Answer:
She got 5 incorrect.
Step-by-step explanation:
In order to find this, we start by using the formula for percentage.
Correct/Total = Percentage
Now we put in known quantities.
Correct/25 = .8
Now to solve we multiply both sides by 25
Correct = 20
Since she got 20 correct, we know she got 5 incorrect
Answer:
day 540
Step-by-step explanation:
He increases his number of situps by 2 each day meaning on day 1 he'd do 2 extra, on day 2 he'd do 4 extra, on day he'd do 6 extra etc. We can show this by saying +2x where x is the day he is on. Then since he started with 20 we have to add 20 so it would be 20+2x. We want to know what day it is when he does 1100 situps so we can set our equation equal to 1100 and solve for X which is the day it would be.
20+2x=1100
2x=1080
I hope this helps and please don't hesitate to ask if there is anything still unclear!
x=540
Answer:
0, 4, 7, 9, 11 those r the answers in order
Answer: 27 markers
Step-by-step explanation: 1/5 of 45 is 9 and 9 times 2 is 18. 45 minus 18 is 27. Boom.
Chandra will have 55 baseball cards
Step-by-step explanation:
Total baseball cards = 152
Let
Chandra's collection = p
Chandra has 42 baseball cards less than Simon so Simon will have 42 cards more:
Simon's Collection = p+42
We need to find Chandra's collection.
Total baseball cards will be 152 so, the equation will be:
Solving and finding value of p (Chandra's card)
So, Chandra will have 55 baseball cards.
Keywords: Word Problems
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