CAN SOMEONE PLEASE ANSWER!

Mathematics

1 answer:

Nesterboy [21]3 years ago

8 0

100 $x^{32}$

separate the factors in the radical into 2 products and evaluate

= $\sqrt{10000}$ × $\sqrt{}x^{64}$

= 100 × $x^{32}$ = 100 $x^{32}$

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John took all his money from his savings account. He spent $88 on a radio and 1/4 of what was left on presents for his friends.

gayaneshka [121]

Answer:

$968

Step-by-step explanation:

x= the money John originally had in his savings account

The statement says that John spent $88 on a radio and 1/4 of what was left on presents for his friends. This means that the remaining money is 3/4 of the total amount minus the money spent on the radio:

3/4(x-88)

Then, it says that of the money remaining, John put 4/11 into a checking account and the last remaining $420 was left to charity. Since, he spent 4/11 of the remining 3/4(x-88), the remaining is 7/11 of that and that remaining is equal to $420 that was the money left at the end:

7/11(3/4(x-88))= 420

21/44(x-88)=420

21/44x-42=420

21/44x=462

x=968

According to this, the money that John originally had in his savings account was $968.

He spent $88 on a radio: 968-88= 880

1/4 of what was left on presents for his friends: 880/4= 220

880-220=660

Of the money remaining, John put 4/11 into a checking account: 660*(4/11)=240

the last remaining $420 was left to charity: 660-240= 420

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