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Zielflug [23.3K]

3 years ago

10

Find the perimeter and area of this rectangle

1 answer:

yulyashka [42]3 years ago

3 0

P = 11 + 4 + 18 + 37 + 7 + 19 = 96

a = (18*7) + (11*19) = 126 + 209 = 335

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G=A/4 <br><br><br>fous on a please<br>

earnstyle [38]

G = A/4

Solve for A by multiplying both sides by 4:

A = 4G

5 0

2 years ago

Read 2 more answers

Write 0.65 as a fraction

Over [174]

0.65 is 65/100, and since both of those numbers are divisible by 5, the answer is
13/20

5 0

3 years ago

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Sandy purchases her college books for the upcoming semester. She has to pay $98

Neporo4naja [7]

Step-by-step explanation:

98+38+74=210

210 divided by 100= 2.1

2.1 times 7.5= $15.75

Sandy will pay $15.75 dollars in tax

4 0

3 years ago

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The total cost (in dollars) for a company to manufacture and sell x items per week is C = 40 x + 640 , whereas the revenue broug

ikadub [295]

Answer:

The company must sell 60 or 70 items to obtain a weekly profit of 200.

Step-by-step explanation:

The profit is the difference between the revenue and the cost of a given task, therefore:

$\text{profit} = R - C\\\text{profit} = 66*x - 0.2*x^2 - (40*x + 640)\\\text{profit} = 66*x - 0.2*x^2 - 40*x - 640\\\text{profit} = - 0.2*x^2 + 26*x - 640$

To have a profit of 200, we need to sell:

$-0.2*x^2 + 26*x - 640 = 200\\-0.2*x^2 + 26*x -840 = 0\text{ } *\frac{-1}{0.2}\\x^2 -130 + -4200 = 0\\x_{1,2} = \frac{-(-130) \pm \sqrt{(-130)^2 - 4*1*(-4200)}}{2*1}\\x_{1,2} = \frac{130 \pm \sqrt{16900 + 16800}}{2}\\x_{1,2} = \frac{130 \pm \sqrt{100}}{2}\\x_{1,2} = \frac{130 \pm 10}{2}\\x_{1} = \frac{130 + 10}{2} = \frac{140}{2} = 70\\ x_{2} = \frac{130 - 10}{2} = \frac{120}{2} = 60$

The company must sell 60 or 70 items to obtain a weekly profit of 200.

3 0

3 years ago

The sum of fifteen and six times a number t is eighty one what is the number

yKpoI14uk [10]

Answer: t=11 :))

Step-by-step explanation:

15+6t=81

6t=81-15

6t=66

6t/6=66/6

t=11

7 0

2 years ago