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IgorLugansk [536]
3 years ago
15

Felix signs up for a cell phone that his parents require him to pay for. His bill is $46.80. What impact will his cell phone hav

e on his savings account over the period of a year ​
Mathematics
2 answers:
kogti [31]3 years ago
7 0

Answe

Step-by-step explanation:

Sergeeva-Olga [200]3 years ago
5 0

Answer:$561.60

Step-by-step explanation: The cost of each month is 46.80 and there is 12 months in a year so 46.80×12=561.60

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What is 12.31 as a mixed fraction
VashaNatasha [74]
12 31/100 is the mixed fraction because in a decimal all the numbers to the left are whole numbers and all the numbers to the right are numbers that are part of a whole. Just like in a mixed fraction there is a whole number and a fraction in a mixed number. Since 12 is in the left it is the whole number and since 31 is to the right and in the place value 31 is ending in the hundredths place so that's why the fraction is, 31/100. That's how you came to know that 12 31/100 is the fraction for 12.31.
4 0
3 years ago
What is the elimination of 20x+5y=120 and 10x+7.5=80
Grace [21]
20x+5y=120
10x+7.5y=80    multiply this one by 2
___________

20x+5y=120
20x+15y=160   subtract 

___________

        -10y=-40    divide both sides by -10 
____________

             y=4         

20x+5(4)=120   plug 4 in for y in the first equation 
20x+20=120     multiply 
20x=100           subtract 
x=5                   divide to find x




 
5 0
3 years ago
5. (5 points) Write the first 5 terms of the sequence if a1 = 9 and an-1 +n
Ivanshal [37]

Answer:

9,4,-1,-6,-11

Step-by-step explanation:

When n = 1: a(1+1) =a(1) +1

                   a(2) = -9 +1

                   a(2) = -8

When n = 2: a(2+1) =a(2) + 2

                   a(3) = -8 + 2

                    a(3) = -6

When n = 3: a(3+1) = -6 + 3

a(4) = -3

6 0
3 years ago
Mark rolls 2 fair dice and adds the results from each.
pashok25 [27]
36 ways to roll 2 dice

There are 10 ways to roll 1 thru 5…

Thus there are 26 / 36 ways to roll >5 (13/18)
4 0
3 years ago
A cricular arena is lit by 5 lights equally spaced around the perimeter of the arena. What is the measure of each angle formed b
Kitty [74]

Answer:

108°

Step-by-step explanation:

Suppose that circle with center A is a circular arena. Points B, C, D, E and F are 5 lights. These 5 points form regular pentagon (because these 5 lights are equally spaced around the perimeter of the arena).

The sum of all interior angles of pentagon can be calculated using following formula

(n-2)\cdot 180^{\circ},\\ \\(5-2)\cdot 180^{\circ}=3\cdot 180^{\circ}=540^{\circ}

All interior angles in regular pentagon are of equal measure, so

\dfrac{540^{\circ}}{5}=108^{\circ}

Thus, the measure of each angle formed by the lights on the perimeter is 108°.

7 0
3 years ago
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