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Oduvanchick [21]
3 years ago
9

The sum of 5 consecutive even numbers is 100 what is the first number in this sequence

Mathematics
2 answers:
guapka [62]3 years ago
8 0
If x=first even number in sequence, then the next even number would be that number plus 2, plus 4, and so on. 

x + (x+2) + (x+4) + (x+6) + (x+8) = 100

5x+20=100
5x=80
x=16
hoa [83]3 years ago
7 0
[16]+18+20+22+24=100
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What will the last payment be to pay off a $1,250 computer plus 8% sales tax with monthly payments of $120?
Natasha_Volkova [10]
1250x.08= 100+1250= 1350 / 120 is 11.25 so 11 months of paying $120 leaves a $30 12th month payment.
7 0
3 years ago
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Using the segment addition postulate, which is true? What is the measure of AngleDCF? Three lines extend from point C. The space
Flura [38]

Answer:

129

Step-by-step explanation:

If three lines CD, CE and CF extend from point C, then the following addition postulate is true;

<DCE + <ECF = <DCF

If the space between line C D and C E is 75 degrees, then <DCE =  75

If the space between lines C E and C F is 54, then <ECF = 54.

Substitute the given values into the expression above will  give;

<DCF =<DCE + <ECF

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Hence the measure of <DCF  is 129°

8 0
3 years ago
Simplify the following ratios:
jenyasd209 [6]
A) 3:4
b) 2:7
c) 3.5
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6 0
3 years ago
Plz gyz ineed the calculation
postnew [5]

Answer:

1/8

Step-by-step explanation:

1st day......1/3

2nd day....1/6

3rd day....3/8

common denominator of 24

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6 0
3 years ago
Ellie practices piano 2/3 h per day, several days each week. She practiced piano 32 2/3 hours during the summer. What equation c
SVEN [57.7K]

hello :)

so let me just give you the answer first:

2/3 * d = 32 2/3

here is why

so since the sentence said 2/3 PER day, then d (the number of days) multiplied by the time spent each day playing piano should give you how much time was spent in total over the certian number of days.

the 32 2/3 is just the amount of time ellie spent (as you have said)

so, this equation would be the correct one.

i hope this helped you out! please vote me for brainliest and have splendid day!

4 0
3 years ago
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