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2 years ago

Math

Mathematics

2 answers:

garik1379 [7]2 years ago

8 0

Answer:

A. (7.2 +0.4) + 2x

Step-by-step explanation:

7.2 +1 (2x + 0.4)

7.2 + 2x + 0.4

7.6 + 2x or 2x + 7.6

A. (7.2 +0.4) + 2x

7.6 + 2x or 2x + 7.6

This one is correct

B. (7.2 +0.4) + 2

7.6 + 2

9.6

This one is INcorrect

C. (7 + 2) + 2x

9 + 2x or 2x + 9

This one is INcorrect

D. 7.2 + (2 +0.4)

7.2 + 2.4

9.6

This one is INcorrect

Hope this helps!

Snezhnost [94]2 years ago

3 0

$\qquad \qquad\huge \underline{\boxed{\sf Answer}}$

Here's the solution ~

$\qquad \sf \dashrightarrow \: 7.2 + (2x + 0.4)$

$\qquad \sf \dashrightarrow \: 7.2 + 2x + 0.4$

$\qquad \sf \dashrightarrow \: 7.2 +0.4 + 2x$

$\qquad \sf \dashrightarrow \: (7.2 +0.4) + 2x$

Therefore, the correct choice is A

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Mervin has some cartons of milk. He sold 2/5 of milk in the morning. He sold 3/4 of the remainder in the afternoon. 24 more cart

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Answer:

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Step-by-step explanation:

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An electric utility company determines the monthly bill for a residential customer by adding an energy charge of 6.34 cents per

kirill [66]

Answer:

y = 18.38 + 0.0634x

Step-by-step explanation:

Given,

Monthly base charge = $18.38,

Also, the cost of each kilowatt-hours = 6.34 cents = $ 0.0634

( 1 cents = 0.01 dollars ),

So, the cost of x kilowatt-hours = 0.0634x,

If y represents the total monthly charge ( in dollars ) for x kilowatt-hours,

Thus, the total monthly charge for x kilowatt-hours = base charge + cost of x kilowatt-hours,

⇒ y = 18.38 + 0.0634x

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