Which pair of ratios is proportionalA. 4/9 and 16/45
B.5/12 and 25/144
C. 12/18 and 18/27
D. 15/20 and 7/10

Answers

Answer 1
Answer: A. 4/9 and 16/45
16 / 4 = 4
45 / 9 = 5
Disproportional 

B.5/12 and 25/144
25 / 5 = 5
144 / 12 = 12
Disproportional

C. 12/18 and 18/27
18 / 12 = 3/2
27 / 18 = 3/2
Proportional

D. 15/20 and 7/10
7 / 15 = 7/15
10 / 20 = 1/2
Disproportional 

Answer: (c)
Answer 2
Answer: Let us check each of these.

A) 4/9 and 16/45
or, 1.44 and 1.355
1.44 ≠ 1.355    ( Wrong)


B) 5/12 and 25/144
or, 1.416 and1.17
1.416 ≠ 1.17    (wrong)


C) 12/18 and 18/27

or, 1.66 and 1.66
1.66 = 1.66    (Correct)


D) 15/20 and 7/10
=0.75 and 0.70
0.75 ≠ 0.70

Thus, the answer is (C)

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What is the volume of a cube with 1/3 inch sides

Answers

cube is a shape with all sides equal

where length - 1/3 inches

width - 1/3 inches

height - 1/3 inches

the formula to find volume is as follows

volume = (1)/(3) *(1)/(3) * (1)/(3)

numerators should be multiplied by numerators and denominators by denominators

volume = (1*1*1)/(3*3*3) = (1)/(27)

volume of the cube is 1/27 in.³

The formula for cube volume is s^3=volume
1/3*1/3*1/3=1/27

What is 1% of $80 equal

Answers


Well, OF is kind of the same with multiplication. So that question is indirectly saying 1%x$80. As you know, percent means over 100. So that will be;

1/100x$80

1/100 is 0.01. So that means 0.01x$80. And that is 0.8. So the answer is 0.8. Hope I helped.

A student received a coupon for 14% off the total purchase price at a clothing store. Let c be the original price of the purchase. The expression c - 0.14c represents the new price of the purchase. Write an equivalent expression to show another way to represent the new price.

Answers

The equivalent expression to show another way to represent the new price will be 0.86c.

What is an equivalent expression?

The equivalent is the expression that is in different forms but is equal to the same value.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

A student received a coupon for 14% off the total purchase price at a clothing store. Let c be the original price of the purchase. The expression c - 0.14c represents the new price of the purchase.

Then the equivalent expression is given as,

⇒ c - 0.14c

⇒ 0.86c

The equivalent expression to show another way to represent the new price will be 0.86c.

More about the equivalent link is given below.

brainly.com/question/889935

#SPJ5

the expression would be 0.86c since 100-14=86, so 86% is left

What is four and fifteen thousandths using base ten numerials

Answers

Hey There!

Let's solve this problem together!

Four and fifteen thousandths using base ten numerals is  4.015


How do you write a decimal as a percent

Answers


Take the decimal, and move the decimal point two places that way  ===> .

if u have .456 u move the decimal back two spaces so it becomes 45.6%

The perimeter of a paralleogram is 140 cm. find lenghts of sides. Please provide explanation!

Answers

Answer:

The length of the sides of this parallelogram are 40 cm and 30 cm

Step-by-step explanation:

1. Let's check all the information provided to find the length of the sides of the parallelogram:

Perimeter = 140 cm

Length of  the sides: x + 10 and 2x

2. Let's find the value of x and in this way, the length of the sides:

Recall that the perimeter of any parallelogram is the sum of its four sides, thus for this specific parallelogram, we have:

Perimeter = 2x + 2x + x + 10 + x + 10

We know that the perimeter is 140, we substitute in the equation:

140 = 2x + 2x + x + 10 + x +10

140 = 6x + 20

140 - 20 = 6x (Subtracting 20 at both sides)

120 = 6x

120/6 = x (Dividing by 6 at both sides)

20 = x

Now we can calculate the length of the sides:

Lower side is x + 10

20 + 10 = 30 cm

Higher side is 2x

2 * 20 = 40 cm

Perimeter = 30 + 30 + 40 + 40

Perimeter = 140 cm