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Lostsunrise [7]
4 years ago
9

5x+8-7x=-4x+1 A.No Solutions B. Exactly one solution C. Infinitely many solutions

Mathematics
1 answer:
dezoksy [38]4 years ago
4 0

Answer:

  B.  Exactly one solution

Step-by-step explanation:

You can add (4x -8) to both sides:

  5x +8 -7x +(4x -8) = -4x +1 +(4x -8)

Collect terms

  2x = -7

  x = -7/2 . . . . . divide by 2. One solution.

_____

As soon as you determine that the x-coefficients on the left and right are different, you know there is exactly one solution.

On the left, the coefficient of x is 5-7 = -2; on the right it is -4.

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The product of 4 and Goran's score is 60
alexandr1967 [171]

The variable use to represent Goran's score is 4g = 60

<h3>How to use a variable to represent a score?</h3>

The product of 4 and Goran's score is 60.

Now let's use the variable g to represent the score of Goran.

A variable is an alphabet or term that represents an unknown number or unknown value or unknown quantity.

In simpler term a variable is a letter use to represent a number in an expression or equation.

Therefore, the expression can be represented as follows;

let

g = score

Hence,

4 × g = 60

4g = 60

divide both sides by 4

4g / 4 = 60 / 4

g = 15

learn more on variables  here: brainly.com/question/13575110

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4 0
2 years ago
A four-line classified ad costs $28 for a week. Each additional line costs $10.50. What is the weekly cost of a 12-line ad?
Fantom [35]
28 + 8*10.5 = 28 + 84 = 112
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8 0
3 years ago
2(5a+3b)<br><br><br> Does anyone know this?
Ludmilka [50]
The answer is 10a+6b
5 0
3 years ago
Help me with this question please.
7nadin3 [17]

Answer: 17.60 is a terming decimal 25.60 is a repeating decimal i dont know the rest sorry

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
8^x=2 write down the value of x
e-lub [12.9K]

Answer:

x = \frac{1}{3}

Step-by-step explanation:

Using the rule of exponents

a^m^{n} = a^{mn}

Note that 8 = 2³ and 2 = 2^{1}, then

(2^3)^{x} = 2^{1}, that is

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Since the bases on both sides are equal, equate the exponents

3x = 1 ( divide both sides by 3 )

x = \frac{1}{3}

4 0
4 years ago
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