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wolverine [178]

3 years ago

8

Red Hook High School has 480 freshmen. Of those freshmen, 333 take Algebra, 306 take Biology, and 188 take both Algebra and Biol

ogy. Which of the following represents the number of freshmen who take at least one of these two classes?
a
639
b
384
c
451
d
425

1 answer:

Aleksandr [31]3 years ago

5 0

The answer is c
Explain

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3 years ago

A manufacturer of industrial solvent guarantees its customers that each drum of solvent they ship out contains at least 100 lbs

Hitman42 [59]

Answer:

Step-by-step explanation:

Let X be the solvent present

Then given that the manufacturer of industrial solvent guarantees its customers that each drum of solvent they ship out contains at least 100 lbs of solvent.

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3 years ago

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Helen [10]

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2 years ago

8.5x+51.86=-11.5x+51.76

solniwko [45]

Add, -11.5x and move it over to 8.5x

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3 years ago

Using a graphical method, solve the simultaneous equations x+y =4 and y=2x+1

adoni [48]

Answer:

(1, 3)

Step-by-step explanation:

Given the expression

x+y = 4 ... 1

y = 2x+1 ....2

Substitute equation 2 into 1

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3x + 1 = 4

3x = 4-1

x = 3/3

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Since y = 2x + 1

y = 2(1) + 1

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Hence the solution to the equation is (1,3). This means that the coordinate point on the graph where both lines intersect will be at (1, 3)

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2 years ago