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liq [111]
2 years ago
13

X/72 = 135/90 what is x?

Mathematics
1 answer:
enot [183]2 years ago
5 0
Hey! I'll provide the steps required.

First, solved the proportion by cross multiplication.

X(90) = (135)(72)

Then use the commutative property to reorder the terms as well as multiply the numbers.

90x = 9720

Finally, divide it by 90.

x = 108
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BELL RINGER #2
NemiM [27]

Answer:

A. 2 4/5

Step-by-step explanation:

To find how many hours she worked for $210, you must get the amount of money she gets in 1 hour.

Because she charges $43 dollars every hour, and fines a fee of $30 flat, we must add both of the amount to get how many she earns in 1 hour.

So:

$45 + $30= $75

She earn $75 in 1 hour.

Next, divide $210 dollars that she earned for working for hour(s) to the amount of money she earned in 1 hour to find how many hours she worked.

So:

$210 ÷ $75= 2.8 hours

The answer is 2.8 hours

Because the given answers is in fraction, we must change the decimal into a fraction.

To change a decimal into a fraction, you must place the decimal over its place value.

Because 8 in the decimal 2.8 is in the tenths place, you must place it over 10

So:

2.8 into a decimal is 2 8/10

Simplify (only simplify if possible):

Divide 8 and 10 to their GCF which is 2.

So:

8 ÷ 2= 4

10 ÷ 2= 5

So the fraction and the answer is now:

2 4/5

I hope this helps! I'm sorry if it's wrong and too complicated.

4 0
2 years ago
A method for finding the volume of any solid for which cross sections by parallel planes have equal area is called
goldenfox [79]
The answer is D, Cavalieri's Principle 
3 0
3 years ago
A car was originally purchased in January 2010 for 27000 dollars. The car depreciates at a rate of 18% every year.
Maksim231197 [3]

Answer:

Number of year(n) = 3.4 year (Approx)

Step-by-step explanation:

Given:

Purchase value of car = $27,000

Depreciation rate per year (d) = 18% = 0.18

Future price = half of its original value = $27,000 / 2 = $13,500

Find:

Number of year(n) = ?

Computation:

Future price  =Purchase value(1-d)^n\\\\13,500=27,000(1-0.18)^n\\\\0.5=(0.82)^n\\\\n=3.444(Approx)

Number of year(n) = 3.4 year (Approx)

5 0
3 years ago
1. To solve x/ 0.4 = 10 You would:
liubo4ka [24]

(c) multiply by 0.4

given \frac{x}{0.4} = 10

multiply both sides by 0.4 to eliminate the fraction

x = 0.4 × 10 = 4

and \frac{4}{0.4} = 10


8 0
3 years ago
What is the axis of symetry for the function y=-x2+6x-4
muminat
Look it up on Photomath
8 0
2 years ago
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