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ANTONII [103]
1 year ago
8

The sum of twice x2 added to 7x is –3. Which could be the value of x?

Mathematics
1 answer:
amm18121 year ago
7 0

Answer:

x= -1/3

Step-by-step explanation:

2x+7x=-3

9x/9= -3/9

x = -1/3

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Jeremy wants to give a 20% gratuity to his cab driver. His fare was $35.50. What is the total amount he will pay the driver?
velikii [3]

he will pay $42.60 to the driver :)

7 0
2 years ago
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Last year, the numbers of skateboards produced per day at a certain factory were normally distributed with a mean of 20,500 skat
BartSMP [9]
Let x be a random variable representing the number of skateboards produced
a.) P(x ≤ 20,555) = P(z ≤ (20,555 - 20,500)/55) = P(z ≤ 1) = 0.84134 = 84.1%

b.) P(x ≥ 20,610) = P(z ≥ (20,610 - 20,500)/55) = P(z ≥ 2) = 1 - P(z < 2) = 1 - 0.97725 = 0.02275 = 2.3%

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5 0
2 years ago
A salesman’s commission on a $150,000 sale is $3,000. What percent is his commission?
Elenna [48]

Answer:

The commission percentage is 2%

Step-by-step explanation:

To find the percentage of a commission, start by dividing the commission amount by the total amount sold.

3,000/150,000 = .02 = 2%

5 0
1 year ago
After dinner 3/4 of a pie remains. if tasha eats 1/6 of the remaining pie
astraxan [27]

Answer: 1/8

Step-by-step explanation: 3/4 x 1/6 = 24/3 (simplify to 1/8)

4 0
2 years ago
-4(3/2x - 1/2) = -15
adelina 88 [10]

Answer:

2.8333333333333333333

Step-by-step explanation:

I have high iq

-4(3/2x - 1/2) = -15

Distribute -4

-6x + 2 = -15

Subtract 2 from both sides

-6x = -17

Divide 6 from both sides

x = 2.83333333333333333

4 0
1 year ago
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