What is the final amount if 1235 is increased by 4% followed by a 4% decrease? Give your answer rounded to 2 DP

And hegarty said that 1204.23 was incorrect...

1233.02 to 2 D.P.

Step-by-step explanation:

4 % = 0.04

So to obtain the amount after increase by 4% we multiply by 1.04:

1235 * 1.04 = 1284.4

Decreasing by 4%:  we mutriply by 1 - 0.04 = 0.96:

1284.4 * 0.96

= 1233.024.

1233.02

Step-by-step explanation:

4% = 0.04

1235 × 0.04 = 49.4 (the original number was increased by this amount)

1235 + 49.4 = 1284.4 (new number after increment)

1 284.4 × 0,04 = 51.376 (the number has been reduced by this amount)

1284.4 - 51.376 =  1233.024- final amount.

Rounded to 2 DP: 1233.02

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!