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s344n2d4d5 [400]
3 years ago
9

Enya is building a storage cupboard in the shape of a rectangular prism. The rectangular prism has a square base with side lengt

hs of 2.4 feet and a height of 3.4 feet. Find the percentage of the amount of paint she would use to paint all but the bottom surface of the prism to the amount she would use to paint the entire prism. Round to the nearest tenth.
Mathematics
1 answer:
Brrunno [24]3 years ago
3 0
The top and bottom have area (2.4 ft)² = 5.76 ft².

The sides have area (4*2.4 ft)*(3.4 ft) = 32.64 ft².

The the total area is (2*5.76 +32.64) ft² = 44.16 ft². All but the bottom area is then 44.16 ft² -5.76 ft² = 38.40 ft².

The ratio (all but bottom area)/(total area) is then
  38.40/44.16 ≈ 87.0%
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3.X + 20 = 120
Anvisha [2.4K]

3x+20=100

Now you would need to move the constant to the right side and change within it’s sign

3x=100-20

Now you would subtract the numbers so for 100-20 would give you 80

So now you then do 3x=80

But if you want to divide the equation, divide it by both sides by 3

Which would give you x=80/3, x=26.6 or x=26 2/3

6 0
3 years ago
What is the answer to this problem?
lions [1.4K]

The slope of a line is \frac{dy}{dx}

where d is the difference and y and x are the values.

In this case, the difference in y is 10 and the difference in x is 0

And division where the denominator being 0 leads to the answer being Undefined or Infinity as the line is directly on the y axis.

3 0
3 years ago
Dalia is a botanist. She wants to model the growth rate of the patch of ground that is covered by a certain plant as time passes
Serjik [45]

Square meters/week because the independent variable is time which we measure in unites like weeks

8 0
3 years ago
Pattern A starts at 20 and has the rule 'subtract 2 Pattern B starts at 20 and has
Ksenya-84 [330]

Answer:

The correct option is C.

Step-by-step explanation:

The two patterns are defined as follows:

  • Pattern A starts at 20 and has the rule 'subtract 2'.
  • Pattern B starts at 20 and has  the rule 'subtract 1'.

Form the two patterns as follows:

Pattern A : 20, 18, 16, 14, 12, 10, 8, 6, 4, 2, 0

Pattern B : 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0

The first several terms of Patterns A and B are shown by:

Pattern A: 20, 18, 16, 14, 12, 10

Pattern B: 20, 19, 18, 17, 16, 15

Thus, the correct option is C.

6 0
4 years ago
The admission fee at an amusement park is $1.50 for children and $4 for adults. On a certain day, 334 people entered the park, a
zhuklara [117]

Answer: Number of children = 184

Number of adults = 150

Step-by-step explanation:

Let x be the number adults and y be the number of children.

334 people entered the park.

\Rightarrow\ x+y=334----------(1)

The admission fee at an amusement park is $1.50 for children and $4 for adults and fees collected totaled 876.00 dollars.

\Rightarrow\ 1.50x+4y=876----------(2)

Multiply 4 to equation (1), we get

4x+4y=1336---------(3)

Eliminate equation (2) from (3)

2.50x=460\\\\\Rightarrow\ x=\dfrac{460}{2.5}=184

Put x= 184 in (1)

184+y=334\\\\\Rightarrow\ y=334-184=150

∴ Number of children = 184

Number of adults = 150

8 0
3 years ago
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