Find the solution to the system of equations

Mathematics

1 answer:

inna [77]3 years ago

6 0

Y = -3. Solved using elimination, although I've never seen the matrix tool before.

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Solve for the variable 2x -28 =16

BigorU [14]

Answer:

x=22

Step-by-step explanation:

5 0

3 years ago

Help!! Pleaseeeeeee this us urgent!!!!

zimovet [89]

Answer:

I will send you a link for desmos, the only way I can show you

Step-by-step explanation:

desmos.com/calculator/sjwbssn5xm

6 0

3 years ago

18-22 evens please and show how to do the work

marta [7]

#18
Answer C
4*7 = 28 which is the most closest one to 27.8

#19
perimeter = 2(L+W)
175.33 feet = 2103. 96 in
2 ( 2103.96 +48)
2 * 2151.96
4303.92 inches

#20
L*W = A
2103.96 * 48
100990.08 inch^2

to lazy to do the rest sorry

5 0

3 years ago

There are 416 students who are enrolled in an introductory geology course. if there are seven boys to every six girls, how many

Alenkinab [10]

$\text{Let the number of boys be x and number of girls be y.}\\
\\
\text{and there are total 416 students enrolled in the course. so we have}\\
\\
x+y=416 \ \ \ \ \ \ \ \ \ \ ......(i)\\
\\
\text{also given that there are seven boys to every six girls, that is}\\
\\
\frac{x}{y}=\frac{7}{6}$

$\Rightarrow 6x=7y\\
\\
\Rightarrow y=\frac{6x}{7}\\
\\
\text{substitute this value of y in (i), we get}\\
\\
x+\frac{6x}{7}=416\\
\\
\Rightarrow \frac{7x+6x}{7}=416\\
\\
\Rightarrow \frac{13x}{7}=416\\
\\
\Rightarrow x=\frac{416\times 7}{13}\\
\\
\Rightarrow x=224$