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kvv77 [185]
4 years ago
14

The sum of 2 time a number and -7, added to 5 times the number

Mathematics
1 answer:
DIA [1.3K]4 years ago
4 0

Answer:

7x - 7

Step-by-step explanation:

Variable: X = the unknown number

2x + (-7) + 5x

= 7x - 7

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Help me please!!!! The question is in the picture^^^
Aleksandr [31]

Answer:

7,173

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Step-by-step explanation:

Within the question it gives two examples.

x = 0 corresponds to 2000

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If you pay close attention the x-value is always the same as the last digits in the year. So with 2007 the last digit is 7, which then leads us to determine that

x = 7

f (x) = -327 (7) + 9462

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3 years ago
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melamori03 [73]
For a rectangle, A = LW.

A = (3x + 2)(x - 4)

A = 3x^2 - 12x + 2x - 8

A = 3x^2 -10x - 8
6 0
4 years ago
I need help just answer no explanation please
dimulka [17.4K]
B . sorry if i’m wrong
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3 years ago
An item has a listed price of $80 . if the sales tax rate is 8% , how much is the sales tax (in dollars)?
Arlecino [84]
The sales tax is $6.40
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BartSMP [9]

Answer:

b=30

Step-by-step explanation:

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