2 years ago

If it takes Doug 40 mins to clean his home and Frankie 50 mins. How long will it take if they work together?

1 answer:

8 0

Find the average value:
40 minutes + 50 minutes = 90 minutes
90 minutes/2 = 45 minutes
Together it will take them 45 minutes to clean the house

You might be interested in

Line segment AB has endpoints A(2, 9) and B(5, 8) . A dilation, centered at the origin, is applied to AB¯¯¯¯¯ . The image has en

Mumz [18]

Can you take a screenshot

5 0

2 years ago

A students tuition was $4200. A loan was obtained for 6/7 of the tuition. How much was the loan ?

Orlov [11]

$4,200 divided by 6/7 equals $100

7 0

2 years ago

Read 2 more answers

Line segment AB has endpoints A (-4, 4) and B (2, 4). What is the length of line segment AB?

sineoko [7]

Step-by-step explanation:

the distance is sqrt ( (-6)^2 + (-12)^2) = sqrt( 36 + 144) = sqrt( 180) = sqrt(36*5) = 6 * sqrt(5)

2/(2+4) = 2/6 = 1/3

-2 + (1/3)*6*sqrt(5) = -2 + 2* sqrt(5)

6 + (1/3)*6*sqrt(5) = 6 + 2* sqrt(5)

8 0

2 years ago

which of the following does not have any rectangular faces pentagonal prism hexagonal pyramid rectangular prism square pyramid

zvonat [6]

Hexagonal pyrimad is the answer.

3 0

2 years ago

Read 2 more answers

Abigail and Spencer calculate the slope of the line between the points (3,-1) and (5,4) in different ways. Abigail calculates th

telo118 [61]

Answer:

Spencer and Abigail are correct

Lauren is incorrect

Step-by-step explanation:

Spencer and Abigail are correct

Slope = change in y ÷ change in x

Or $m=\dfrac{y_2-y_1}{x_2-x_1}$

Let $(x_1,y_1)$ = (3, -1)

Let $(x_2,y_2)$ = (5, 4)

$\implies m=\dfrac{4-(-1)}{5-3}=\dfrac52$

This is Spencer's method

Let $(x_1,y_1)$ = (5, 4)

Let $(x_2,y_2)$ = (3, -1)

$\implies m=\dfrac{-1-4}{3-5}=\dfrac52$

This is Abigail's method

It doesn't matter which point you label as point 1 and point 2, as long as you carry out the slope calculation correctly.

Lauren's calculation is wrong as she calculated her slope as:

$m=\dfrac{y_2-y_1}{x_1-x_2}$

where it should have been $m=\dfrac{y_2-y_1}{x_2-x_1}$

4 0

1 year ago