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LiRa [457]
3 years ago
5

Helpppppppppppppppppppppppppppp

Mathematics
1 answer:
algol133 years ago
5 0

Answer:

I would say it is 9

Step-by-step explanation:

You might be interested in
A bird leaves its nest and travels 20 miles per hour downwind for x hours. On the return trip, the bird travels 4 miles per hour
Svetach [21]

Answer:

30 mi/ 24 mi (6 mi slower)

Step-by-step explanation:

distance = rate x time

distance = 20 mph * X hr = 20 X miles

return trip:

    distance = 16 mph * X hr + 6 miles = 16X + 6

They are the same:

 20X = 16X + 6

 4X = 6

 X = 6/4 = 3/2

20 mph * 3/2 hr = 30 miles.

On the return trip: 16 mph * 3/2 hr = 24 miles, which is 6 miles short of 30 mi.

The distance is 30 miles.

The bird flies all 30 miles in 3/2 hr = 1 and 1/2 hour = 1 hour 30 minutes.

On the return trip, the bird flies 24 miles in 1.5 hours, which is 6 miles short.

3 0
4 years ago
Does the line passing through the points (−1,−5) and (2,1) intersect the line passing through the points (−1,−6) and (1,2)?
Serggg [28]

Answer:

Yes

Step-by-step explanation:

As long as the slopes of these two lines are not the same, they will intersect.

Given two points on a line, we can find the slope by taking the difference in the y coordinates and dividing it by the difference in the x coordinates.

Slope of 1st line: \frac{-5-1}{-1-2} =\frac{-6}{-3} =\frac{1}{2}

Slope of 2nd line: \frac{-6-2}{-1-1} =\frac{-8}{-2}=4

The slopes are not equal, therefore the lines intersect.

5 0
3 years ago
The advertising and sales model of a company is given by the function S = 2t2 + 100, where t is time in months and t ≥ 0. If adv
Vikentia [17]

Answer:

The transformation will occur to this model by shifting along the x-axis.

Step-by-step explanation:

The advertising and sales model of a company is given by the function S = 2t^{2} + 100, where t is the time in months and t ≥ 0.

Now, if advertising is delayed by a month, then the x-variable i.e. t will have values added with 1.

Therefore, the transformation will occur to this model by shifting along the x-axis. (Answer)

7 0
3 years ago
Darion saved the amount shown from his weekly allowance Calculate
Pavel [41]

Answer:

$20 i think

Step-by-step explanation: have a good day bye bye yup yup

5 0
4 years ago
one adult ticket for a school play costs 10 dollars and one student ticket costs 6 dollars. one evening,750 people attended the
liraira [26]

The algebraic solution to the situation is as follows:

x + y = 750

10x + 6y = 6860

The number of adult and student are 590 and 160 respectively.

<h3>How to find and solve an algebraic equation?</h3>

One adult ticket for a school play costs 10 dollars and one student ticket costs 6 dollars.

One evening,750 people attended the play and the total receipts were 6860.

Therefore,

let

x = number of adult ticket

y = number of student tickets

Therefore,

x + y = 750

10x + 6y = 6860

10x + 10y = 7500

10x + 6y = 6860

4y = 640

y = 640 / 4

y = 160

Hence,

x  = 750 - y

x = 750 - 160

x = 590

learn more on algebraic expression here: brainly.com/question/14934521

#SPJ1

4 0
2 years ago
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