1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
emmasim [6.3K]
2 years ago
12

2) Working alone, Rob can dig a 10 ft by 10 ft hole in ten hours. Shayna can dig the same hole in seven hours. Find how long it

would take them if they worked together.​
Mathematics
1 answer:
Free_Kalibri [48]2 years ago
8 0

rob can dig 1/10ft in one hour

Shayna can dig 1/7ft in one our

together they can dig

1/10+1/7

(7+10)/70 in one hour

17/70

in for hours they can dig

17/70×4

68/70

the left work is 2/70

in 60 minutes they can dig 17/70

1/70 work can be done in 60 minutes/17

2/70 work can be done in 60/17×2 minutes

7.088 minutes

for the entire work they take 4hours and 7 minutes

You might be interested in
Mark has 153 hot dogs and 171 hamburgers. He wants to put the same number of hot dogs and hamburgers on each tray. What is the g
navik [9.2K]

Answer: 153 trays

Step-by-step explanation:

hotdogs =153

Hamburger = 171

Mike is to put the same number of hamburger and hotdogs in each plate.

we assume that a whole number of each food is placed in each tray.

The maximum amount of trays will be determined by the minimum food which is hotdog, so, the hotdog is the constraint.

Mike will have to use 153 trays.

5 0
3 years ago
Read 2 more answers
PLSSS HELP IF YOU TURLY KNOW THISS
solniwko [45]

Answer:

super simple its blueprints!

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
What is 24 2/3 divided by 1 3/4
KengaRu [80]
296/21 is the answer hope this helps 
4 0
2 years ago
Read 2 more answers
Melinie 1 tom2 and admission 3<br> Help
Len [333]

Answer:

furst picture Is C. 4 3/4 cup left

8 0
3 years ago
Kira walks 8 and a half blocks in 17 minutes. If Kira continues to walk at a steady pace, how many blocks will she walk each min
nlexa [21]

Answer:

Half a block ( 0.5 or 1/2 )

Step-by-step explanation:

8 1/2  blocks can also be written as 8.5 blocks.

If Kira walks 8.5 blocks in 17 minutes [and continues to walk at this steady pace], divide 8.5 by 17.

8.5/17 = 0.5

So, Kira walked 0.5 or 1/2 blocks in a minute.

I hope this helps! :)

5 0
2 years ago
Other questions:
  • What is the sum of the exterior angles of a<br> 14-gon?
    11·2 answers
  • Please help thank you so much
    10·1 answer
  • A slope of 6 and a point (4,9)
    10·1 answer
  • Mr.Church had 3 muffins he sold 2 but then baked 6 more and sold 4 more how many muffin did he not sell.
    5·2 answers
  • How to do composition of functions​
    9·1 answer
  • Evaluate -2 +7 +(-4).<br> ANSWER THIS QUESTION
    13·2 answers
  • How many triangles do you see
    9·2 answers
  • What is the difference of the fractions? 7/8 - 5/8
    13·1 answer
  • A gym membership costs $25 per month plus a
    12·2 answers
  • 1. Given the points A (2, 14) and B (17, -6).
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!