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Zarrin [17]
3 years ago
14

You deposit $800 in an account that earns simple interest at an annual rate of 59. How long must you leave the money in the acco

unt to earn $100 in interest?
Mathematics
1 answer:
Pepsi [2]3 years ago
4 0

Answer:

2.5 years

Step-by-step explanation:

convert percent to a decimal --> 5% = .05

y = number of years

$100 = 0.05y ($800)

100/800 = 0.05y

0.125 = 0.05y

2.5 = y

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Factorise x^2+11x+18
Semenov [28]

Answer:

(x + 9)(x + 2 )

Step-by-step explanation:

Sum =11

Product = 18

Factors = 9 , 2

When you multiply (9*2 = 18) and when you add (9 +2 = 11).

x² + 11x + 18 = x² + 9x + 2x + (9*2)

                   =x(x + 9) + 2(x + 9)

                  = (x + 9)(x + 2 )

4 0
3 years ago
Read 2 more answers
A plant grows 1 and 3/4 inch per day. How many days will it take the plant to grow 10and 1/2 inches total? Write your answer as
lawyer [7]

Answer:

6

Step-by-step explanation:

8 0
3 years ago
Jan rode to her friend's house with a constant speed of 14 m/hr. How long will she take to
sammy [17]

Answer:

1.07 hours

Step-by-step explanation:

14 miles = 1 hour

15 miles = x hours

Equal these two together

14 mi/1hr = 15 mi/xhr

Cross multiply

14 mi × x hr = 1 hr × 15 mi

I will stop using the units for now so it won't be as confusing

14x = 15

Divide both sides by 14 to isolate the variable

14x ÷ 14 = 15 ÷ 14

x = 1.07... hours

4 0
3 years ago
Y=6-x In this case, what would be the slope and y-intercept? I'm having a hard time trying to get it to the y=mx+b format.
frutty [35]

Answer:

Slope = \frac{-1}{1} or -1

y = 6

Step-by-step explanation:

The equation given (y = 6 - x) is the same as saying

y = -1x + 6

Since we have a negative x variable and a positive 6 and would also be graphed the same. The only difference is that the second equation I just mentioned resembles the y = mx + b expression more. In this case the slope would be

Slope = \frac{-1}{1} or -1

While the y-intercept would be

y = 6 - x

y = 6 - 0

y = 6

4 0
2 years ago
What is 2-78 please help me
Angelina_Jolie [31]

Answer:

  • 2-78

=-76

hope it is helpful to you ☺️

8 0
3 years ago
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