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2 years ago

You are traveling in a car. Your speed is 40 miles per hour. What is your speed in feet per minute? Please explain

Mathematics

1 answer:

Ivan2 years ago

8 0

Answer:

3520 ft per minute

Step-by-step explanation:

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10+5-7=3y -10x+5x+5=-15 3x+2x-4x+10 pre algebra 8th grade math

jasenka [17]

Answer:

1) y=8/3=2 2/3 2) x=4 3) x+10

Step-by-step explanation:

1) 10+5-7=3y

Calculate the sum or difference.

8=3y

Swap the sides of the equation.

3y=8

Divide both sides by 3.

y=8/3=2 2/3

2) -10x+5x+5=-15

Collect like terms.

-5x+5=-15

Move the constant to the right-hand side and change the sign.

-5x=-15-5

Calculate the difference.

-5x=-20

Divide both sides by -5.

x=4

3) 3x+2x-4x+10

Collect like terms.

(3+2-4)x+10

Calculate the sum or difference.

1x+10

When the term has a coefficient of 1, it doesn't have to be written.

x+10

Hope this helps :)

5 0

2 years ago

Help me please, it's easy kinda

trasher [3.6K]

Karl ate 5/6 of a small bag of popcorn .

7 0

2 years ago

Read 2 more answers

What is the relationship between the segments PQ and P’Q’

cupoosta [38]

Answer:

$\frac{PQ}{P'Q'}=2.5$

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is equal

In this problem Triangles OQP and OQ'P' are similar by AA Similarity Postulate

$\frac{PQ}{P'Q'}=\frac{OP}{OP'}$

we have

$OP=12-2=10\ units$

$OP'=6-2=4\ units$

substitute

$\frac{PQ}{P'Q'}=\frac{10}{4}=2.5$

5 0

3 years ago

Area of a circle is 80 cm². Work out the circumference of the circle.

GuDViN [60]

Answer:

The circumference of circle is: 31.714 cm

Step-by-step explanation:

Let C be the circumference of the circle

And A be the area of circle

It is given that:

$A = 80cm^2$

We have to find the radius first so that it can be used to find the circumference

The area of circle is given by the formula:

$A = \pi r^2$

Putting the value of area

$80 = 3.14 * r^2\\\frac{80}{3.14} = r^2\\r^2 = 25.477$

Taking square root on both sides

$\sqrt{r^2} = \sqrt{25.477..}\\r = 5.0475\ cm$

Now

$C = 2\pi r$

Putting the value of radius

$C = 2 * 3.14 * 5.05\\C = 31.714\ cm$

Hence,

The circumference of circle is: 31.714 cm

3 0

2 years ago

Hello can you please help me posted picture of question

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2 years ago