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loris [4]
3 years ago
6

Jack use 25% of the memory card on his digital camera while taking pictures at a family reunions if jack took 96 pictures at a f

amily reunions how many pictures can the memory card hold
PLEASE HELP I NEED THIS ANSWERED
Mathematics
1 answer:
mihalych1998 [28]3 years ago
7 0
384 I think yessssssssss
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Tamara invests $8000 in two different accounts. The first account has a simple interest rate of 3% and the second account has a
Paraphin [41]

Answer:

  • $3200 at 3%
  • $4800 at 2%

Step-by-step explanation:

Interest earned is proportional to the interest rate, so if the interest earned is the same, the amounts invested must be inversely proportional to the interest rates. That is, for the 3% and 2% accounts, the ratio of money invested is 2:3.

In other words, 2/5 of the money ($3200) was invested at 3%, and 3/5 of the money ($4800) was invested at 2%.

_____

If you need an equation, you can let x represent the amount invested at the highest rate. Then 8000-x is the amount invested at the lower rate. For the interest in the two accounts to be equal, we have ...

  3%·x = 2%·(8000-x) . . . . . the amounts of interest earned are the same

  3/2·x = 8000 -x . . . . . . . . divide by 2%

  5/2·x = 8000 . . . . . . . . . . . add x and simplify

  x = 8000·(2/5) = 3200  . . . multiply by the inverse of the x coefficient

  8000-x = 8000 -3200 = 4800 . . . . the amount invested at the lower rate

Tamara invested $3200 in the 3% account and $4800 in the 2% account.

_____

She earned $96 in each account for the year.

8 0
3 years ago
Todd has at most 14 dimes and nickels in his pocket and the total value of the coins is more than $1. If x represents the number
sattari [20]

Answer:

x+y≤14

10x+5y>100

Step-by-step explanation:

Got it right! Hope this helps!

5 0
3 years ago
What is the solution to the system of equations?<br><br> y = x – 10<br><br> 2x + y = 4
Bumek [7]
2x+(x-10)=4
3x-10=4
3x=14
x=4.6 repeating
6 0
3 years ago
Please help guys much love
lord [1]

Step-by-step explanation:

1) Ans 3

2) Ans 6

3) Ans 4

4) Ans 1/5

5) Ans 1/23

4 0
2 years ago
#20 I’m not sure how to solve it. And the answer should be able to grid in like on the SAT
r-ruslan [8.4K]

Answer:

1

Step-by-step explanation:

i (a + bi) = 1

ai + b(-1) = 1

ai − b = 1

Match the coefficients.

ai = 0

-b = 1

Therefore, a = 0 and b = -1.

So a − b = 0 − (-1) = 1.

4 0
3 years ago
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