\cdot \:d}

\frac{y\cdot \:5}{5}=\frac{\frac{11}{5}}{\frac{2}{5}}                ∵ \mathrm{Cancel\:the\:common\:factor:}\:2

y=\frac{\frac{11}{5}}{\frac{2}{5}}                   ∵ \mathrm{Cancel\:the\:common\:factor:}\:5

y=\frac{11\cdot \:5}{5\cdot \:2}                 ∵  \mathrm{Divide\:fractions}:\quad \frac{\frac{a}{b}}{\frac{c}{d}}=\frac{a\cdot \:d}{b\cdot \:c}            

y=\frac{11}{2}                    ∵ \mathrm{Cancel\:the\:common\:factor:}\:5

Therefore, the value of y = 11/2

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Course Grade You were 6 points shy of a B in yo
Oksanka [162]

The point total possible for the given course is equal to 500.

What is a Percent?

  • A ratio whose second term is 100 is known as a percent.
  • Parts per hundred are used in percentages.
  • The mathematical representation of percent is %.
  • The percent formula is given as, x=p \times b, where b is the base number, x is the number being compared to b, and p is the percent in decimal form.

In the question, it is given that you were 6 points shy of a B and the current total points you have is 394.

So, the total number of points you require for a B is calculated as,

394+6=400

So, the value of x is 400.

It is given that you need 80% of the course total for a B.

\implies p=\frac{80}{100}\\ \implies p=0.8

Here, we have to find the base number (b).

We have, x = 80% of b

\implies x=0.8 \times b\\\implies 400= 0.8 \times b\\\implies x=\frac{400}{0.8}

Simplifying, we get

x=500

Therefore, 500 points were possible in the course.

To learn more about the percent from the given link

brainly.com/question/24877689

#SPJ1

6 0
1 year ago
Please help me for this​
Irina-Kira [14]
What is the question you are trying to figure out?

The factor of x?
8 0
3 years ago
If robin can clean 72 rooms in 6 days how many rooms could he clean in 9 days
guajiro [1.7K]

Answer: 108 rooms

Step-by-step explanation: To solve this problem, we can set up a proportion. In the numerator of our first fraction, we will have the number of rooms Robin can clean and in the denominator, we have the time it takes him to clean 72 rooms which is 6 days.

In our second fraction, we don’t know how many rooms he can clean in 9 days. In fact, that’s what the problem is asking. Since we don’t know how many rooms Robin can clean in 9 days, we can put a variable in the numerator is our fraction. A variable is a letter that represents any number. I will use the variable “x” in this problem. In the position of the denominator, we have the time it takes him to clean X rooms which is 9 days.

Solving from here, we can use cross products so we multiply diagonally.

We have 72 rooms over 6 days equals X rooms over 9 days or 648 = 6x.

Solving from here, divide both sides by 6 and we find that x is equal to 108 which means that Robin can clean 108 rooms in 9 days.

7 0
3 years ago
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Elenna [48]
Kristin jogs 48 miles in 50 minutes, so her unit rate is 48miles/50 minutes
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40% water 60% milk

reason:
if you make then go to 100 by multiplying 2:3 by 2 you get 4:6 and then add a 0 at the end and there’s your answer
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