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3 years ago

10

This year, gasoline costs $4 per gallon. This is a 125% increase over the cost 3 years ago. What expression can be used to deter

mine the cost of gasoline three years ago?

1 answer:

pochemuha3 years ago

7 0

The equation would be, 4/125%.

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I need help and it due tomorrow!!! ill give aomethe brainlest answer

DochEvi [55]

Answer:

The measure of the indicated angle is 142°

Step-by-step explanation:

The sum of the measures of the interior angles of a polygon is

∑m = (n - 2) × 180°, where

n is the number of its side or its angles

In the given figure

∵ The polygon has 6 angles

∴ n = 6

→ Use the rule above to find the sum of the measures of its interior ∠s

∵ ∑m = (6 -2) × 180°

∴ ∑m = 4 × 180°

∴ ∑m = 720°

∵ The measures of its interior ∠s are (2x - 50)°, (x + 40), 80°, (x + 20)°,

x°, 150°

→ Add them to find their sum

∴ ∑m = 2x - 50 + x + 40 + 80 + x + 20 + x + 150

→ Add the like terms in the right side

∴ ∑m = (2x + x + x + x) + (-50 + 40 + 80 + 20 + 150)

∴ ∑m = 5x + 240

→ Equate the right sides of ∑m

∵ 5x + 240 = 720

→ Subtract 240 from both sides

∴ 5x + 240 - 240 = 720 - 240

∴ 5x = 480

→ Divide both sides by 5

∴ x = 96

→ To find the indicated angle substitute x in its measure by 96

∵ The measure of the indicated angle = 2(96) - 50

∴ The measure of the indicated angle = 192 - 50

∴ The measure of the indicated angle = 142°

5 0

2 years ago

Can smby plz help me ?!

NARA [144]

Omgggg an iready diagnostic..

6 0

2 years ago

The volume of Jupiter is approximately 1014 cubic kilometers. The volume of Earth is approximately 1011 cubic kilometers. How ma

Lilit [14]

a 10^-3 i hope this helps you .

5 0

3 years ago

CAN SOMEONE HELP ME WITH THIS

Zielflug [23.3K]

Answer:

8 $\frac{2}{3}$

Step-by-step explanation:

Find the LCD of the two fractions, which is six

3 $\frac{1}{2}$ = 3 $\frac{3}{6}$

---------------------------------------------------------------------------------------------------------------

5 $\frac{1}{6}$ + 3 $\frac{3}{6}$ = 8 $\frac{4}{6}$

The next step is to reduce:

8 $\frac{4}{6}$ = 8 $\frac{2}{3}$

---------------------------------------------------------------------------------------------------------------

Have a great summer :)

3 0

2 years ago

Read 2 more answers

Math question! I appreciate any help!

saw5 [17]

Lateral faces are all the sides of the prisms EXCEPT the bases, which are the sides on the top and bottom. To find the area of the lateral faces we can use the formula: perimeter x height.

perimeter = 2 (6 + 8) = 2 x 14 = 28
height = 14
area of the lateral faces = perimeter x height = 28 x 14 = 392

Hope this helps!

6 0

3 years ago