Answer: 4%
Step-by-step explanation: 50 x 2 = 100
2x2=4 4/100 or 4%
Answer:
There will be 4 blue marbles
Step-by-step explanation:
Yellow to blue marbles is in a ratio of:
5:10
the representative sample is:
2:x
simplee cross multiplication can be aplied
5x = 2*10
5x = 20
divide both sides by 5
x = 4
there should be four blue marbles
From the problem we know that Hanna saves one-half of her paycheck each week, so she saves

. Also, we know that her parents put $50 in her savings account each week, so the total amount she and her parents put in her saving's account is

.
Since we know that Hanna currently has <span>$1,280 in her saving's account and each week she and her parents deposit $130 to the account, with </span>

representing the number of weeks, we can model the situation as follows:
You can find the answer by plugging in any of the multiple choice options into a,
when you square a number (^2), the result is always positive even if the number starts off negative,
-25 or 125 wouldn't work for this equation because the answer is too big
but when you plug -5 or 5 in you get the right answer, so the answer is c