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Nutka1998 [239]

3 years ago

11

To pass a math test students must correctly answer at least 0.6 of the questions Donald score is 5/8 Karen score is 4/5 how many

of the students passed the test

1 answer:

ivolga24 [154]3 years ago

8 0

Answer:

Step-by-step explanation:

Donald's score, rewritten as a decimal fraction, is 0.625.

Karen's, similarly rewritten, is 0,8.

Because both of these scores are greater than 0.6, both students passed.

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slava [35]

Answer:

88 is a solution to 1/8 x =11, since a solution means that x is equal to that number, so in this scenario, x=88. When substituted(88*0.125), the same answer, 11, is obtained.

Step-by-step explanation:

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3 years ago

I need help with my math

mrs_skeptik [129]

Answer:

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Step-by-step explanation:

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2 years ago

A tree in Kevin's backyard is 5/8 meters tall. It has been growing for 1 2/5 years. What is the unit rate in meters per year? No

irga5000 [103]

Answer:

o.4464287142 or 0.4

Step-by-step explanation:

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6 0

2 years ago

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if you throw a rubber ball toward the ground at an angle, it will bounce up feom the ground at the same angle. find the unknown

Sauron [17]

30°

A strait line is 180°
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5 0

2 years ago

a group of astronauts launched a model rocket from a platform. Its flight path is modeled by h= -4t^2+24t+13 where h is the heig

Eddi Din [679]

Answer:

6.5 seconds

Step-by-step explanation:

Keep in mind that when $h=0$ , this is the same height for both when the model rocket takes off and lands, so when the rocket lands, time is positive. Thus:

$h=-4t^2+24t+13\\\\0=-4t^2+24t+13\\\\t=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\ \\t=\frac{-24\pm\sqrt{24^2-4(-4)(13)}}{2(-4)}\\ \\t=\frac{-24\pm\sqrt{576+208}}{-8}\\\\t=\frac{-24\pm\sqrt{576+208}}{-8}\\\\t=\frac{-24\pm\sqrt{784}}{-8}\\\\t=\frac{-24\pm28}{-8}\\\\t=\frac{-24-28}{-8}\\ \\t=\frac{-52}{-8}\\ \\t=\frac{52}{8}\\\\t=6.5$

So, the amount of seconds that the model rocket stayed above the ground since it left the platform is 6.5 seconds

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2 years ago

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