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makvit [3.9K]
3 years ago
13

An ice sculpture is melting at a constant rate. It's weight changes -1 4/5 pounds every hour. What is the total change in weight

of the sculpture after 3 1/2 hours?
Mathematics
2 answers:
nika2105 [10]3 years ago
7 0

Answer:

-6 3/10 pounds

Step-by-step explanation:

The weight of ice sculpture changes -1 4/5 pounds every 1 hour.

In 3 1/2 hours, multiply the time with the weight.

-1 4/5 × 3 1/2

Multiply.

-9/5 × 7/2

-63/10 = -6 3/10

melomori [17]3 years ago
4 0

Answer:

It will decrease by 6  3/10 lbs in the 3 1/2 hours

Step-by-step explanation:

The rate is -1 4/5 lbs  per hour

The time is 3 1/2 hours

Multiply to find the weight change

-1 4/5 * 3 1/2

Change to improper fractions

- ( 5*1 +4) /5 * ( 2* 3+1)/2

- 9/5 * 7/2

-63/10

Changing back to a mixed number

-6  3/10

It will decrease by 6  3/10 lbs in the 3 1/2 hours

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Multiply the sum of -13/8 and 5/12 by their difference.​
REY [17]

Answer:

1421/576

Step-by-step explanation:

Sum = - 13/8 + 5/12 = - 39/24 + 10/24 = - 29/24

Difference = - 13/8 - 5/12 = - 39/24 - 10/24 = - 49/24

Sum * Difference = (-29/24)*(-49/24) = 1421/576

6 0
2 years ago
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Umnica [9.8K]

Answer:

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3 years ago
If you can purchase 5 pounds for $4, how many pounds can you purchase for $16? *
Julli [10]

Answer:

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Step-by-step explanation:

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Find the product of (x+3) (x+3)
MA_775_DIABLO [31]

Answer:

x^{2} + 9x

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7 0
3 years ago
01. Apenas uma das matrizes abaixo é, ao mesmo tempo, quadrada, diagonal e identidade. Identifique-a: a[0,1,0,1]. B[1,0,0,1]. C[
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Responder:

b)

1 0

0 1

Explicação passo a passo:

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Para ter uma matriz diagonal, todas as entradas fora da diagonal principal serão Zero.

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