Can 12/21 and 15/24 form a proportion?

2 answers:

7 0

12/21
= (12/3) / (21/3)
= 4/7

15/24
= (15/3) / (24/3)
= 5/8

Because 4/7 ≠ 5/8, 12/21 and 15/24 cannot form a proportion~

Tasya [4]3 years ago

5 0

To know if two fractions are proportionate, we need to cross multiply the fractions, if their cross products are equal, then they are proportionate, if not then they are not proportionate, however we can solve for the number that will make each fraction proportionate to the other.

12/21 = 15/24

cross multiply.

12*24 = 15*21
288 = 315 * not proportionate

because we use the 1st fraction as basis, we need to adjust the 2nd fraction to make it proportionate to the 1st fraction.

12/21 we can multiply the fraction by any number as long as we multiply the number to both numerator and denominator to keep the 2nd fraction in proportion to the first fraction.

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1.17 − 0.07a + (−3.92a) What is this ????

umka21 [38]

Answer: 17-3.99a

Step-by-step explanation:

Remove parentheses.

17- 0.07a- 3.92a17−0.07a− 3.92a

Collect like terms.

17+(−0.07a−3.92a)

Simplify.

17−3.99a

7 0

3 years ago

The top of a tower is a cone with a radius of 12 feet. The volume of the cone is 1,506.96 cubic feet. Which of these is the heig

shepuryov [24]

<span>the question does not have the options, but this does not limit its resolution
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we know that
volume of the cone=(1/3)*pi*r²*h
where
r is the radius of the cone
h is the height of the cone
r=12 ft
Volume=1506.96 ft³
h=?

clear the variable h
v=(1/3)*pi*r²*h-----> multiply by 3
3*v=pi*r²*h----> divided by (pi*r²)
h=3*v/(pi*r²)------> h=3*1506.96/(pi*12²)----> h=9.99 ft---> h=10 ft

the answer is
h=10 ft

7 0

3 years ago

11 times what give you 187

mr_godi [17]

17. 187 divided by 11 equals 17.

6 0

3 years ago

Read 2 more answers

I need help with this

Vladimir [108]

Answer:

{4,5} value makes the inequality

Step-by-step explanation:

4+1>4

5+1>4

4 0

3 years ago

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write an equation of the line passing through (6,-5) parallel to a line with 4/3 .write the final answer in slope-intercept form

AURORKA [14]

The equation of line passing through (6,-5) and parallel to line with slope 4/3 is:

y=\frac{4}{3}x-13

Further explanation:

Given

Slope of line= 4/3

Point = (6,-5)

As the given line is parallel to the line whose slope is given. This means that the slope of the required line will be same as parallel lines have equal slope.

The general form of point-slope form is:

$y=mx+b$