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Zigmanuir [339]
3 years ago
8

Sally can paint a room in 9 9 hours while it takes steve 4 4 hours to paint the same room. how long would it take them to paint

the room if they worked​ together?
Mathematics
1 answer:
aliya0001 [1]3 years ago
7 0
If it is 99 and 44 it would take 55 I guess but if it is 9.9 and 4.4 then it would 5.5 hours
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pleaseeeeeeee HELPPPPPPPPPPPp In a parking lot, 25% of the cars are SUVs, and 40% are pickup trucks. The rest of the cars are se
Arisa [49]

Answer:

60 cars

Step-by-step explanation:

In order to find how many total cars are in the parking lot, you must use a ratio. This is what you know:

25% = SUVs

40% = pickups

X% = cars

100% - (25% + 40%) = 35%. Thus, the remaining 35% of the cars are sedans. Now, we use a ratio to find the TOTAL number vehicles. See below:

X/65% * 21/35% = 35x = (21x65) = 1,365 (Hint: remember cross-multiplying??)

35x = 1,365

x = 1,365/35

x = 60 total cars

Sanity check:

25% of 60 = 15 SUVs

40% of 60 = 24 pickups

35% of 60 = 21 sedans

TOTAL: 60 cars

8 0
3 years ago
Read 2 more answers
Keith is saving money for a car. He has saved the same amount each year for the past three years, and records how much he has at
noname [10]

Answer:

Keith's unit rate of change of dollars with respect to time is $1500.

Step-by-step explanation:

It is given that Keith is saving money for a car.

Year 1: 1500

year 2: 3000

year 3: 4500

Let y be the saved amount after x year.

The coordinate pairs according to the given table are (1,1500), (2,3000) and (3,4500).

The formula for rate of change is

Consider any two coordinate pairs.

Let as consider (1,1500) and (2,3000). So, Keith's unit rate of change of dollars with respect to time is

Therefore, Keith's unit rate of change of dollars with respect to time is $1500.

8 0
4 years ago
8=t/-3+4 help me please
Fittoniya [83]

*RE-EDITED

8=\frac{t}{-3}+4 \\ \\ 8-4=\frac{t}{-3} \\ \\ 4=\frac{t}{-3}\\ \\ 4(-3)=t=-12

Hope that helps!

4 0
3 years ago
Which phrase represents the algebraic expression 3d+7?
Anna [14]

Answer:

3 multiplied by a variable d and add seven to it

Step-by-step explanation:

3 multiplied by a variable d and add seven to it.

6 0
3 years ago
Mary drives 33 miles in 3/5 of an hour. After 6 hours of traveling, how far will she drive?
Minchanka [31]

Answer:

550 miles

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
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