Mikayla has $32 in her piggy bank. Her sister, Jessica, has $21. Mikayla earns $10 a week by doing chores for her grandparents, while Jessica earns $12 a week by mowing lawns.

Which expressions give how much more or less money Mikayla has compared to Jessica after x weeks? Check all that apply.

11 – 2x

2x – 11

11 + 22x

32 + 10x – (21 + 12x)

32 – 21 + 10x – 12x
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11-2x and 2x-11 and 32+10x-(21+12x) and 32-21+10x-12x

Step-by-step explanation:

Let's start by changing the words into math.

MIKAYLA: "Mikayla has $32 in her piggy bank." tells us that she had 32 dollars. " Mikayla earns $10 a week by doing chores for her grandparents" tells us that she gets 10x dollars after x weeks. Adding these together we get 32+10x.

JESSICA: "Her sister, Jessica, has $21" tells us that she had 21 dollars. "while Jessica earns $12 a week by mowing lawns" tells us that she gets 12x dollars after x weeks. Adding these together we get 21+12x.

The question wants us to find how much more money Mikayla has so we subtract equation 1 from 2. Thus, 32+10x-(21+12x). (This gives us the fourth answer to be correct). Simplifying this we get 32-21+10x-12x (this gives us the last answer). Simplifying it even more we get 11-2x (this gives us the first question).

Also the question need how much less money Mikayla has so we can subtract equation 2 from 1 to get 2x-11 (which is the third answer).

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.