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liubo4ka [24]
3 years ago
15

Ratio equivalent to 12:21 with lower terms

Mathematics
2 answers:
slamgirl [31]3 years ago
8 0
12:21 Each / by 3= 4:7
Mamont248 [21]3 years ago
6 0
4:7 because 21/3 is 7 and 12/3 is 4.
Hope this helped:))
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Need help, really not good with anything in math
Anettt [7]

Answer:

  • D. 40.

Step-by-step explanation:

<u>Find the reciprocal of 1/40:</u>

  • 1/40
  • = 40/1
  • = 40.

<u>That's really it.</u>

Your answer is 40 (D).

5 0
2 years ago
Jillian is selling boxes of cookies to raise money for her basketball team. The 10 oz. box costs $3.50, while the 16 oz. box cos
RideAnS [48]

Answer:

Jillian sold 15 ten-oz bags and 9 sixteen-oz bags.

Step-by-step explanation:

Let x represent number of 10-oz bags and y represent number of 16-oz bags.

We have been given that Jillian sold 24 boxes of cookies in total. We can represent this information in an equation as:

x+y=24...(1)

We are also told that 10 oz. box costs $3.50, while the 16 oz. box costs $5.00, so the cost of x 10-oz bags would be 3.50x and cost of y 16-oz bags would be 5y.

At the end of one week, she collected $97.50. We can represent this information in an equation as:

3.5x+5y=97.50...(2)

Now, we will use substitution method to solve our system of equations. From equation (1), we will get:

y=24-x

Substitute this value in equation (2):

3.5x+5(24-x)=97.50

3.5x+120-5x=97.50

-1.5x+120=97.50

-1.5x+120-120=97.50-120

-1.5x=-22.5

\frac{-1.5x}{-1.5}=\frac{-22.5}{-1.5}

x=15

Therefore, the number of 10-oz boxes sold be Jillian is 15.

Now, we will substitute x=15 in equation (1) to solve for y.

15+y=24

15-15+y=24-15

y=9

Therefore, the number of 16-oz boxes sold be Jillian is 9.

8 0
2 years ago
This is very very very confusing!!!! Anyone know 8th grade stuff?
Gala2k [10]

Answer:

yes

Step-by-step explanation:

There are no repeating numbers in the domain

3 0
2 years ago
Noah picked 3 kilograms of cherries. Mai picked half as many cherries as Noah. How many total kilograms of cherries die Mia and
Angelina_Jolie [31]

it would be 4.5 total

6 0
3 years ago
Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box. _(x-3)+2x=-
andreyandreev [35.5K]
<span>In order for an equation to have an infinite number of answers, the simplified equation should be x=x. In evaluating the above equation, -3 inserted in the box results in this simplified equation. The answer is therefor #1: -3</span>
4 0
2 years ago
Read 2 more answers
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