3 years ago

The difference between a number divided by 3 and 4 is 20

1 answer:

8 0

Set the number to x.

$\frac{x}{3}-\frac{x}{4}=20$
$\frac{4x}{12}-\frac{3x}{12}=20$
$\frac{x}{12}=20$
$x=240$

Thus, the number is 240.

You might be interested in

Find the area of a circle whose radius is 12 in. Round to the nearest 10

Ksivusya [100]

Answer:

Area = pi r²

area = 22/7 × 12 × 12 = 452.57 in²

7 0

3 years ago

Convert a fraction to a decimal number . <br> 8 divided by 3.000. PLEASE HELP ME !!!!!!

RoseWind [281]

Answer:

2.67

Step-by-step explanation:

7 0

3 years ago

if you spend d dinars for g identical pair of glasses a friend claims that d if you increase g and increases if you increase d e

trasher [3.6K]

No, d depends on g my friend

3 0

2 years ago

in a 41-49 right triangle, the hypotenuse is 28.83 centimeters. if cos 41= 0.7547, find the length of the side opposite the 49 a

grigory [225]

Answer:

21.758

Step-by-step explanation:

If you draw the triangle out, you find that cos 41 = x/28.83, when x is equal to the side opposite the 49 angle

Simplify this into 28.83 cos 41, and plug it into the calculator and you get

21.75827.

3 0

3 years ago

Recall that two angles are complementary if the sum of their measures is 90°. Find the measures of two complementary angles if o

nirvana33 [79]

Answer:

The two angles are 69° and 21°.

Step-by-step explanation:

Write out the expression:

let x and y be two angles that are complementary and the sum of their measures is 90°

-> x° + y° = 90°

if one angle is 6º more than three times the other angle:

-> x° = 6° +3y°

Plug x = 6+3y into x° + y° = 90°

6° + 3y° + y° = 90°

Solve for y

4y° = 84°

y° = 21°

Plug y into x° + y° = 90°

x° + 21° = 90°

Solve for x°

x° = 90° - 21° = 69°

4 0

3 years ago