After losing 3 baseball cards, peter gave half of his remaining cards to bobby. if peter gave bobby 9 baseball cards, how many cards did peter start with? linear equation:   1 /2 (x - 3) = 9 bobby claims that peter started with 21 cards. which statements are true about verifying bobby’s claim? check all that apply. 1. substitute 21 for x in the original equation. 2. substitute any number for x in the original equation. 3. bobby’s claim that x = 21 is correct. 4. the result of verifying bobby’s work is 9 = 9. 5. the result of verifying bobby’s work is 21 = 21.

Hi There!

1. Substitute 21 for x in the original equation.

3. Bobby’s claim that x = 21 is correct.

4. The result of verifying Bobby’s work is 9 = 9.

Step-by-step explanation:

Linear Equation: 1/2 (x - 3) = 9

Bobby wants to substitute x for 21.

1/2 (21 - 3) = 9

1/2 (18) = 9

9 = 9

Bobby's claim is correct.

Hope This Helps :)

step-by-step explanation:

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.