Mathematics Middle School

You can solve the following proportion by cross multiplying. What will the equation be after you cross multiply?

3/9 = x/15

You Can Solve The Following Proportion By Cross Multiplying. What Will The Equation Be After You Cross

Answers

Answer 1
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

3/9-(x/15)=0
x
Simplify ——
15

3 x
—— —— = 0
9 15

1
Simplify ——
3

1 x
—— —— = 0
3 15

... the answer is : x = 5
Answer 2
X = 5 is the answer

Related Questions

Order the following numbers from least to greatest.
-2, 1.7, -5/2

Answers

Answer:

Step-by-step explanation:

－5/2<－2<1.7

use number line

Yesterday noah ran 2 1/2 miles in 3/5 hour. Emily ran 3 3/4 miles in 5/6 hour. Anna ran 3 1/2 miles in 3/4 hour how fast in miles per hour did each person run? Who ran the fastest? !!SHOW WORK!!

Answers

Answer:

Step-by-step explanation:

To calculate the speed of each one we proceed as follows:

speed=distance/time

a] Noah's speed:

distance=2.5 miles

time=3/5 hours

speed=(2 1/2)/(3/5)

=(5/2)/(3/5)

=5/2×5/3

=25/6

=4 1/6 mi/hr

Emily's speed

distance=3 3/4 miles

time=5/6 hour

thus

speed=(3 3/4)/(5/6)

=15/4)/(5/6)

=15/4×6/5

=4 1/2 mi/hr

Anna's speed:

distance=3 1/3 miles

time=3/5

speed=(3 1/3)/(3/5

=(10/3)/(3/5)

=10/3×5/3

=5 5/9 mi/hr

Anna was the fastest

Ellena knows that 1/5 written as a decimal is 0.2. How can Ellema use this information to find the decimal equivalent for 9/5 without doing 9 divided by 5?

Answers

The answer is 1.0 I believe

I hope this helped :)

The decimal equivalent for 9/5 without doing 9 divided by 5 is 4.5

How to convert from decimal to fraction?

For conversion from decimal to fraction, we write it in the form a/b such that the result of the fraction comes as the given decimal. Usually, to get the decimal of the form a.bcd, we count how many digits are there after the decimal point (if its finite), then we write 10 raised to that many power as denominator, and the considered number without any decimal point as numerator.

WE are given that Ellena knows that 1/5 written as a decimal is 0.2.

Thus  Ellema use this information to find the decimal equivalent for 9/5 without doing 9 divided by 5

By multiplying 0.2 by 9 we can get the decimal equivalent of 9/5.

0.2 x 9 = 4.5

Hence, the decimal equivalent for 9/5 without doing 9 divided by 5 is 4.5

Learn more about place value here:

https://brainly.com/question/17983725

#SPJ2

Help Help Help Help...What does it take for an orbiting spacecraft to escape its orbit?

Answers

Answer:

Manual Override??

Step-by-step explanation: I'm prop wrong

Answer:

To leave its orbit, the spacecraft must go very fast to break free of gravity.

Step-by-step explanation:

A cardboard box has a volume that is 6,336 cubic inches. A company creates a new design with the same proportions, but instead the dimensions are One-fourth the dimensions. Explain how you can find the volume of the new design without knowing the dimensions.

Answers

Answer:

Cube the scale factor 0.25. Then multiply the volume of the box by 0.015625.

Answer:

Since the dimensions have a proportional relationship, the new volume can be calculated using the original volume and the scale factor. The new volume will be the cube of the change, which is 1

64

. The new volume is the product of 6,336 and 1

64

.

Step-by-step explanation:

that is the sample answer.

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