3 years ago

What's a proportion that can be used to find out how many points a student needs to reach 78 percent on a 50 point quiz?

Mathematics

1 answer:

Katarina [22]3 years ago

7 0

Hope this helps
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Equations

Flauer [41]

Answer:

Step-by-step explanation:

-3x + 4y = -18

8x - 4y = 28

5x = 10

x = 2

4 - y = 7

-y = 3

y = -3

(2, -3)

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3 years ago

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Would the owners of the company be happier if the slope was steeper or flatter?

marissa [1.9K]

Steeper is better than flatter

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Part II: Describe the pattern of the following sequence. (2 points)

Marizza181 [45]

1 subract 6

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3 add 11

4 subract 5

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2 years ago

The selling price of a television in a retail store is $66 less than 3 times the wholesale price. If the selling price

Anna71 [15]

Answer:

899 + 66 = 3*X, X being the wholesale price.

965 = 3*x -> x = 965/3 -> x = 321.66 (and 2/3 of a cent)

Step-by-step explanation:

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3 years ago

An object is launched from a platform.

Bess [88]

Answer:

60 feet

Step-by-step explanation:

The height, h (in meters), of the object launched from a platform is represented by the equation

$h=h(x)=-5x^2+20x+60$

where x is the time (in seconds) passed after the launch.

The time of launch is $x=0$ (0 seconds passed after the launch)

Substitute $x=0$ to find the height:

$h=h(0)=-5\cdot 0^2+20\cdot 0+60=60\ feet$

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4 years ago