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3 years ago

Help me guys............need help

Mathematics

2 answers:

Stolb23 [73]3 years ago

5 0

It think the answer is F

nirvana33 [79]3 years ago

3 0

Run then jump, go over (run) to the left to -2 then up or down (jump) to -7

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A painter can paint 1212 a room in 11212 hours. How many of the same-sized rooms can he paint per hour?

shutvik [7]

He can paint around 9.25 rooms an hour. Please mark Brainliest!!!

5 0

3 years ago

There are 32 students in a class. Nine of those students are women. What percent are men?

QveST [7]

Answer:

72%

Step-by-step explanation:

you can divide part of a whole by the whole to get a decimal

this decimal is the percentage when you move the decimal 2 places to the right

32 - 9 = 23 men

23/32 = .72 (rounded)

.72 = 72%

5 0

3 years ago

The width of a rectangle is 6 kilometers less than twice its length. if its area is 108 square kilometers, find the dimensions

Art [367]

Hi there!

Answer:
length = 9 kilometres
Width = 12 kilometres

Let's solve this problem step by step!
To find our answer we need to set up and solve an equation.

Let the length of the rectangle be represented by x.
The width of the rectangle can therefore be expressed by 2x - 6.

The area of a rectangle can be found by using the formula:
A = width × length

Plug in the data from the formula
A = x (2x - 6).

Simplify using rainbow technique.
$x(2x - 6) = 2 {x}^{2} - 6x$

Now we've found the simplified expression that expresses the area of the rectangle. Therefore, we can now set up and start solve the equation.

$2 {x}^{2} - 6x = 108$
Subtract 108

$2 {x}^{2} - 6x - 108 = 0$
Divide by 2.

${x}^{2} - 3x - 54$
$(x - 9)(x + 6) = 0$
Rule AB = 0, gives A is 0 or B is 0.

$x - 9 = 0 \\ x = 9 \\ \\ x + 6 = 0 \\ x = - 6$

The length of the rectangle, which was represented by x, must be 9 (since it cannot be a negative number).

Length
$x = 9$
Width
$2x - 6 = 2 \times 9- 6 = 18 - 6 = 12$

Answer:
length = 9 kilometres
Width = 12 kilometres

~ Hope this helps you!

6 0

3 years ago

Order from least to greatest 0.5, 1/5, 0.35, 12/25, 4/5

sdas [7]

First change them all into either fractions or decimals. Decimals are probably easier though. 1/5 = 0.2; 12/25 = 0.48; 4/5 = 0.8
Order: 0.2, 0.35, 0.48, 0.5, 0.8
Then you change the decimals that you converted back into the fraction form
Answer: 1/5, 0.35, 12/25, 0.5, 4/5

5 0

3 years ago

Identify the constant of proportionality from the graph. PLEASE HELP AND HURRY!!

geniusboy [140]

The answer is D

Have you ever heard of rise over run rise/run
Y/x. Well in this case the run is One with a rise of four

3 0

3 years ago