Y + 7x=50
14x - 5y = -28
one solution
no solution
Infinite solutions

Your answer is in the screenshot! :)

Step-by-step explanation:

1. Solve for yy in y+7x=50y+7x=50. y=50-7x

y=50−7x

2. Substitute y=50-7xy=50−7x into 14x-5y=-2814x−5y=−28. 49x-250=-28

49x−250=−28

3. Solve for xx in 49x-250=-2849x−250=−28. x=\frac{222}{49}

x= 49 222

4. Substitute x=\frac{222}{49}x= 49 222 into y=50-7xy=50−7x.

y=\frac{128}{7} y= 7 128

5. Therefore, \begin{aligned}&x=\frac{222}{49}\\&y=\frac{128}{7}\end{aligned} x= 49 222 y= 7 128 Hope this helped!! :))

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!

using pemdas, (order of operations) you'll see the answer is 24.