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Ad libitum [116K]
3 years ago
6

Solve the System of equations using substitution or elimination. Show work. 3x-4y=-31 X+y=6

Mathematics
1 answer:
Nataly_w [17]3 years ago
6 0
Hope this helps I got (-1, 7)
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I have another Brainliest
Lynna [10]

Answer:

  1. 5 times
  2. $22.75

Step-by-step explanation:

1.  Let n represent the number of times you can ride. To keep the cost within your budget, you must have ...

  2.75n ≤ 15.00

  n ≤ 5.45

You can ride 5 times. You don't have enough money to ride 6 times.

__

2. You can choose the correct answer using estimation of the costs. (You only need to work out the numbers in detail if an estimate doesn't get you close enough.)

3 all-day passes are a little more than $20 each, so cost a little more than $60.

2 rides on the Mountain Coaster are another $9, so your total cost will exceed $69. That means you will get less than $31 in change from $100. The only answer choice in that range is $22.75.

If you add up the costs of the passes and rides, you find they come to $77.25, so your change from $100 will be $22.75.

5 0
3 years ago
ANSWER ASAP PLEASE GIVING BRAINLIEST!
ruslelena [56]

Answer:

i dont know

Step-by-step explanation:

5 0
3 years ago
Multiply the following complex numbers: (8-3i)(6+5i)
nika2105 [10]

The a answer is 8-13i

3 0
3 years ago
Read 2 more answers
True or False: Using the formulas A = (bh)/2 and A = 1/2(bh) will get you two completely DIFFERENT answers.
lozanna [386]

Answer:

false they are the same formulas

8 0
3 years ago
Read 2 more answers
What is the equation of the line shown in the graph? (-3,1) (2,-4)
ki77a [65]

Answer:

x + y = -2

Step-by-step explanation:

The two primary equations to remember when dealing with graphing 2-variable equations are: ax + by = c (a & b are the x & y coefficients, respectively), and the other is y = mx + c (m = slope, x & y represent themselves). There is another equation to find the slope. If not already known, it's: ∆y/∆x {∆(aka Delta) = difference}. So, since that's all been established, we can proceed to calculate your question:

1) Find your slope: 1 - (-4) = 5 for your y-variable. And -3 - 2 = -5 for your x-variable. So your slope = 5/-5 = -1

2) Use the y = mx + c equation together with either set of (x,y) coordinates to get the equation 1 = (-1)(-3) + c. Which gives you c = -2

3) So, going back to the main equation to remember, the ax + by = c, use a one of your given sets of x,y coordinates and input your known values for x, y, & c to get: a(-3) + b(1) = (-2) and do the same with other set (these are just double-checks, coefficients are all equal to 1 anyways). So, you should arrive to the equation: x + y = -2

4 0
3 years ago
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