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3 years ago

Daniel and Sofia both solve this system of equations:

Mathematics

2 answers:

Evgesh-ka [11]3 years ago

8 0

Answer:

Sofias solution is correct.

Step-by-step explanation:

First of all you do not need two sets of the same equation.

y=-1.5x + 5.7

y = 0.5x + 0.3

If you graph the y-intercepts first then graph the slope for the equation then you will get the right answer.

1) Graph 5.7 on the y-axis. | Then graph -1.5x going down on the y-axis and then go to the right on the x-axis.

Do the same for the other equation and you will get a solution of (2.7, 1.65) since they will intersect there.

To check your answer use: https://desmos.com/calculator

FrozenT [24]3 years ago

5 0

Answer:

Step-by-step explanation: Sofia is more likely to be correct because based on her solution you use them in the equations to check your answers and they all are correct.

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The number of pages that Kline can read varies directly with the time he spends reading if he reads 13 pages in 25 minutes how m

sukhopar [10]

Answer:It is 650

Step-by-step explanation:

13x25=352

352x2=650

3 0

3 years ago

Read 2 more answers

Help me asap ....................

OLEGan [10]

Answer:

x = 0 or x = -8

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

17=x2+8x+17

Step 2: Subtract x^2+8x+17 from both sides.

17−(x2+8x+17)=x2+8x+17−(x2+8x+17)

−x2−8x=0

Step 3: Factor left side of the equation.

(−x)(x+8)=0

Step 4: Set factors equal to 0.

−x=0 or x+8=0

x=0 or x=−8

8 0

3 years ago

Use implicit differentiation to find dy/dx

andreev551 [17]

Answer:

When you take the derivative of -tan(xy) you have to account for the chain rule in the xy.

Step-by-step explanation:

Your answer should be set up as such.

0 - sec^2(xy) ((y)+(x*dy/dx)) = 0

y + x*dy/dx = 0

dy/dx = -y/x

5 0

4 years ago

Find the equation of a line, in slope intercept form of a line that passes through the point (9,2) and is parallel to the line 2

Roman55 [17]

Answer:

Step-by-step explanation:

2(9)-(2)=8

18-2=8

9=8

9-8

Im pretty sure this is the answer

5 0

3 years ago

N-<img src="https://tex.z-dn.net/?f=%5Cfrac%7B2n-3%7D%7B9%7D" id="TexFormula1" title="\frac{2n-3}{9}" alt="\frac{2n-3}{9}" align

Sunny_sXe [5.5K]

Answer: $n = -12$

Step-by-step explanation: $n - \frac{2n - 3}{9} + 2 = \frac{2n + 1}{3}$

$\frac{9n - 2n - 3 + 18}{9} = \frac{2n + 1}{3}$

$\frac{7n + 15}{9} = \frac{2n + 1}{3}$

$9(2n + 1) = 3(7n + 15)$

$18n + 9 = 21n + 45$

$9 = 3n + 45$

$-36 = 3n$

$-12 = n$

8 0

3 years ago