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2 years ago

Question 4

Mathematics

1 answer:

polet [3.4K]2 years ago

7 0

Answer:

12/7 hours

Step-by-step explanation:

First find the rate for hour for the two. For Lianne she can do 1/3 of the job per hour. For Julie she can do 1/4 of the job per hour.

Adding them together, 1/3+1/4= 7/12.

This 7/12 means that working together they can finish 7/12 of a job in an hour. We can use the speed*time=distance formula here and see that

7/12 * time = 1 job done

time = 12/7 hours.

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What is the unit rate? A. 0.57 B. 1.25 C. 1.75 D. 8

marusya05 [52]

Answer:

It's A 0.57

Step-by-step explanation:

Answer:

= 0.571429 Units per Unit

Showing Work

This is a fraction equal to

8 Units ÷ 14 Units

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 14

8 Units ÷ 14

14 Units ÷ 14

0.571429 Units

1 Unit

0.571429 Units

Unit

= 0.571429 Units per UniT

ANd you simply it and get a answer -.-

5 0

3 years ago

a circular rug is 6 feet in diameter. binding for the edge costs $1.50 per yard. what will it cost to bind the rug? justify your

STatiana [176]

C = circumference or perimeter of circle

d = diameter length

C = πd

How many yards in 6 feet?

1 yard = 3 feet

So, 2 yards = 6 feet

C = π(2 yards)

C = 2π yards

Each yard is $1.50.

So, what do you think we do next?

Can you finish?

8 0

3 years ago

When looking at the median of a data set, what information do you get when looking at the median?

cestrela7 [59]

You get the middle of all the data while looking at the median of a data set!

I hope this helped! Mark me Brainliest! :) -Raven❤️

7 0

3 years ago

Determine if S could lie on the perpendicular bisector of QR with the given coordinates

Alex

Step-by-step explanation:

The distance between two points, and is given by:

The endpoints are: Q(-5, -1), R(3, 7)

Point S is (4,-2).

The distance of S to Q is:

The distance of S to R is:

5 0

2 years ago

1. Is so hard for me it’s a before and after radio problem I can never do them

AysviL [449]

Answer: 40

Step-by-step explanation:

Let x represent the original ratio and y represent the final ratio:

Egg : Tuna

2x 3x

+15 15 tuna were added

2x = y 3x + 15 = 3y y and 3y are the final 1:3 ratio

Now you have a system of equations. I am going to choose the substitution method. "2x" can be substituted for "y" in the second equation:

3x + 15 = 3y

3x + 15 = 3(2x)

3x + 15 = 6x

15 = 3x

5 = x

Egg (final): 2x = 2(5) = 10

Tuna (final): 3x + 15 = 3(5) + 15 = 15 + 15 = 30

Egg (final) + Tuna (final) = Total sandwiches

10 + 30 = 40

6 0

4 years ago

Read 2 more answers