What is the solution to x+y=17 and 4x+6y=78

x = 12 and y = 5

Step-by-step explanation:

Given that x + y = 17, you can solve for one of the variables currently. If you solve for the variable y, you get the equation y = 17 - x.

Substitute this value of y into the second equation, causing all values to now be the same variable instead of varying ones. This gives you the new equation 4x + 6 (17 -x) = 78.

Distribute the 6 inside the parenthesis, getting 102 and -6x, then combine like terms by doing 4x - 6x, giving you -2x.

Your current equation should now be -2x + 102 = 78

Subtract 102 from both sides, giving you -2x = -24

Divide by 2 on both sides, giving you positive 12 = x as both negatives cancel out.

Now, take the x value and substitute it back into the first equation we used. Instead of x + y = 17, it should be 12 + y = 17

Subtract 12 on both sides, and you get y = 5.

answer: the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

step-by-step explanation:

the given rate of interest i= 85%

in calculating the monthly payment for a loan with an interest rate compounded monthly, the value of the interest rate per period we use in the formula must be in decimal form.

to convert it in decimal, we divide it by 100, we get

hence, the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

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step-by-step explanation: