A carpenter installed 10 windows in 4 hours.another carpenter installed 50 windows in 20 hours. Are the two carpenters working at the same rate?explain

Answers

Answer 1

Answer: Yes they are working at the same rate because 4x5=20 and 10 windows every four hours and 5x10= 50 so they are both working at the same rate. Or here is another answer, They are working at the same rate because one was doing 10 windows every four hours and one did 50 windows in 20 hours, so 4 x 5= 20 which is the amount of hours the other carpenter was doing so 5x10 for every four hours, and that equals 50 so they were both working at the same rate. Hope I helped :)

Answer 2

Answer: 10/4=2.5
50/20=2.5

both carpenters are working at the same speed rate as 2.5=2.5

Related Questions

David wants to hang a mirror in his room. The mirror and frame must have an area of 8 square feet. The mirror is 2 feet wide and 3 feet long. Which quadratic equation can be used to determine the thickness of the frame, x?2x2 + 14x − 2 = 0 3x2 + 10x − 8 = 0 4x2 + 10x − 2 = 0 x2 + 7x − 8 = 0
Simplify the expression:25 - 3(5x - 6) - 22x
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Through: (2,-3). Slope = -5/2

-4(y - 2) = 12

Answer ASAP plz

Answers

Answer: The answer is -1

Step-by-step explanation:

-4(y - 2) = 12

-4y + 8 = 12

- 8 - 8

_____________

-4y = 4

________

-4 -4

y = -1

Teach me how to ''write each rational number in a form a/b where a and b are integers

Answers

write the number over its next next factor of 10. Then multiply by 10s to get rid of the decimal (if there is). Then just simplify.

What is 3 percent of $1500

Answers

3 percent is 3 for every [1] hundred, and there are 15 hundreds in 1500, so we multiply 3 by 15 for 15 hundreds to get 45, and then we translate that back to money to get
$45

The polynomial 2x3 + 9x2 + 4x - 15 represents the volume in cubic feet of a rectangular holding tank at a fish hatchery. The depth of the tank is (x – 1) feet. The length is 13 feet.

Answers

Answer:

$(2x+5)(x+3)$

Step-by-step explanation:

The polynomial $2x^3 + 9x^2 + 4x - 15$ represents the volume in cubic feet of a rectangular holding tank at a fish hatchery

Use synthetic division to find the expressions representing the other sides of the tank

$(2x^3 + 9x^2 + 4x - 15)/(x-1)$

x-1=0 , add 1 on both sides

x=1, write all the coefficients and then divide by 1

In synthetic division, drop the first number

then multiply it with 1 and write it below the second number.

Add it and do the same

1 2 9 4 -15

0 2 11 15

-------------------------------------

2 11 15 0

Remainder is 0

Frame expression using the numbers 2 11 and 15

$2x^2+11x+15$

product is 2 times 15 = 30

sum is 11

6 times 5 is 30 , 6 plus 5 is 11

$(2x^2+6x)+(5x+15)$ , take out GCF from each group

$2x(x+3)+5(x+3)$

$(2x+5)(x+3)$

Which of the following equations are equivalent to-2m-5m-8 #-(-7) + m?D-15m-4md:7m-8-rn-4□-3m-8-4-m□m-4.7m-8-8.7m- 4-m□-8.3m-4-m

Answers

-2m - 5m - 8 = 3 + (-7) + m
-7m - 8 = 3 - 7 + m
-7m - 8 = m - 4 <=== here is one

m - 4 = -7m - 8 <=== another one
-8 - 7m = -4 + m <== and another one

Read the word problem below. Chan rows at a rate of eight miles per hour in still water. On Wednesday, it takes him three hours to row upstream from his house to the park. He rows back home, and it takes him two hours. What is the speed of the current? Which of the following is a clue that would help solve this word problem? The rate of Chan’s rowing in still water is 8 mph. Chan rows from the house to the park on Wednesday. Chan’s house is next to a river. The entire trip takes five hours.

Answers

A clue that would help to find the speed of the current is that the rate of Chan's rowing in still water is 8 mph.

Concept of Boat and Stream:

This concept comprises of 4 terminologies:

Stream: Flowing water of the river is stream.

Upstream: Direction of the boat is opposite to the flow of stream.

Downstream: Direction of the boat is with the flow of stream.

Still Water: Considering no movement of water, hence zero speed.

Given:

Speed of Chan's boat in stillwater = 8 mph

Time taken by Chan to row upstream from his house to the park = 3 h

Time taken by Chan to row downstream from the park to his house = 2 h

we have to find the speed of the current.

Let the speed of the current be v.

We know, Speed = Distance / Time

⇒ Distance = Speed × Time

Now, the distance between the house and the park is constant, hence the distance travelled upstream and downstream will be constant.

For upstream, speed of the boat is calculated as:

⇒ Speed = (speed of the boat in still water) - (speed of the current)

⇒ Speed = (8 - v)

Hence, distance is:

⇒ Distance = (8 - v) × 3 …(1)

Similarly for downstream, speed of the boat is:

⇒ Speed = (speed of the boat in still water) + (speed of the current)

⇒ Speed = (8 + v)

Distance will be:

⇒ Distance = (8 + v) × 2 …(2)

Now since the distance is equal we can equate the equation (1) and (2).

⇒ (8 - v) × 3 = (8 + v) × 2

⇒ 24 - 3v = 16 + 2v

⇒ 5v = 8

⇒ v = 1.6 mph

Hence, the speed of the current is 1.6 mph.

Here, we can observe that to solve this problem we need the time taken to cross along each stream and the speed of the boat in the still water.

The option: Chan rows from house to the park on Wednesday, gives information about the the distance travelled by the boat and it is constant and cannot be used to deduce the speed of the current.

The option: The entire trip takes five hours, is not used anywhere to solve the problem, instead the separate times to cross each stream was required. Hence this option was also not sufficient.

Therefore, the rate of Chan's rowing in still water is 8 mph, is the clue that helps to solve this word problem.

Learn more about the Boat and Stream Concept here: brainly.com/question/16712505?referrer=searchResults

#SPJ2

Answer:

its A

Step-by-step explanation:

i literally just took the test

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