3 years ago

How do you pass algebra class

Mathematics

1 answer:

Kamila [148]3 years ago

4 0

Take notes and pay attention since just slacking off for only 10 minutes can get you behind and struggling.

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– 3х – бу = 17; (6, 3)

almond37 [142]

I'm going to assume that you want to know whether the coordinate satisfies the equation. Let's find out;

-3х - 6у = 17

-3(6) - 6(3) = 17

-18 - 18 = 17

-36 ≠ 17

The point (6, 3) does NOT satisfy the equation.

Best of Luck!

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3 years ago

For the sales tax on the laundry soap, Kiran says it should be $0.84. Lin says it should be $0.87. Do you agree with either of t

Neko [114]

Answer:

Needs more detail

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3 years ago

A(-3,2) B(5,-4) midpoint is (1,-1)

lesya [120]

$CHECK:\\\\the\ midpoint\ AB:\left(\frac{-3+5}{2};\ \frac{2-4}{2}\right)=\left(\frac{2}{2};\ \frac{-2}{2}\right)=(1;-1)\\-------------------------------\\C(x;\ y)\\\\the\ midpoint\ AC:\left(\frac{-3+x}{2};\ \frac{2+y}{2}\right)\\\\B\ is\ the\ midpoint\ AC\ then:\\\\\frac{-3+x}{2}=5\ and\ \frac{2+y}{2}=-4\\\\-3+x=10\ and\ 2+y=-8\\\\x=10+3\ and\ y=-8-2\\\\x=13\ and\ y=-10\\\\Solution:C(13;-10).$

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3 years ago

Jack and Jim sign up with an online music store. Jack chooses 15 downloads for $19.75, and Jim chooses 40 downloads for $43.50.

lina2011 [118]

The answer would be A. The registration fee is $5.50, and the cost per download is $0.95.

Solution
Let x = registration fee
y = cost/downloads

Jack
15y + x = 19.75 ; x = 19.75 - 15y
Jim
40y + x = 43.50

Thus,
40y + x = 43.50
40y + 19.75 - 15y = 43.50
25y = 23.75
y= 0.95

for x,
x = 19.75 - 15y
x = 19.75 - 15( 0.95)
x= 19.75 -14.25
x = 5.5

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4 years ago

A device contains two circuits. The second circuit is a backup for the first, so the second is used only when the first has fail

Alecsey [184]

Answer:

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