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Blababa [14]
3 years ago
10

Solve: 2(−n−3)−7(5+2n)

Mathematics
2 answers:
gavmur [86]3 years ago
7 0

Answer:

-16n-41

Step-by-step explanation:

2(-n-3)-7(5+2n)

First begin by expanding the bracket.  That is, multiplyingthe brackets by 2 and -7 appropriately.

In  doing so we have,

2(-n) x 2(-3) -7(5) x -7 (+2n)

simplifying becomes:

-2n-6-35-14n

collwct like terms becomes -2n-14n-6-35

Final answer becomes Thus: -16n-41

inessss [21]3 years ago
3 0

Answer:

−16n−41

Explanation

Distribute:

=(2)(−n)+(2)(−3)+(−7)(5)+(−7)(2n)

=−2n+−6+−35+−14n

Combine Like Terms:

=−2n+−6+−35+−14n

=(−2n+−14n)+(−6+−35)

=−16n+−41

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The sales team at an electronics store sold 48 computers last month. The manager at the store wants to encourage the sales team
Ivahew [28]

Answer: a. 14 Computers

b. 62 Computers

Step-by-step explanation:

a) What is the amount of increase in computers needed?

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Percentage increase required = 30%

Amount of increase in computers needed= 30% × 48

= 0.3 × 48

= 14.4

= 14 approximately

b)What is the new amount of computers the team must sell?

This will be the amount of Computers sold last month plus the increase.

= 48 + 14

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5 0
4 years ago
Andre and Diego were each trying to solve 2x+6=3x-8. Describe the first step they each make to the equation.
Vlad [161]
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3 years ago
Find the error in the student's calculation.
DaniilM [7]

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Step-by-step explanation: 3 - 8 = -5 so

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(-46) + (-25)

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3 years ago
During a rain shower, Jeanette collects 42 1 2 gallons of water in a rain barrel outside her home. She uses 1 1 4 gallons to wat
DerKrebs [107]

Answer:

492 gallons

Step-by-step explanation:

Total gallons of water collected = 4212

Gallons used for watering of plants = 114

Remaining gallons = 4212 - 114

                               = 4098

She uses 12% of the remaining water to was her laundry.

So that, gallons of water used to wash her laundry = 12% of 4098

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                                                                     = 491.76

                                                                     ≅ 492

She uses 492 gallons to wash her laundry.

6 0
3 years ago
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