The error Kevin made was in step 2 when he added before he multiplied.
<h3>What error did Kevin make?</h3>
This question would be solved using the BODMAS rule. The BODMAS rule provides the order in which mathematical problems should be solved. The order is:
- bracket
- of
- division
- multiplication
- addition
- subtraction
- Step 1 : 75 - 6 x 2 + 3
- Step 2: 75 - 12 + 3
- Step 3 : 75 - 9
- Step 4: 66
To learn more about addition, please check: brainly.com/question/349488
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Answer: It will take her 7 weeks to save $120.
Step-by-step explanation:
Using the information we can come up with an equation.
If Andre starts with $85 then that will be initial and won't change.She add $5 per week so we could represent that by 5x where x is the number of weeks.
To find how much Ander has saved in total we will represent that by y.
y = 5x + 85 If y is the amount that she has saved over some weeks input 120 in for y and solve for x.
120 = 5x + 85
-85 -85
35 = 5x
x = 7
This means it will take her 7 weeks to save $120.
Times -1/2 each time
common ratio is -1/2
|-1/2|<1 so the series converges
the sum of an infinite geometric sequence when the common ratio is r and the first term is a1 is
the first term is 1/2 and r=-1/2
=
=
=
=
=
=
the sum of the infinite geometric sequence is 1/3
Answer:
0.0833333333...
Step-by-step explanation:
The 3 goes on forever, just for your information.
Hope this helps!
1 gal of water, seems pretty obvious, but it you want an equation where x = amt of water
:
x = .5(x+1)
x = .5x + .5
x - .5x = .5
.5x = .5
x = 1 gal
thanx
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