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djverab [1.8K]
3 years ago
6

How many solutions does the system of equations below have? ​ ​(PLEASE HELP)

Mathematics
1 answer:
Artist 52 [7]3 years ago
6 0

Answer:

y= -54-2

y= -56 &

x= -54/ -9

x= 6

Step-by-step explanation:

y= -9x-2

-9x= y+2 divide bothe side by -9

x=y+2/-9

y= -9(y+2/ -9) -2 = (y+2)-2

y= -2(y+2)

y= -2y-4

y+2y= -4

3y= -4 divide bothe side by 3

y= -4/3

x=y+2/ -9

x= -4/3+2/-9

x= -2/3× -9

x=18/3

x=6

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Dion owns a delivery service. He charges his customers $15.00 for each delivery. His expenses include $7000 for the motorcycle h
soldi70 [24.7K]

Answer:

p = $15d - (7,000 + 0.84d)

Step-by-step explanation:

In this question, we are asked to given an equation that will represent the profit Dion makes when he has made a total of d deliveries.

We proceed as follows:

To calculate the profit, we need to subtract the cost price from the selling price.

Let’s start with the cost price. This refers to the total amount of money that is used to prepare the goods for sales and also spent on that cause. He charges $0.42 for gasoline per trip. This means it is a total of $0.84 for each delivery. This is because two trips will make a delivery. Total number of money spent on gasoline on deliveries is thus 0.84 * d = 0.84d. Now, we add the cost of Motorcycle he rides to be $7,000. The total money spent is thus $7000 + $0.84d

His selling price is simply the number of deliveries he has made multiplied by the amount of money he charges per trip. This is same as 15 * d= $15d

Profit is thus ; p = $15d - (7,000 + 0.84d)

7 0
4 years ago
Need help in all please asap and is the graphing right ? If not please help me with that two ! :))
Bezzdna [24]
Yes your graphing right
Y intercept is -2 and the slope is 1
Y = X + -2
6 0
3 years ago
Find the best linear equation for the ordered pairs below.
kolbaska11 [484]

Answer:

  y = -.075x +4.89

Step-by-step explanation:

The data set has almost no net slope, so the first equation is the most appropriate. (An absolute value function would be a much better fit.)

  y = -.075x +4.89

4 0
3 years ago
20 POINTS
boyakko [2]

<u>Ans(a):</u>

Given that total distance = 1158 km

Estimated time of drive = 12

now question says to distance that can be driven in 1 hour.

Indirectly it is asking for his speed.

So we can use formula of speed

Speed = \frac{distance}{time}=\frac{1158}{12}=96.5 km per hour.

Hence he will drive approx 96.5 km in 1 hour.


<u>Ans(b):</u>

Actual driven distance = 484 km

Actual time taken = 5 hours

Then actual speed = \frac{484}{5}= 96.8 km per hour


Comparing speeds in both parts, we see that actual speed 96.8 km/hour is more than the expected speed 96.5 km/hour.

Hence he will reach at his destination on schedule or before the expected time.

5 0
4 years ago
How many times can 18 go into 357
Tomtit [17]
18 goes into 357 19.84 times.
8 0
3 years ago
Read 2 more answers
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