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zubka84 [21]
3 years ago
10

5x+4y=-14 3x+6y=6 solve the system below by the elimation​

Mathematics
1 answer:
lana66690 [7]3 years ago
8 0

Answer:

y = 4

x = -6

Step-by-step explanation:

multiply first equation by 3

3×(5x+4y)= -14 ➡ 15x + 12y = -42

multiply second equation by -5

-5×(3x+6y)= 6➡ -15x -30y = -30

now add both equations up

15x +12y -15x -30y = -42 -30 (15x will eliminate -15x)

-18y = -72

y = 4 use this to find value of x

3x + 6×4 = 6 ➡ ex = -18 ➡ x = -6

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Answer:

the last one is right by look at the chart

4 0
3 years ago
Which of the following sets of measures for sides doesn't form a triangle?
beks73 [17]
The sum of the two smallest numbers has to equal a number greater that the largest one. Or, how some people prefer it, the sum of any two numbers of the set has to be a greater number than the third one.

So, the set of sides 7,9,17 does not form a triangle.
because 7+9= 16, which is less than the greatest number, 17.
3 0
3 years ago
Can someone help, please
Allisa [31]

Answer:

\frac{9}{5}

Step-by-step explanation:

the slope is the change in y over the change in x

From the points given, your y's are 10 and 1.  

From the points given, your x's are 7 and 2.  To find the changes subtract them.

\frac{10-1}{7-2} = \frac{9}{5}

4 0
1 year ago
Read 2 more answers
The function g(x) = -6x + 3.
lapo4ka [179]

Answer:

A

Step-by-step explanation:

In the slope-intercept form (y=mx+c), the coefficient of x is the slope and c is the y-intercept.

<u>g(x)= -6x +3</u>

Slope= -6

y- intercept= 3

<u>f(x)</u>

y- intercept is the point at which the graph cuts through the y- axis, and it occurs at x= 0.

The two points on the graph are (0, 3) and (1, 1).

slope

=  \frac{y1 - y2}{x1 - x2}

=  \frac{3 - 1}{0 - 1}

=  \frac{2}{ - 1}

= -2

y- intercept= 3

Thus, both have different slopes but the same y-intercepts.

3 0
2 years ago
Trent is 25 years old and works for a company that matches his 401(k) contribution up to 5%. the interest rate for his 401(k) is
weqwewe [10]

If he puts away 10% of his $32,000 salary every year, The total of his 401(k) be in 10 years is: a. $67,266.16.

<h3>401(k) in 10 years</h3>

First step

Contribution=(10% ×$32,000)+ 50% from employer

Contribution=$3,200+ ($3,200×50%)

Contribution=$3,200+$1,600

Contribution=$4,800

Second step

Future value= 4800 (1 + 0.073)^10 – 1/ 0.073

Future value= 4800 (1 .073)^10 – 1/ 0.073

Future value= 4800 (2.0230062274104 – 1) / 0.073

Future value= 4800 (1.0230062274104) / 0.073

Future value=$4,910.42989157/0.073

Future value=$67,226.16

Therefore the total of his 401(k) be in 10 years is: a. $67,266.16.

Learn more about 401(k) here:brainly.com/question/3516994

#SPJ4

6 0
2 years ago
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