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3 years ago

Write a simplified polynomial expression in standard form to represent the area of the rectangle below.

2 answers:

6 0

Given:
Rectangle shape.
One side: 5x + 2
other side: x - 4

Area = length * width
Area = (5x+2)(x-4)
A = 5x(x-4) +2(x-4)
A = 5x² - 20x + 2x - 8
A = 5x² - 18x - 8

Sophie [7]3 years ago

6 0

Answer:

its ........................................................C

Step-by-step explanation:

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Solve for y. xy + p = 5 A) y = 5 - p - x B) y = (5-p)/x C) y = 5 - px

Damm [24]

Minus p both sides
xy=5-p
divide both sides by x
y=(5-p)/x

B

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3 years ago

Ajay bought a fan and a heater for rs 4000. He sold the fan at a profit of a 25% and the heater at a loss of 5%. If he gained 7%

Alborosie

Answer: Heater -Rs 2400; Fan- Rs 1600

Step-by-step explanation:

Given

Ajay bought a fan and a heater for Rs 4000

Suppose the price of fan is x and that of heater is 4000-x

Profit on the fan is $0.25x$

Loss on heater is $0.05\times (4000-x)$

Total profit is 7% i.e. $0.07\times 4000$

$\therefore 0.07\times 4000=0.25x-0.05(4000-x)\\\Rightarrow 280=0.25x-200+0.05x\\\Rightarrow 480=0.3x\\\Rightarrow x=1600$

Thus, the price of heater is $4000-1600=Rs.\ 2400$

Price of fan is $Rs.\ 1600$

Price of heater is $Rs.\ 2400$

8 0

3 years ago

Jim can read 17 pages in 12 minutes. If he can maintain this pace, how many pages can he read in one hour?

Lostsunrise [7]

Answer: 85 pages
cross multiply 60 x 17 = 1020 / 12 = 85

17 85
— = —
12 60

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3 years ago

Jim and Krutika are marking exam papers. Each set takes Jim 50 minutes and Krutika 1 hour. Express the times Jim and Krutika tak

vlabodo [156]

Answer:

5:6

Step-by-step explanation:

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3 years ago

A certain medicine is given in an amount proportional to a patient's body weight. Suppose a patient weighing 153 pounds requires

mario62 [17]

Mg required per pound = 249/153 = 1.63mg

Therefore medicine required= 102 *1.63= 166.26g

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3 years ago

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