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vlada-n [284]
3 years ago
9

Find the value of y if given: 20y-2, 17y +3, 5x + 8, 21x

Mathematics
1 answer:
rodikova [14]3 years ago
7 0
<span>20y-2=
20y=2
20y/20=2/20
y=0.1

</span>17y +3<span>=
</span><span>17y=-3
17y/17=-3/17
y=-0.176

</span>
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Y = x + 2<br> y = 2x - 5<br> what is x and y
lana66690 [7]

Answer:

x= 7 y= 9 (7,9)

Step-by-step explanation:

solve by using system if equations. multiply top answer by 2, giving u 2y=2x+4 and y=2x-5 subtract the equations. y=9 (the x cancels out) then put 9 in for y. 9=x+2. subtract 2. giving u 7. and now x =7

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2 years ago
2) Select one of your sides.
svlad2 [7]

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Step-by-step explanation:

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3 years ago
Graph the function.<br> y=-x-6 ifx&lt;-6<br> y = 2x + 12 if x&gt;-6
Naddik [55]

Answer:

  see attached

Step-by-step explanation:

For x < -6, the function has a slope of -1 and an x-intercept of -6.

For x > -6, the function has a slope of 2 and an x-intercept of -6.

The function given here is not defined at x=6, so there is a hole at (-6, 0).

7 0
3 years ago
Find the first of three consecutive even integers if the sum of the first and second is 15 less than 3 times the third.
lilavasa [31]

Answer:

<em>First even integer: 6</em>

Step-by-step explanation:

<u>Inequalities</u>

Assume x is the first even integer. The next integer is x+2, and the last integer ix x+4.

The condition states that the sum of the first and the second number is 15 less than three times the third. This takes us to the inequality:

x+x+2

Operating:

2x+2

Subtracting 2 and 2x:

0

Simplifying:

0

Solving:

x>5

There are infinitely many solutions. For example, for x=6 (first even number into the solution interval):

First integer: 6

Second integer: 8

Third integer: 10

There are other solutions, like 20,22,24 but the first set is 6,8,10.

4 0
3 years ago
Lisa has 6 hours of studying to do. If she divides her study time into 1/2-hour sessions, how many study sessions will she need?
-Dominant- [34]

Answer:

12 i think?

Step-by-step explanation:

5 0
3 years ago
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