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ad-work [718]
3 years ago
8

Melinda spend 4 hours reviewing for her midterm exams. She spend 1/4 of the time studying for social studies. How many hours did

she spend on social studies?
Mathematics
1 answer:
galben [10]3 years ago
3 0
Hello!

To find this you have to divide the total number of hours studied by the time spent studying social studies

This can be done by does 4 * 0.25 = 1

The answer is 1 hour

Hope this helps!
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pickupchik [31]
(x+5)(x-3)[x-(4-i)][x-(4+i)]
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(x^{2}+5x-3x-15)(x-4+i)(x-4-i)
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(x^{2}+5x-3x-15)(x^{2} -4x-xi-4x+16+4i+xi-4i- i^{2} )
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(x^{2}+5x-3x-15)( x^{2} -8x+16- i^{2})
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6 0
3 years ago
The total cost (in dollars) for a company to manufacture and sell x items per week is C(x)=50x+400. If the revenue brought in by
Vedmedyk [2.9K]

Answer:

$720

Step-by-step explanation:

Given the following functions

Cost function C(x)=50x+400

Revenue function R(x)=80x-0.05x^2

P(x)=R(x)−C(x).

Profit function P(x) = 80x-0.05x^2 - (50x+400)

P(x) = 80x-0.05x^2 - 50x - 400

Substitute x = 40

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P(40) = 3200-80-2000-400

P(40) =3200-2480

P(40) = 720

Hence the amount of profit made is $720

4 0
3 years ago
What can 39/40 be reduced to
Galina-37 [17]
It can't they have no common factor
5 0
3 years ago
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quester [9]

Answer:

The difference between 19 and 8 is 11.

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Given:

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Let the unknown number be =x

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We are given that the difference =11

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Using additive property to solve for x

Adding 8 to both sides to isolate x on one side.

x-8+8=11+8

∴ x=19

∴ The unknown number = 19

6 0
3 years ago
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The equation is 49 times .15 which equals 7.35 then you add that to 49 which equals 56.35. Hope that helps and sorry if its wrong

6 0
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