Manuel says that you can use one of the denominators of 5 / 6 and 11/30 when renaming these fractions using a common denominator. Why is this true?

Answers

Answer 1

Answer: It is true because 5/6 and 11/30 have a common denominator of 30. a common denominator is the bottom number of the fraction that will make it easy to add the two fractions.
example: 2/7 and 3/14 have a common denominator of 14 because you can multiple 2/7 by 2 to get an equivalent fraction of 4/14. now the denominator is the same and you can add the two fractions

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Divide 36 in the ratio of 2 4 how do I divide a quantity into a ratio

Answers

Add up the 2 sides of the ratio. In a ratio of 2:4, one will get 2 shares and the other will get 4 shares. There are 2+4= 6 shares all together. The 6 shares add up to 36, so how much is each share ? It's. 36/6 = 6 in a share.<br />So the small side of the ratio gets 2 shares = 12, and the big side gets 4 shares = 24. The split is 12:24. Those numbers are in the ratio of 2:4 and they add up to 36. ====> Add the sides of the ratio to find the total number of 'shares'.

Answer:

Step-by-step explanation:

Ellie uses 27 feet of fabric to make 48 doll dresses. she uses the same amount of fabric to make each dress. How many yards of fabric did Ellie use to make each dress?

Answers

If a yard is 3 feet and Ellie has 27 feet, she has 9 yards. If there are 48 dresses made and 9 yards total, 9/48 feet per dress is your answer.

Combine the like terms: 8a+8b-2a

Answers

8a + 8b - 2a

8a and 2a are like terms.
Note: always remember to include the sign in front of a term (if there is no sign, then it is a plus). Here, it’s:

+8a -2a = 6a

8b is not a like term with 6a, because b and a are unable to be added together/multiplied.

So, the answer is:

6a + 8b

Or
8b + 6a

There are 16 females and 20 males in a class. What is the theoretical probability that a randomly chosen student is female.

Answers

16+20
=36 students

We know that there are 36 students in total, so now we can calculate the chance the student chosen is female.

16/36
=44.444....% or 4/9

The probability is 44.444....% or 4/9.

Luis made 80% of what he made last week.If he made 72$ this week,how much did he make last week

Answers

Let

x--------> the amount in dollars that Luis make last week

we know that

$80\% =(80)/(100)=0.80$

$0.80x=72\$$ ------> equation that represent the situation

solve for x

Divide by $0.80$ both sides

$0.80x/0.80=72\$/0.80$

$x=72\$/0.80$

$x=90\$$

therefore

the answer is

$90\$$

Answer:

He made $90 last week

Step-by-step explanation:

Since we are told that Louis made 80% of what he made last week and since Louise made $72 this week, to get how much he made this week, we will follow the step below:

let x be the amount he made last week

80% of x = $72

80% × x = $72

$(80x)/(100)$ = $72