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3 years ago

If a/b and c/d are rational expressions, then which of the following is true?

Mathematics

1 answer:

tatiyna3 years ago

4 0

It’s al going to be true

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A building casts a shadow 48feet long. At the same time,a 40 foot tall flagpole casts a shadow 9.6 feet long. What is the height

max2010maxim [7]

Let the height of the shadow be x.
Ratio of length of shadow to height: 48/x = 9.6/40
x = (48 x 40)/9.6 = 200 feet.

8 0

3 years ago

Write 405,612 in expanded form

Bingel [31]

Expanded Notation Form:
400,000 +0 +5,000 +600 +10 +2
Expanded Factors Form:
4 ×100,000 +0 ×10,000 +5 ×1,000 +6 ×100 +1 ×10 +2 ×1
Expanded Exponential Form:
4 × 105+0 × 104+5 × 103+6 × 102+1 × 101+2 × 10<span>0

</span>

4 0

3 years ago

Read 2 more answers

5. Ashley runs 5/8 miles in 4 minutes 30 seconds. Josh runs 3/4 mile in 5 minutes 15 seconds. Who

sp2606 [1]

Answer:

Step-by-step explanation:

5 0

3 years ago

10 2.5 16 4 ? 7.5 48 12 Which statement explains how to find the number of minutes it takes to bike 7.5 miles? Find the ratio of

svet-max [94.6K]

Answer:

Find the ratio of minutes to miles, 4:1. Multiply 7.5 by 4.

Step-by-step explanation:

Given

Minutes: 10 || 16 || ? || 48

-----Miles: 2.5 || 4 || 7.5 || 12

Required

Which statements solve for the missing value?

First, we need to calculate the ratio of minutes to mile

$Ratio = \frac{Minutes}{Mile}$

When minutes = 16; mile = 4

So, we have:

$Ratio = \frac{16}{4}$

$Ratio = 4$

Next, we multiply the ratio by 7.5

$Minutes = Ratio * 7.5$

$Minutes =4 * 7.5$

$Minutes = 30$

<em>Hence, option B answers the question.</em>

7 0

3 years ago

I have a two expressions 3z-4 and 2z+5

aleksley [76]

Answer:

The answers are 3z-16 and 2z+10

Step-by-step explanation:

Do 3 x z (3z) and then do 3 x 4 (16) and then you got 3z-16

Do 2 x z (2z) and then do 2 x 5 (10) and then you got 2z + 10

6 0

3 years ago