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3 years ago

7

the cost of a pencil is 25 cents more than the cost of an eraser. if the cost of 8 pencils and 10 erasers is 12.80 dollars, find

the cost of each

1 answer:

Dmitry_Shevchenko [17]3 years ago

3 0

I hope this helps you

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Help please if you know it

PSYCHO15rus [73]

See how there are two rectangle prisms? Find the area of both of them separate, and then add the two answers together.

Hope this helps!!

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3 years ago

An angle measures 98° less than the measure of its supplementary angle. What is the measure of each angle?

Tema [17]

Answer: 41 and 139 degrees

Step-by-step explanation:

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2 years ago

The graph of the equation below is a circle. What is the length of the radius of the circle?

storchak [24]

Answer:

17

Step-by-step explanation:

(X-4)2+(y+12)2=17^2

radius is square root of 17^2

4 0

3 years ago

Y = x^2 + 2x - 8 Solve with zeros

Katen [24]

Answer:

x=-4 x=2

Step-by-step explanation:

y = x^2 + 2x - 8

Set equal to zero

0 = x^2 + 2x - 8

Factor

What two numbers multiply to -8 and add to 2

4 * -2 = -8

4+-2 = 2

0=(x+4) ( x-2)

Using the zero product property

x+4 =0 x-2 =0

x=-4 x=2

6 0

3 years ago

The demand function of blankets at COMESA is given by the equation P=60-2Q find the units of good Q ,when P=12 and use integrati

lions [1.4K]

Answer:

a. 24

b. 864

Step-by-step explanation:

a. The demand function is:

P = 60 - 2Q

When P = 12:

12 = 60 - 2Q

2Q = 60 - 12

2Q = 48

Q = 48/2 = 24

b. Consumer surplus is given as the integral of Demand function:

$CS = \int\limits {[P(Q) - (p)(Q)] \ dQ\\$

This implies that:

$CS = \int\limits {60 - 2Q} \, dQ\\\\CS = 60Q - Q^2\\\\CS = (60 * 24) - 24^2\\\\CS = 1440 - 576\\\\CS = 864$

7 0

3 years ago