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4 years ago

13

A car is traveling at a rate of 81 kilometers per hour. What is the car's rate in kilometers per minute? How many kilometers wil

l the car travel in 10 minutes?

1 answer:

shusha [124]4 years ago

8 0

Only doing thos for the getting to knothinf

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The vertex form of the equation of a parabola is y = 2(x+ 3)2 - 5.

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The answer would be 4x+7

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3 years ago

2. in a class of 50 students, the number of females is 2 more than 5 times the number of males. How many males and females are t

Ber [7]

Answer:

There are 8 males in the class and 42 females.

Step-by-step explanation:

This question can be solved using a system of equations.

I am going to say that:

x is the number of females.

y is the number of males.

Class of 50 students

This means that $x + y = 50$

The number of females is 2 more than 5 times the number of males.

This means that $x = 5y + 2$

So, finding y, the number of males:

$x + y = 50$

$5y + 2 + y = 50$

$6y = 48$

$y = \frac{48}{6}$

$y = 8$

Females:

$x = 5y + 2 = 5*8 + 2 = 42$

There are 8 males in the class and 42 females.

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2 years ago

2x – 3y = 15<br><br><br>-2x + y = -1

KengaRu [80]

Answer: -y=7

Explanation:

Think of your problem as subtraction:

2x-3y+15

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3 years ago

A restaurant manager determined that about 12 of all customers would wait 20 minutes or more for a table. Which simulation could

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If you want a brief answer you should give context of what needs to be answered. Like for instance show the picture given or write the answer options so people know what to choose from so you can get the correct answer needed to be given. Just a tip.

Step-by-step explanation:

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