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Kisachek [45]
3 years ago
7

Ms. Malia bought a laptop with a 10% discount. She also bought a mouse for $13.99 and spent a total of $621.49 before taxes. Wri

te an equation to find the original cost of the laptop, x
i don't need the cost of x i just need a equation with x as the answer
Mathematics
1 answer:
muminat3 years ago
5 0

Answer:

(621.49 x  0.1) + 13.99 = x

Step-by-step explanation:

Hope this helps.

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Please help due in 10 min will mark brainliest
nlexa [21]

Answer:

Option D will be your answer

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7 0
3 years ago
If a vehicle travels 25x miles in 2 hours, what is the vehicle's average speed, in miles per hour.
il63 [147K]

Given that a vehicle travels 25 miles in 2 hours, determine the average speed of the vehicle in miles per hour.

Work:

In order to find the average mph of the vehicle, you have to divide the distance the vehicle travels in a certain period of time by that amount of time.

So, in this case, the vehicle traveled 25 miles in 2 hours, so you would divide 25 by 2.

25/2 = 12.5

That means, the vehicle is traveling at a speed of 12.5 mph.

Thus, the average speed of the vehicle is 12.5 miles per hour (mph).

3 0
4 years ago
Which of the following is a like term of -5.92?
aleksandr82 [10.1K]

Answer:

2 1/4

Step-by-step explanation:

Like terms are terms which have the same variable and exponent. They sound alike and look alike. Here 1.45x and -7.78x are like terms. 3.5t is not because it has a different variable. None of the previous terms are like terms with -5.92 because it has no variable. Only 2 1.4 which also has no variable is a like term.

7 0
3 years ago
Express y=-2x^2-5x-18 as y=a(x-p)(x-q), where a,h, and k are constants. Hence state the equation of the line of symmetry and hen
UkoKoshka [18]

Answer:

y = -2·x^2 - 5·x - 18

y = -2·(x^2 + 10·x + 36)

y = -2·(x^2 + 10·x + 36)

y = -2·(x - (-5 - √11·i))·(x - (-5 + √11·i))

Maybe there is a typo in the original question, because there is no factorisation in the real numbers.

Because the question is " find the minimum value of y" the coefficient before x^2 must be a positive number. so it could be

y = 2·x^2 - 5·x - 18

Can you check this out?

4 0
3 years ago
Which percent is equivalent to 5/1000?
Yuliya22 [10]
The answer to this question is 0.5%
4 0
3 years ago
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