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kirill115 [55]
3 years ago
15

Problem 3 A bank charges a service fee of $7.50 per month for a checking account. A bank account has $85.00. If no money is depo

sited or withdrawn except the service charge, how many months until the account balance is negative
Mathematics
1 answer:
omeli [17]3 years ago
8 0

Answer:

12 months

Step-by-step explanation:

85-7.50x

At 11 months, the charges will add up to $82.50, so you know what after 12 months the account will be in the negative. At 12 months, the charges will be at $90, which means the account will have a balance of -$5

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Solve the equation. x2 18x 81 = 25<br> a. 14, 4<br> b. –4, –14<br> c. 14, –14<br> d. –4, 4
Snowcat [4.5K]

Answer:

The answer is the option B

-4,-14

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2}+18x+81=25  

x^{2}+18x+56=0  

so

a=1\\b=18\\c=56

substitute in the formula

x=\frac{-18(+/-)\sqrt{18^{2}-4(1)(56)}} {2(1)}

x=\frac{-18(+/-)\sqrt{100}} {2}

x=\frac{-18(+/-)10} {2}

x1=\frac{-18+10} {2}=-4

x2=\frac{-18-10} {2}=-14

7 0
3 years ago
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Two angle measures of a triangle are 62° and 28°. What is the measure of the third angle?
SOVA2 [1]
The third angle would measure 90 degrees
5 0
2 years ago
Find the least common multiple.
vovangra [49]

Answer:

C - 3,600

Step-by-step explanation:

100 16 45 ÷ 2

50. 8. 45 ÷ 2

25. 4. 45 ÷ 2

25. 2. 45. ÷ 2

25. 1. 45. ÷ 3

25. 1. 15. ÷ 3

25. 1. 5. ÷ 5

5. 1. 1. ÷ 5

1. 1. 1

L.C.M = 2 x 2 x 2 x 2 x 3 x 3 x 5 x 5 = 3, 600

I know this may be confusing but if you don't understand, you're welcome to ask.

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Andru [333]

kung ako sayo gurl wag mo na hanapin yung value ni ex

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2 years ago
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How do you write 11/25 as a percentage?
Mandarinka [93]

Answer:

44%

Step-by-step explanation:

11/25 =0.44

0.44 = 44/100 = 40%

         11x4 =44

       25x4=100

6 0
1 year ago
Read 2 more answers
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