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77julia77 [94]
3 years ago
14

Celo is 38 years old, which is twice as old as Clara will be in 7 years

Mathematics
2 answers:
evablogger [386]3 years ago
5 0
Cleo would be 193 years old when Clara turns 38
Oxana [17]3 years ago
5 0

Answer: Cleo will be 64.

Step-by-step explanation:

38/2= 19

19-7= 12

Clara is 12

38-12= 26

38+26=64

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Use compatible numbers to estimate the quotient. 635÷9
gayaneshka [121]
Here, 635/9
Nearest divisible of 9 is 630 so, 
It would be: 70 * 9 + 5

In short, Your Quotient would be 70

Hope this helps!
6 0
3 years ago
Working together, Tyler and Evan painted a fence in 8 hours. If it takes Tyler 12 hours less than it takes Evan to paint the fen
Rudik [331]

Answer:

24hours

Step-by-step explanation:

let Evan be x, Tyler=x-12,equate;1/x+1/(x-12)=1/8,to get x=24 or 4.The correct value of x=24 because if you take x=4 means that Tyler=-8hours which is impossible

8 0
4 years ago
If using the method of completing the square to solve the quadratic equation x2 −4x+13=0, which number would have to be added to
stiv31 [10]
X²-4x+(4/2)²-(4/2)²+13=0
x²-4x+4-4+13=0


-4 should be added



Mark brainliest please
7 0
3 years ago
PLEASE HELP ME!!
Ludmilka [50]

Answer:

<h2>The population will reach 1200 after about 2.8 years</h2>

Step-by-step explanation:

The question is incomplete. Here is the complete question.

The population of a certain species of bird in a region after t years can be modeled by the function P(t) = 1620/ 1+1.15e-0.42t , where t ≥ 0. When will the population reach 1,200?

According to question we are to calculate the time t that the population P(t) will reach 1200.To do this we will substitute P(t) = 1,200 into the equation and calculate for the time 't'.

Given;

P(t) = \frac{1620}{1+1.15e^{-0.42t} } \\\\at \ P(t)= 1200;\\\\1200 =  \frac{1620}{1+1.15e^{-0.42t} }\\\\cross\ multiplying\\\\1+1.15e^{-0.42t} = \frac{1620}{1200} \\\\1+1.15e^{-0.42t}  = 1.35\\\\1.15e^{-0.42t} = 1.35-1\\\\e^{-0.42t} = \frac{0.35}{1.15}\\ \\e^{-0.42t}  = 0.3043\\\\Taking \ ln\ of\ both\ sides\\\\lne^{-0.42t}  = ln0.3043\\\\-0.42t = -1.1897\\\\t = \frac{-1.1897}{-0.42} \\\\t = 2.8 years\\\\

The population will reach 1200 after about 2.8 years

6 0
3 years ago
Mark and Henry win some money and share it in the ratio 1:3. Mark gets £9. How much did Henry get?
Fed [463]

Answer:

Hope this helps!!!!!!

Mark Brainlest!!!!!!!!!!

Step-by-step explanation:

Mark and Henry win some money and share it in the ratio 1:3. Mark gets £9. How much did Henry get?

Ratio = 1 : 3

Let Mark's share be 1x = x

and Henry's share be 3x

We know that Mark gets £9

So,

1x = x = £9

Then 3x = £(3 * 9) = £27

HENCE,

Mark's share = £9

Henry's share = £27

Total money = Mark's share + Henry's share = £9 + £27 = £36

6 0
3 years ago
Read 2 more answers
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