Ask question

Ask question

All categories

mihalych1998 [28]

2 years ago

6

the time t required to cut the grass in a park varies inversely as the number of workers cutting the grass w. If 6 workers can c

ut the grass in 4 hours how many workers will be needed to cut the grass in 3 hours

1 answer:

mafiozo [28]2 years ago

3 0

24 = 3w
w = 8 workers

You might be interested in

2) Find each angle measure to the nearest degree

UNO [17]

Answer: AB=7.74in.;m<A

=57*;m<B=33*

Step-by-step explanation

this symbol means degrees *

8 0

2 years ago

Use the distributive property and combine like terms to simplify: u(v−10)

siniylev [52]

Answer:

uv - 10u

Step-by-step explanation:

To distribute a problem, you have to multiply what is on the outside of the parenthesis with what is on the inside.

u · v = uv

u · -10 = -10u

Combined, u(v - 10) = uv - 10u.

6 0

3 years ago

Students at Lincoln middle school earn $5 for every 4 boxes of cookie dough sold during a fundraiser. Students at Williams middl

muminat

Answer:

5x4 = 20

7x6=42

7 0

3 years ago

Read 2 more answers

Use a system of equations to solve this problem. Dr. Graham currently has two acid solutions. She only has a 60% acid solution a

Natalka [10]

<span>Dr. Graham currently has two acid solutions.
60% acid AND 20% acid </span>
Dr. Graham needs 30 L of a 50% acid solution
We set up 2 equations in which s = 60% acid and t = 20% acid
A) s + t = 30
B) .60s + .20t = (.50 * 30)
We multiply equation A by -.20
A) = -.20s -.20t = -6 then we add it to B)
B) .60s + .20t = 15
.40s = 9
s = 22.5
t = 7.5
So, she needs to mix 22.5 liters of 60% acid with 7.5 liters of 20% acid.

Source:
http://1728.org/mixture.htm

4 0

2 years ago

In 2010, the population of a city was 224,000. From 2010 to 2015, the population grew by 6%. From 2015 to 2020, it fell by 4%. H

Sophie [7]

Answer:

people 2010:

224,000

people in 2015:

224,000(1+0.06) =237,440

people in 2020

237440(1-0.04) =227,942

6 0

3 years ago