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3 years ago

8 less than the product of -3 and a number is greater than -26

Mathematics

1 answer:

Novay_Z [31]3 years ago

8 0

Answer:

x > 6

Step-by-step explanation:

x = the number

we can write an inequality for this equation:

-3x = product of x and -3

-8 = 8 less than

> -26 = greater than 26

inequality:

-3x - 8 > -26

to solve this, we first add 8 to each side to get:

-3x > -18

then we divide both sides by -3 to get:

x > 6

that's your answer!

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Please assist me with these problems

Alex73 [517]

Answer:

1) $350

2) 55°

3) $300

Step-by-step explanation:

1) The total cost is the cost of the appointment plus the cost of the repair work. The appointment costs $50. The repair work costs $120 per 2 hours. So the total cost is:

C = 50 + (120/2) t

C = 50 + 60t

For 5 hours of work, the cost is:

C = 50 + 60(5)

C = 350

It costs $350.

2) The temperature starts at 70°. It drops 10° in 4 hours. So the temperature after t hours is:

T = 70 + (-10/4) t

T = 70 − 2.5t

After 6 hours:

T = 70 − 2.5(6)

T = 55

The temperature is 55°.

3) Jennie's total pay is her weekly pay plus her commissions. If her commission is x% of her sales, then her pay is:

P = 250 + (x/100) S

When her sales is $1000, her pay is $275.

275 = 250 + (x/100) 1000

275 = 250 + 10x

25 = 10x

x = 2.5

So her pay is:

P = 250 + (2.5/100) S

When S = $2000:

P = 250 + (2.5/100) 2000

P = 250 + 50

P = 300

Her total pay is $300.

8 0

3 years ago

The regression equation relating dexterity scores (x) and productivity scores (y) for the employees of a company is y = 5.50 + 1

ohaa [14]

For this case we have the following equation:
y = 5.50 + 1.91x
Where:
x: dexterity scores
y: productivity scores
For x = 33 we have:
y = 5.50 + 1.91 * (33)
y = 68.53
Answer:
The best predicted productivity score for a person whose dexterity score is 33 is:
y = 68.53

3 0

4 years ago

In a survey, a group of students were asked to name their favorite elective class. There were 15 students who chose “other." How

bija089 [108]

Answer:

150 total students

Step-by-step explanation:

10%=15 students

so 15×9=135 students

then add the first 15

15+135=150 students in total participated in the survey

8 0