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sdas [7]
3 years ago
12

I need help with math​

Mathematics
1 answer:
olga_2 [115]3 years ago
7 0
What do you need help with.
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 Jalen is painting her great room including the ceiling but not the floor. The room measures 20 ft long, 30 wide and 9 ft tall.
Luden [163]

4 cans of paint

\sf --->  \ \ {\boxed {\boxed {\frac{area  \ of \ room - area \ of \ floor}{area \ the \ paint \ covers} }}}

\hookrightarrow \sf {\dfrac{2(wl+hl+hw)- (lw)}{400}}

\hookrightarrow \sf {\dfrac{2((30)(20)+(9)(20)+(9)(30))-(20*30)}{400}

\hookrightarrow \sf {\dfrac{1500}{400}

\hookrightarrow \rm {\sf {3.75}}

→ She should buy max 4 cans as she cannot buy 3.75 cans.

<em>Here </em><em>l</em><em> refers to length, </em><em>w</em><em> refers to width, </em><em>h</em><em> refers to height.</em>

<em />

3 0
2 years ago
Read 2 more answers
In a certain study comma the chances of encountering a car crash on the road are stated as ​"1 in 20​." Express the indicated de
Murljashka [212]

Answer:

The probability is 0.05.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In a certain study comma the chances of encountering a car crash on the road are stated as ​"1 in 20​."

This means that in 20 times you go out on the road, in 1 of them you are expected to encounter a car crash.

This means that

p = \frac{1}{20} = 0.05

The probability is 0.05.

7 0
4 years ago
Please help and thank you
IrinaK [193]

Answer:

b and e

Step-by-step explanation:

5 0
3 years ago
Solve for X.<br> 7x – 9 &lt; 12 or 1x + 8 &gt; 11
Fittoniya [83]

Answer:1. x<3

2.x>3

Step-by-step explanation:

Number 1.

Step 1: Add 9 to both sides.

7x−9+9<12+9

7x<21

Step 2: Divide both sides by 7.

7x

7

<

21

7

x<3

Number 2.

1x+8>11

Step 1: Simplify both sides of the inequality.

x+8>11

Step 2: Subtract 8 from both sides.

x+8−8>11−8

x>3

leave alike if this help please.

5 0
3 years ago
Write a compliment number that is less than 5
Inessa [10]
2........................................................<span>.</span>
6 0
3 years ago
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