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zavuch27 [327]
3 years ago
8

An item that was selling for $80 is reduced to $42. Find the percent decrease in

Mathematics
1 answer:
Westkost [7]3 years ago
3 0

Answer:

47.5%

Step-by-step explanation:

You have to first subtract 80 and 42 to find the decrease first. This is 38. Now, you have to divide this by the original number which is 80. So 38 divided by 80 is 0.475.

Now multiply this by 100.

You can easily move the decimal point to the right.

So you would get 47.5%

Hope this helped!

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Joey is 5 feet tall and casts a 45-foot shadow. A building casts a 270-foot shadow at the same time. How tall is the building?
Cerrena [4.2K]

Answer:

the building is thirty feet tall

Step-by-step explanation:

so make a ratio of shadow to joey

5:45

simplify that to

1:9

so you can now divide 270 by nine

30

the building is thirty feet tall

5 0
3 years ago
A rectangular prism has a length of 12 inches, a width of 5 inches, and a height of 4 1/4 inches.
Darya [45]

Answer:

130.56

Step-by-step explanation:

Volume of the prism is 12×5×4.25=255 in³

Volume of the cubes are 1.25³=1.953125 in³

255/1.953125 = 130.56 in³

brainliest plz

5 0
3 years ago
A pair of shoes is on sale for 15% off.With this discount,customers will save $9 if they buy the shoes.What was the original pri
tiny-mole [99]

15 percent off 9.00 is 7.65

Step-by-step explanation:

The difference is 1.35

3 0
3 years ago
Consider the following sets: R = {x | x is the set of rectangles} P = {x | x is the set of parallelograms} T = {x | x is the set
Liula [17]
"T is a subset of P"

Not true since triangle has three sides but parallelogram has four sides.

"E is a subset of I"

True since equilateral triangles are isosceles triangles with all angles equal.

"S is a subset of T"

True since scalene triangles are still triangle.

"I ⊂ E"

False since there are isosceles triangles those are not equilateral triangles. Namely triangle with angles 20°, 20°, 140°

"T ⊂ E"

False since not all triangles are equilateral. Scalene triangle is one of counterexamples.

"R ⊂ P"

True since rectangles are parallelograms with right angles.

Final answer: <span>E is a subset of I, </span>S is a subset of T, and R ⊂ P.

Hope this helps.
6 0
3 years ago
Read 2 more answers
What is the base (area) of this
frosja888 [35]

Answer:

3cm + 3cm+ 14/3cm + 14/3cm = base

Step-by-step explanation:

^^

Good luck!

7 0
3 years ago
Read 2 more answers
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