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soldi70 [24.7K]
3 years ago
6

Need answer ASAP

Mathematics
1 answer:
vova2212 [387]3 years ago
3 0

Answer:

Nicole is now 15 years old

Christine is now 5 years old

Step-by-step explanation:

x = age Nicole

y = age Christine

x = 3y

x+5 = 2×(y+5) = 2y + 10

3y + 5 = 2y + 10

y + 5 = 10

y = 5

x = 3y = 3×5 = 15

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A scientist observes the bacteria’s growth. In the first observation, there were 12 bacteria, 24 in the second observation, 48 i
miv72 [106K]

Answer:

<u>Step-by-step explanation:96 in the fourth since they are adding the answer itself two times before you get the other like 12 bacteria and then 24 so that means 12 + 12 is 24 and the third one 48 so 24 +24 =48</u>

fourth 48 + 48=96

 fifth 96+96=192

sixth  192+192=384

seventh 384+384=768

last but not least 768+768 = 1536

so your answer is 1,536

7 0
2 years ago
Show the work please and thanks
sineoko [7]

Answer:40( fourty) is the answer

Step-by-step explanation:

4 0
3 years ago
charlie runs laps around a track. The table shows how long it takes him to run different numbers of laps. How long would it take
cestrela7 [59]

Answer:

<u>25 minutes</u>

Step-by-step explanation:

From the table,

2 laps takes time 10 min.

4 laps takes time 20 min.

6 laps takes time 30 min.

8 laps takes time 40 min.

10 laps takes time 50 min.

So, we can deduce the relation between the number of laps and time

the time over the number of laps at each row = 5

Which mean 1 lap takes 5 minutes

Therefore, to run 5 laps, it takes = 5 * 5 = 25 minutes

3 0
3 years ago
If y=27 when x= 8 find y when x =11
Rina8888 [55]

Answer:

37 1/8

Step-by-step explanation:

The problem probably assumes direct variation

y=kx

IF so, then plug in the values and solve for k

27=k(8)

k = 27/8

y= (27/8)x.  Now let x = 11

y = (27/8)11 = 27(11)/8 = 37.125 = 37 1/8

y = 37 1/8

the problem is making some assumption about the relation between x and y.  The simplest assumption that's likely is direct variation,  that x and y are linearly related.  The graph is a straight line through the origin with slope = 27/8

6 0
3 years ago
When I subtract 3 from three times my number I get 12. Mystery number is...
Dmitry_Shevchenko [17]

Answer:

5

Step-by-step explanation:

(x times 3) minus 3

12 plus 3 is 15

15 divide by 3 is 5

4 0
3 years ago
Read 2 more answers
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