All categories

3 years ago

Which rates are unit rates? Check all the apply.

Mathematics

1 answer:

GalinKa [24]3 years ago

5 0

Answer:

9 students : 1 table
87 pebbles per aquarium
10 slices for each child

Step-by-step explanation:

A "unit" rate is one that has a denominator of 1 unit.

12 apples : 3 baskets has a denominator of 3, so is not a unit rate. It could be made into a unit rate of 4 apples : 1 basket by dividing the numbers by 3.

Similarly, $5 for 4 muffins has a denominator of 4, so is not a unit rate. The equivalent unit rate is ($5/4) per muffin, or $1.25 per muffin.

All of the other offered choices are unit rates. (See list above.)

You might be interested in

ricardo has 2 cases of video games with the same number of games in each case. he give 4 games to his brothers.ricardo has 10 ga

BARSIC [14]

His brothers have 4 games
He had 10 games
So in total there are 14 games
And if there are 2 cases and each one had the same amount, then in each one there would be 14÷2=7

In each case, there are 7 games.

8 0

3 years ago

2 Math Questions<br>x^2+4x-32=0<br>(x-2)(x+8)=0

kozerog [31]

The first question 1. x= 4 2.= -8
The second question 1.x= -8 2. X= 2

8 0

3 years ago

A golfer has 4 different hats, 3 gloves, and 2 pairs of shoes to pick from for his round of golf. In how many ways can he make h

Irina-Kira [14]

He can choose them in 24 different ways

4 0

4 years ago

Lucy has a broken with 5 shelves there are k books on each shelf using k write an expression

Svetach [21]

STEP - BY - STEP EXPLANATION

What to find?

An expression for the total number of books.

Given:

Number of shelves = 5

Number of books in each shelf = k

If Lucy has a bookcase with 5 shelves and each of this

shelf has k books, then the total number of books can be determine by multiplying the numbers of book by the numbers of shelves.

That is;

$\begin{gathered} Total\text{ number of book=5}\times k \\ \\ =5k \end{gathered}$

ANSWER

5 0

1 year ago

Betty paints twice as fast as Dan. Working together, Dan and Betty can paint 2, 400 square feet in 4 hours. Another employee, Su

Natalija [7]

Answer:

2670 square feet. Option e.

Step-by-step explanation:

Dan and Betty can paint 2,400 square feet in 4 hours.

They can paint in one hour $\frac{2400}{4}$ = 600 square feet.

Since given that Betty paints twice as fast as Dan. Let us take an equation:

Let Betty = B, Dan = D and Sue = S

B = 2D

4(B+D) = 2400

4B + 4D = 2400

12D = 2400

D = 200 sq. ft.

B = 2D = 400 sq. ft.

Therefore, Dan can paint 200 square feet in 1 hour and Betty paints twice 400 square feet in 1 hour.

Now given three of them can paint 3,600 square feet in 3 hours.

3( B+D+S) = 3600

3B + 3D + 3S = 3600

3(400) + 3(200) + 3(S) = 3600

1200 + 600 + 3S = 3600

S = 600 Sq. ft.

Sue can paint 600 square feet in one hour.

So sue can paint in 4 hours and 27 minutes.

$(\frac{4+27}{60})$ × 600

= 2670 square feet. Option e.

8 0

3 years ago