Lyle can paint a room in 3 hours. Selena can paint a room with the same dimensions in 2 hours. If they work together, how many hours does it take them to paint the room? Round your answer to the nearest tenth?

Answers

Answer 1

Answer: The rate at which they paint together is 1 room per two hours plus one room per three hours. (1/2)+(1/3) = (3/6)+(2/6) = (5/6) hours, or 50 minutes.

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You place a mirror on the ground 6 feet from the lamppost you move back 3 feet and see the top of the lamp post in the mere what is the length what is the height of the lamppost

Answers

I think that it's 50 feet

Multiply (2.4 ⋅ 1014) ⋅ (4 ⋅ 107). Express the answer in scientific notation

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You multiply 2.4 with 4 to get 9.6. Then 10^14 times 10^7 and you should get 10^21. Since the number 9.6 is between 1 and 10, you don't do anything with the exponent. So the scientific notation would be 9.6 x 10^21. :)

9.6*10^21 is your answer

What is 0.622 as a percentage *

Answers

62.2% i think i think that is the answer

62.2 % because. you. move the. decimal. 2 to the. right

What is the value of x in the equation 3x-4y=65, when y=4

Answers

Answer:

I believe it is 27

Step-by-step explanation:

Answer: x = 27

Step-by-step explanation:

To solve this, first insert 4 for y:

3x - 4 * 4 = 65

Next, multiply the numbers:

3x - 4 * 4 = 65

3x - 16 = 65

Next, move the constant to the right and change its sign:

3x - 16 = 65

3x = 65 + 15

Next, add the numbers:

3x = 65 + 16

3x = 81

Finally, divide both sides of the equation by 3:

3x = 81

3x ÷ 3 = 81 ÷ 3

(Any expression divided by itself equals 1)

3x ÷ 3 = 81 ÷ 3

x = 81 ÷ 3

x = 81 ÷ 3

x = 27

What is 9/12 simplified

Answers

9/12 simplified would equal 3/4 since the gcf of 9 & 12 is 3. and 9/3 is 3 and 12/3 is 4. so the answer would be 3/4

3/4 is the simplified version of 9/12

Model the number 8.88 on the place value

Answers

8 tens plus 80 tenths and 8 hundredths

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