Answer:
she has $19.5
Step-by-step explanation:
156/4=39*3=117 spent on bag
156-117=39 left for scarf so divide 39/2=19.5
19.5 was used for the scarf and only 19.5 was left over
Answer: Prime
Step-by-step explanation: To tell if 37 is a prime number or a composite number, begin by finding the factors of 37.
To find the factors of 37, begin by dividing 37 by 1 which gives us 37. This means that 1 and 37 are factors.
Notice however that 37 is not divisible by any other number except 37. When we divide 37 by 37 we get 1. Since 37 and 1 are repeat factors, the only factors of 37 are 1 and 37.
When there are only two factors of a number, we call the number prime.
You get a positive number because you can use the leave, change, change rule for the signs. After the rule it would be a minus + a positive. The answer will vary depend on the size of each number.
Answer:
Step-by-step explanation:
Second equation times 3:
1st equation minus equation above:
Insert to equation:
Answer:
3.5 gallons a week
Step-by-step explanation:
Well 64 gl Oz is basically half a gallon. So half a gallon of water a day would result in 0.5*7 (7 days in a week) and you would get 3.5 gallons.
