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2 years ago

11

Maggie took a walk. She left at 10:30 A.M. and got home at 1:45 P.M. How long was she gone?

2 answers:

GarryVolchara [31]2 years ago

7 0

The answer is 3 hours and 15 minutes:
lets put it like this :
HOURS :
10:30 so 10:30 to eleven is really 30 min.(cause we want to count hours first)

11:00 so we start by here
11:30
12:00
(this whole thing is one hour 11:00 to 12:00 is one hour ) 1h

12:00
12:30
1:00
(this whole thing is one hour) 1h
here we stop ,now so far we have 2h

MINUTES:
Now we still have that 30 minutes from 10:30 to 11:00 and that 45 min from 1:45 .so we add them up 30min + 45min =75 min =1h and 15 min

so now add all of them together 2h + 1h +15 min = 3h and 15 min

stiks02 [169]2 years ago

6 0

Convert 1:45 pm to 24-hour system = 13.45

Answer is 13.45 - 10.30 = 3 hours 15 minutes

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What are the similarities and differences between comparing whole numbers and decimals

Helga [31]

There both types of numbers but a whole number is a number with no exponents or decimals, but decimals are like a broken un half whole number

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2 years ago

Read 2 more answers

The Leaning Tower of Pisa in Italy was built between 1173 and 1350. A. Write an equation in slope-intercept form for the yellow

mote1985 [20]

Answer:

The answer is below

Step-by-step explanation:

From the image of the leaning tower of Pisa, we can see that it passes through the point (7.75, 0) and (10.75, 42).

a) The equation of a line in slope intercept form is given by y = mx + b, where m is the slope and b is the intercept. Also, the equation of line passing through

$(x_1,y_1)\ and\ (x_2,y_2)\ is:\\\\y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)$

Hence since it passes through (7.75, 0) and (10.75, 42), the equation is:

$y-0=\frac{42-0}{10.75-7.75} (x-7.75)\\\\y=14(x-7.75)\\\\y=14x-108.5$

b) When the tower is 56 meters tall, i.e. y = 56, we need to find the value of x:

y = 14x - 108.5

56 = 14x - 108.5

56 + 108.5 = 14x

164.5=14x

x = 164.5/14

x = 11.75

When the tower is 56 meters tall, the top of the tower is 11.75 m off center

5 0

2 years ago

Write the decimal 1,072.039 in words

Rina8888 [55]

One thousand seventy two point thirty nine thousandths.

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2 years ago

Tara owes $14,375 in credit card debt. The interest accrues at a rate of 5.3%. She is also borrowing $570 each month for rent fr

siniylev [52]

Answer:

$(f + g)(t) = f(t) + g(t) = 14375 (1 + \frac{5.3}{100})^{t} + 6840t$

$29619.13

Step-by-step explanation:

a. Tara has $14375 in credit card debt and the interest rate is 5.3%.

Now, if f(t) represent the amount of money Tara have in credit card debt, where t is the number of years after after interest begins to accrue, then

$f(t) = 14375 (1 + \frac{5.3}{100})^{t}$ ......... (1)

Again Tara borrows $570 each month for rent from her parents without any interest.

If g(x) represent the amount of money Tara owes to her parents, where t represents the number of years passed,then we can write

g(t) = 570 × 12t = 6840t ........ (2)

Therefore, $(f + g)(t) = f(t) + g(t) = 14375 (1 + \frac{5.3}{100})^{t} + 6840t$

b. So, for t = 2 years,

$(f + g)(t) = 14375 (1 + \frac{5.3}{100})^{2} + 6840 \times 2$ = $29619.13

So, Tara has to repay $29619.13 if she continues this way without any repayment for 2 years. (Answer)

7 0

2 years ago

For which function does f decrease by 15% every time x increases by 1

LenaWriter [7]

Answer:

$f(x) = 0.85^{x}$

Step-by-step explanation:

The exponential function that decrease by 15% every time x increases by 1 is given by:

$f(x) = {(1 - 0.15)}^{x}$

We simplify the parenthesis to get:

$f(x) = 0.85^{x}$

Therefore the decrease by 15% every time x increases by 1 is

$f(x) = {0.85}^{x}$

The second choice is correct.

7 0

2 years ago