Ask question

Ask question

All categories

1 year ago

15

Lucia paints a certain room in 5 hours, and Marie paints the same room in 8 hours. How long does it take them to paint the room

if they work together? Round to the nearest tenth.

1 answer:

cluponka [151]1 year ago

6 0

Answer:

3.1 hrs painting together

Step-by-step explanation:

Lucia rate = 1 room/ 5 hr

Marie rate = 1 room/8hr

now combine the rates

1 room / ( 1/5 + 1/8) = 3.077 hrs

You might be interested in

Drop a quick picture to show the number 24?then draw a quick picture to show 24 after you have regrouped 1 ten as 10 ones explai

Artyom0805 [142]

Draw 24 circles, or sticks, or stars, and then draw 10 little squares in a row twice, and 4 separate square. In the explanation say that there are 24 of whatever shape or thing you decided to draw and, for the regrouped say that 10+10+4=24.

Hope This Helps :D

8 0

3 years ago

What is 10^-3x*10^x= 1/10

densk [106]

Since 1/10=10^-1, and multiplying exponents with the same base just adds the actual exponents at the top, x=2

3 0

2 years ago

A metallurgist is designing an experiment to determine the effect of flux, base metal, and energy input on the hardness of a wel

Anastasy [175]

Answer: 24

Step-by-step explanation:

Given : A metallurgist wants to study four different fluxes, two different base metals, and three different amounts of energy input.

i.e. 4 different choices for fluxes.

2 different choices for base metals.

3 different choices for amounts of energy input.

If each run of the experiment involves a choice of one flux, one base metal, and one amount of energy input.

Then , the number of runs are possible :-

$4\times2\times3=24$

Hence, there are 24 different runs are possible .

6 0

3 years ago

Can someone help me ASAP plsssss

AlladinOne [14]

that is literally gibberish

4 0

3 years ago

Plz.. Help me.. True or false?

zimovet [89]

Answer:

$\boxed{\mathrm{False}}$

Step-by-step explanation:

$(p-q)^2$

$(p-q)(p-q)$

Use <em>FOIL</em> method.

$p^2-pq-pq +q^2$

$p^2-2pq +q^2$

6 0

2 years ago