Dox needs to solve the system of equations below. 4x + 5y = 7
-2x - 3y = 9
Dox needs to solve the system of equations below: 4x+5y=7 2x-3y=9 He decides to use the elimination method to cancel out the x terms in order to first solve for y. Dox uses the following steps:
Step 1: 4x + 5y = 7
-2(2x) - 3y = 9
Step 2: 4x + 5y = 7
- 4x - 3y = 9
Step 3: 2y = 16
Step 4: y = 8
Did Dox use the correct steps to solve for y? A. Yes, Dox correctly solved for y. B. No, Dox should have multiplied 2x by 2 instead of by -2. C. No, Dox should have multiplied the entire second equation by -2. D. No, Dox should have multiplied the entire second equation by -4.

connie < felicia < stew

step-by-step explanation:

stew:

we need to find the slope

m = (y2-y1)/ (x2-x1)

    = (2650-795)/(10-3)

    = 1855/7

265 words per minute

connie:

we need to find the slope

m = (y2-y1)/ (x2-x1)

we have two points (0,0) and (4,800)

m = (800-0)/(4-0)

  m = 800/4

    200 words per minute

felicia:

260 words per minute

200< 260 < 265

connie < felicia < stew

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!