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4 years ago

Second time...40 pts! Find the surface area of the model below (image included).

Mathematics

1 answer:

charle [14.2K]4 years ago

5 0

5•8=40•2=80+(8•8)=144

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myrzilka [38]

Answer:

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

The container that holds the water for the football team is 1/2 full. after pouring in 9 gallons oo water, it is 4/5 full. how m

OLEGan [10]

.5x + 9 = .8x
9 = .3x
x = 30 gallons

8 0

3 years ago

Instead of dividing 400 by 16, Chip thought of an equivalent division problem that was easier for him to divide. Write an equiva

galben [10]

You can divided each by 4 and get this easy answer..

100 divided by 4= 25. Hope it helps!

5 0

3 years ago

The perimeter of the rectangle below is 65 inches.

Tems11 [23]

Answer:

A :-) Given -

perimeter = 65 inches

Side ‘a’ = 2x

Side ‘b’ = 3 1 by 4x + 1

Solution -

Perimeter = 65

= a + b = 65

= 2x + 3 1 by 4x + 1 = 65

( 3 1 by 4 = 4 x 3 + 1 = 12 + 1 by 4

= 13 by 4 )

= 2x + 13 by 4x + 1 = 65

= 2x + 13 by 4x = 65 - 1

= 2x + 13 by 4x = 64

= 15 by 4 x = 64

= x = 64 x 4 by 15

= x = 256 by 15

= x = 17.06

.:. The value of x = 17.06.

7 0

3 years ago

In 1980, the average cost of a pack of cigarettes was $0.88. In 2000, the average cost was $5.31 per pack.

yan [13]

Answer:

The average rate of change of the cost of a pack is 22 cents per year.

Another name for the average rate of change is slope.

Step-by-step explanation:

The average rate of change of the cost of a pack ( $r$ ), in monetary units per year, is equal to the change in the average cost of a pack ( $\Delta c$ ), in monetary units, divided by the change in time ( $\Delta t$ ), in years. Then, the average rate of change is:

$r = \frac{\$\,5.31-\$\,0.88}{2000-1980}$

$r = \$\,0.22\,\frac{1}{yr}$

The average rate of change of the cost of a pack is 22 cents per year.

Another name for the average rate of change is slope.

8 0

3 years ago