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ArbitrLikvidat [17]
3 years ago
10

??? r + 3r + _ = 6r 3 2 3r 2r

Mathematics
2 answers:
Nina [5.8K]3 years ago
7 0
2r because adding 3r and r gets you 4r so you would need 2 more
Elena-2011 [213]3 years ago
4 0

Answer:

2r

Step-by-step explanation:

r+3r+_=6r

4r+_=6r

Subtract 4r from both sides.

_=2r

Therefore the answer is 2r.

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Pedro and Carmela are cleaning their kitchen. It takes Pedro 3 hours to clean the kitchen by himself, while Carmela can clean th
Igoryamba

Answer:

B

Step-by-step explanation:

Here, we want to choose the equation representing the time it will take if they worked together

Let the amount of tasks to be done be t

pedro will work at a rate of t/3

Camela will take t/2

So the joint rate will be

t/2 + t/3

This joint rate will be equal to 1

Thus, we have

t/2 + t/3 = 1

5 0
3 years ago
a white-tailed deer can sprint at speeds up to 30 miles per hour. American bison can run at speeds up to 3,520 per minute. Which
guajiro [1.7K]
For the answer to the question above,
In 1 minute, bison runs 3520 feet
In 60 minutes, the bison would run
3520*60 feet
211200 feet per hour.
These are equivalent to;
40 miles per hour since 1 mile is equivalent to 5280 feet.
The bison is faster by 10 miles per hour
Then If you convert the bison's speed to mph you get that it can run at speeds up to 40 mph.

I got this by seeing how many feet that they run in one hour so 3520 x 60 is 211200 which divided by 5280 is 40 mph.

I hope my answer helped.
5 0
3 years ago
Read 2 more answers
PLEASE HELP ME I NEED HELP PLEASE HELP <br> PLEASE GIVE THE ANSWER UNDER THE QUESTION AND RATIO
Liono4ka [1.6K]

Answer:

6. 225 feet in 3 minutes = 75 feet in 1 minute (slower)

   360 feet in 5 minutes = 72 feet in 1 minute

7. $4 for 5 ounces = $0.80 for 1 ounce (most expensive)

   $14 for 20 ounces = $0.70 for 1 ounce

8. 72 people in 6 hours = 12 people in 1 hour

    117 people in 9 hours = 13 people in 1 hour (greater rate per hour)

4 0
3 years ago
Read 2 more answers
Help please!<br> Find x<br> x=<br> 7<br> 7/2<br> /(14)
Dahasolnce [82]

Answer:

x = 7

Step-by-step explanation:

recognize that this is a right triangle with one of the  internal angles = 45°. This means that the other angle not shown is 180 - 90 - 45 = 45°

This makes the triangle an isosceles triangle.

If so, x must be the same length as the other side adjacent to 90°

i.e x = 7

8 0
3 years ago
What is the volume of a pentagonal prism that has a base area of 5.16 cm2 and a height of 9 cm?
strojnjashka [21]
The volume of a pentagonal prism that has a base area of 5.16 cm^2 and a height of 9cm is 46.44cm^3

Have fun!
4 0
3 years ago
Read 2 more answers
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