What is 612.39 round to the nearest hole

Answers

Answer 1
Answer: 612.39 to the nearest whole number is 612 because when you round to the nearest whole number you know that 3 can't make the 2 into a 3 so you make .39 a .00, then you put it together. 612.00 or 612!
Hope I helped! :-)
Answer 2
Answer: 612.00 is the answer :3


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You want to invest$10,000 dollars. How long will it take to double your investment at an annual
interest rate of 10%, compounded continuously? (Round your answer to the
nearest year)
Using equation A=Pe^rt
^=exponent

Answers

using the equation         >    A  =  Pe^rt

20000  =    10000e^0.1t    >       10%  =  0.1
 2  = e^0.1t
log 2  =    log e^0.1t               >     log to the base e
log 2  =  0.1t * 1              log e to the base e  =1
0.6931 = 0.1t
t =   6.931
   =    7 years

Alex, Sara and Henry share £112 in a ratio 3:3:2. How much money does each person get?

Answers

Answer:

Step-by-step explanation:

3:3:2 = 3x +2x +3x = 8x

112 = 8x

x = 14

alex = 3x = 3(14) = 42

sara = alex = 42

henry = 2x = 28

The table below shows the number of cars Jing sold each month last year.What is the median of the data in the table.
13
16
19
20.5
23.5
Other:

Answers

Answer:

The median of the data in the table is 19.

Step-by-step explanation:

We are given the following data that shows the number of cars Jing sold each month last year below;

Number of cars Jing sold: 13, 16, 19, 20.5, 23.5

For calculating the median, firstly we have to observe that the number of observations (n) in our data is even or odd because;

  • If n is odd, then the formula for calculating median is given by;

                           Median = ((n+1)/(2) )^(th) \text{ obs.}

  • If n is even, then the formula for calculating median is given by;

                           Median = \frac{((n)/(2) )^(th) \text{ obs.} + ((n)/(2)+1 )^(th) \text{ obs.} }{2}

Here, the number of observations in our data is odd, i.e. n = 5.

So, Median = ((n+1)/(2) )^(th) \text{ obs.}

                   = ((5+1)/(2) )^(th) \text{ obs.}

                   = ((6)/(2) )^(th) \text{ obs.}

                   = 3rd obs. = 19

Hence, the median of the data in the table is 19.

A line contains the point (-2, 2) and is parallel to the line y = ½x + 8. What is the equation of this parallel line?

Answers

Answer:

y = (1)/(2) x + 3

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

given the line with equation

y = (1)/(2) x + 8 ← in slope- intercept form

with slope m = (1)/(2)

Parallel lines have equal slopes , then

y = (1)/(2) x + c ← is the partial equation of the parallel line

to find c, substitute the point (- 2, 2 ) into the partial equation

2 = (1)/(2) (- 2) + c = - 1 + c ( add 1 to both sides )

3 = c

y = (1)/(2) x + 3 ← equation of parallel line

Number 6 mainly and any other if you want to help:) looka t the pic

Answers

Let the amount B pays be £x
So,
A pays £125
B pays £x
They pay in the ration 3:2
Therefore,
125/x = 3/2
Cross multiplying we get,
125 x 2 = 3x
3x = 250
x = £63.33

How do you solve y=2.5x+5

Answers

if you are solving for x.
y=2.5x+5
you subtract 5 from both sides.
-5=2.5x
then divide both sides with 2.5
-5/2.5 2.5/2.5
the 2.5s will cancel each other out.
x=-2
slope\ is\ for\ y=0\n\ny=2,5x+5\n0=2,5x+5\ \ \ | subtract\ 5\n-5=2,5x \ \ \ | divide\ by\ 2,5\nx=-2 ---> SLOPE\n\n\intercept\ is\ for\ x=0\n\ny=5----> INTERCEPT