All categories

3 years ago

If 18 is 45% of value, what is that value

2 answers:

8 0

Percent is parts out of 100 so
45%=45/100=9/20
'of' means multiply
18 =9/20 times something
multiply both sides by 20/9 to clear fraction
360/9=something
40=something

the value is 40

sasho [114]3 years ago

7 0

The value is 40

to find the value divide 18 by .45 (45%=.45)

You might be interested in

An alloy consists of nickel, zinc, and copper in the ratio 2:7:9.

Alexus [3.1K]

Answer:

0.4kg, 1.4kg and 1.8kg

Step-by-step explanation:

Given parameters:

Mass of alloy = 3.6kg

Ratio of elements in the alloy = 2:7:9

Unknown:

Mass of each element in the alloy = ?

Solution:

To find the mass of each element in the alloy, first find the sum of the ratio;

2+7+9 = 18

Mass of nickel = $\frac{2}{18}$ x 3.6 = 0.4kg

Mass of zinc = $\frac{7}{18}$ x 3.6 = 1.4kg

Mass of copper = $\frac{9}{18}$ x 3.6 = 1.8kg

The mass of each metal is 0.4kg, 1.4kg and 1.8kg

5 0

3 years ago

James wants to send two gifts by mail. One packages weighs 2 3/4 pounds. The other package weighs 1 3/4 pounds. What is the tota

fgiga [73]

4.5 pounds or 4 1/2 if u need fraction form.

4 0

3 years ago

What is the value of t if:<br> 1,5×174=t×4,5×87

lana66690 [7]

Can you do all calculations around T? This is called implying which would help me a lot to help you solve this

5 0

2 years ago

Need the answer ASAP

V125BC [204]

Answer:

Approximately 201 squared inches.

Step-by-step explanation:

So, the composite figure is made up of a square and a semi-circle. The square has side lengths of 12 and the semi-circle has a radius of 6.

The total area of the figure would be the area of the square plus the area of the semi-circle. Thus, find the area of each individual figure.

Square:

The area of a square is given by:

$A=l^2$

Where l is the side length.

Substitute 12 for l:

$A=(12)^2\\A=144\text{ in}^2$

So the square is 144 square inches.

Semi-circle:

The area of a semi-circle is given by:

$A=\frac{1}{2}\pi r^2$

Substitute 6 for r and 3.14 for π:

$A=\frac{1}{2}(3.14)(6)^2\\ A=56.52$

Therefore, the total area is:

$TA=144+56.52\\TA=200.52\text{ in}^2\approx201\text{ in}^2$

4 0

3 years ago

Factor the polynomial:<br> a^2 − ab −8a+8b

Blizzard [7]

Ab9 is your answer my friend

8 0

3 years ago