I need answers to all of these. Please help!! I suck at math..

Mathematics

2 answers:

Harrizon [31]3 years ago

6 0

13, -7, -1, 0, <, >, 66, -12

soldi70 [24.7K]3 years ago

4 0

1) (-4) + (-9) = -13

2) 5 + (-12) = -7

3) -6 + 5 = -1

4) -7 + 7 = 0

5) Which symbol correctly completes the statement?

-7 + 2 ___ 3 + (-9)
-5 > -6
answer >

6) Which symbol correctly completes the statement?

4 + (-8) ___ 6 + (-8) + (-6)
-4 > -8
answer >

7) Your checking account balance is $50. You spend $11 and then deposit $27.

80 - 11 + 27 = 66
answer

$66

8) You currently have a balance of $34 in your checking account. You then write a check for $76 dollars to pay for groceries. Finally, you deposit a check for $30.

34 - 76 + 30 = -12
answer
-$12

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pochemuha

B(n) = A(1 + i)^n - (P/i)[(1 + i)^n - 1]

where B is the balance after n payments are made, i is the monthly interest rate, P is the monthly payment and A is the initial amount of loan.

We require B(n) = 0...i.e. balance of 0 after n months.

so, 0 = A(1 + i)^n - (P/i)[(1 + i)^n - 1]

Then, with some algebraic juggling we get:

n = -[log(1 - (Ai/P)]/log(1 + i)

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i.e. n = -[log(1 - (604.43)(0.136/12)/150)]/log(1 + 0.136/12)

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3 years ago

Xanthe and Sarah do some fundraising for their local nursing home. Together they raised $$$302. If Xanthe raised $$$102 more tha

Dimas [21]

Given :

Xanthe and Sarah together raised $302 .

If Xanthe raised $102 more than Sarah .

To Find :

The amount raised by Sarah .

Solution :

Let , amount raise by Sarah is x .

So , by the relation given , price raised by Xanthe is 102 + x .