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GarryVolchara [31]

1 year ago

12

the average car on the highway travels 65 miles per hour. if someone has been driving for 4.5 hours how many miles have they dri

ven (Help)

1 answer:

11Alexandr11 [23.1K]1 year ago

3 0

Answer:

292.5

Step-by-step explanation:

Since they are driving 65 miles for every hour, you can multiply the 65 miles by 4.5

So:

65 * 4.5 = 292.5

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Which expression is equivalent to 36 / 4?

barxatty [35]

Answer:

9

Step-by-step explanation:

divide 36 by 4 and its nine

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2 years ago

Im having a hard time plss help

Dahasolnce [82]

The 2nd one is right
112.5 divided by 15 is 7.5

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Which equations support the fact that rational numbers are closed under addition?

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What type of conic is given by the equation 4x^2+9y^2=36

zvonat [6]

Answer:

This is equation of ellipse

Step-by-step explanation:

we are given

$4x^2+9y^2=36$

We can see that right side is 36

so, we can make right side as 1 by dividing both sides by 36

$\frac{4x^2+9y^2}{36} =\frac{36}{36}$

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$\frac{4x^2}{36}+\frac{9y^2}{36} =1$

we can simplify it

$\frac{x^2}{9}+\frac{y^2}{4} =1$

we can rewrite it as

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8 0

2 years ago

In a class, 60% of the students are girls. There are 18 girls in the class. How many boys are in the class? How many students ar

seraphim [82]

Percentage of students that are girls in the class = 60%
Number of girls in the class = 18
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Then
60% * x = 18
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6x = 18 * 10
6x = 180
x = 180/6
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So the total number of students in the class is 30.
Number of boys in the class = 30 - 18
= 12
So there are 12 boys in the class. I hope the procedure is simple enough for you to understand.

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2 years ago

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