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ExtremeBDS [4]
2 years ago
8

there is a total of 10 pages of homework. sophia worked on some pages on monday if she has 3 pages left how many pages did sophi

a work on monday?
Mathematics
1 answer:
Oxana [17]2 years ago
3 0

Answer:

7

Step-by-step explanation:

Since, Sophia had three pages of homework and she only has three left you can set up an equation to solve. The equation would be 10=x-3, then you just solve the equation which would be 7, hope that helped.

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Among 500 freshmen pursuing a business degree at a university, 315 are enrolled in an economics course, 213 are enrolled in a ma
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Answer:

Step-by-step explanation:

Given that among 500 freshmen pursuing a business degree at a university, 315 are enrolled in an economics course, 213 are enrolled in a mathematics course, and 123 are enrolled in both an economics and a mathematics course.

From the above we find that

a) either economics of Math course is

315+213-123 =405

Out of 500 students 405 have taken either Math or Economics

Hence

c) student who have taken neither = 500-405 =95

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= 405-123 = 282

3 0
3 years ago
Which of the following could be the lengths of the sides of a 45°-45°-90° triangle?
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I think the answer is c
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How do you factorize (x-2) ^2-(x+3)^2?<br>​
vaieri [72.5K]

Answer:

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Step-by-step explanation:

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3 years ago
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5 0
3 years ago
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The height of a rectangle is increasing at a rate of 3 centimeters per hour and the width of the rectangle is decreasing at a ra
n200080 [17]

Answer:

Rate of change of the area of the rectangle at that instant = 7 cm²/hr.

Step-by-step explanation:

Area of rectangle = Height x Width

A = hw

The height of a rectangle is increasing at a rate of 3 centimeters per hour and the width of the rectangle is decreasing at a rate of 4 centimeters per hour.

\texttt{Rate of change of height = }\frac{dh}{dt}=3cm/hr\\\\\texttt{Rate of change of width = }\frac{dw}{dt}=-4cm/hr

Differentiating area with respect to time,

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We need to find rate of change of area when the height is 5 centimeters and the width is 9 centimeters.

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Rate of change of the area of the rectangle at that instant = 7 cm²/hr.

5 0
3 years ago
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