3 years ago

9x - 7x2 +4x2 - x + 4x3 - 3x2

Mathematics

1 answer:

Anna35 [415]3 years ago

3 0

Answer:

The answer to your question is: 4x³ - 6x² + 8x

Step-by-step explanation:

see the picture

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World Toy buys bicycles for $40 and sells them for $95. What is the percent mark-up in the price?

Arisa [49]

Answer:

57%

Step-by-step explanation:

4 0

3 years ago

Clare is painting some doors that are all the same size. She used 2 liters of paint to cover 1 3/5 doors. How many liters of pai

barxatty [35]

Answer:

$1\frac{1}{4}\ liters$

Step-by-step explanation:

step 1

Convert mixed number to an improper fraction

$1\frac{3}{5}=\frac{1*5+3}{5}=\frac{8}{5}$

step 2

Using proportion

$\frac{2}{(8/5)}\frac{liters}{doors} =\frac{x}{1}\frac{liters}{door}\\ \\x=2/(8/5)\\ \\x=10/8\ liters$

step 3

Convert to mixed number

$\frac{10}{8}\ liters=\frac{8}{8}+\frac{2}{8}=1\frac{1}{4}\ liters$

8 0

3 years ago

(3x + 4) (x-2) answer

Otrada [13]

3x^2+-8

This answer for (3x+4) (x-2)

7 0

2 years ago

What is 2.05 +4.77 ?

Effectus [21]

The answer is 6.82

2 + 4 = 6

.05 + .77 = .82

6 + .82 = 6.82

4 0

2 years ago

Read 2 more answers

Martin uses 5/8 of a gallon of paint to cover 4/5 of a wall. What is the unit rate at which Martin paints in walls per gallon?

Papessa [141]

Answer:

The unit rate is 32/25 Walls per gallons.

Step-by-step explanation:

Gallons of paint used by Martin = 5/8 gallons

Portion of wall Martin wants to paint in pints = 4/5 wall.

Rate at which Martin paints the wall: Rate = Portion of wall covered/Paints Used.

Rate = 4/5 Gallons/5/8 Gallons = 32/25 Wall Gallons.

8 0

2 years ago