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3 years ago

If it took 3 hours to clean 5 houses, how many houses could be cleaned in 9 hours?

Mathematics

2 answers:

Elza [17]3 years ago

6 0

Answer:

15 houses

Step-by-step explanation:

Aleonysh [2.5K]3 years ago

5 0

3*5=15 houses can be cleaned in 9 hours

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Please help I need to get the quiz done<br><br> Save me Brian

Ira Lisetskai [31]

Answer:

$x^2+8x+12$

Step-by-step explanation:

The area of a rectangle formula is length times width.

The length of this rectangle is $(x+2)$ , and the width of this rectangle is $(x+6)$

Thus, the area of the rectangle is $(x+6)(x+2)$ . This can be expanded using FOIL.

First $x(x)=x^2$

Outer $x(2)=2x$

Inner $6(x)=6x$

Last $6(2)=12$

The two x terms combine, making 8x, and the answer is $x^2+8x+12$

8 0

3 years ago

Point A is (-9,-3) and is translated 4 left and 2 down. Where is A' at?

mezya [45]

Answer:

A translation maps point A(3,7)A(3,7)A, left parenthesis, 3, comma, 7, right parenthesis to point A'(6,-2)A

′

(6,−2)A, prime, left parenthesis, 6, comma, minus, 2, right parenthesis. Let's determine what translation this is.

Solution

Step 1: Horizontal shift. AAA is shifted 333 units to the right because (6)-(3)=\tealD{+3}(6)−(3)=+3left parenthesis, 6, right parenthesis, minus, left parenthesis, 3, right parenthesis, equals, start color #01a995, plus, 3, end color #01a995.

Step 2: Vertical shift. AAA is shifted 999 units down because (-2)-(7)=\maroonD{-9}(−2)−(7)=−9left parenthesis, minus, 2, right parenthesis, minus, left parenthesis, 7, right parenthesis, equals, start color #ca337c, minus, 9, end color #ca337c.

The answer: AAA is mapped onto A'A

′

A, prime under a translation by \langle \tealD{3},\maroonD{-9} \rangle⟨3,−9⟩open angle, start color #01a995, 3, end color #01a995, comma, start color #ca337c, minus, 9, end color #ca337c, close angle.

Step-by-step explanation:

5 0

3 years ago

A company sells confetti in boxes in the shape of a triangular pyramid. Each box contains 240 cubic centimeters of confetti. If

kvv77 [185]

Answer:

Base, 8 cm; height, 4 cm i think

Step-by-step explanation:

5 0

3 years ago

Shalanda's parents pay her $10 every day that she helps with chores, plus an additional $4.50 for every hour that she works duri

qwelly [4]

Answer:

Step-by-step explanation:

E is the total and h is the hours. If she gets paid 4.50 per hour your would put h times 4.50, then you add the daily which is 10 and boom, you have E.

7 0

3 years ago

For one roadway section, the average number of cars passing a point is 2200 pcphpl (i.e. passenger cars per hour per lane). The

Yuliya22 [10]

Answer:

The average distance between common points on successive cars in one lane is of 100.8 feet.

Step-by-step explanation:

This question is solved by proportions, using a rule of three.

The cars travel at an average speed of 42 mph

Each mile has 5280 feet, so in 1 hour, the distance is of 42 miles = 221760 feet.

2200 pcphpl (i.e. passenger cars per hour per lane).

2200 cars in 221760 feet. Thus:

$d = \frac{221760}{2200} = 100.8$

The average distance between common points on successive cars in one lane is of 100.8 feet.

8 0

3 years ago