2 years ago

Solving exponential growth and decay problems

Mathematics

1 answer:

Paul [167]2 years ago

6 0

See tha attached pdf file and let me know how useful this answer is.

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What property was used on 14k+2(3k+5)-5=10 to obtain 14k+6k+10-5=10

ohaa [14]

The difference between

i) 14k+2(3k+5)-5=10 and

ii) 14k+6k+10-5=10

is the equality 2(3k+5)=6k+10

The property used here, can be described for any numbers a, b and c as:

$a \cdot (b+c)=a \cdot b +a \cdot c$

This is called the DISTRIBUTIVE PROPERTY

Answer: DISTRIBUTIVE PROPERTY

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2 years ago

A baby wriggled so much that weighing him at the clinic was a problem. So the doctor held the baby and stood on a scale. Then th

Pepsi [2]

X = weight of the baby.
y = weight of the doctor.
z = weight of the nurse.

x + y = 78 so y = 78 - x
x + z = 69 so z = 69 - x
x + y + z = 142

substitute y = 78 - x and z = 69 - x into x + y + z = 142

x + y + z = 142
x +78 - x + 69 - x = 142
-x + 147 = 142
-x = - 5
x = 5

answer

the weight of the baby was 5 kg

6 0

2 years ago

Read 2 more answers

What is the common difference between successive terms in the sequence? 0.36, 0.26, 0.16, 0.06, –0.04, –0.14,

TiliK225 [7]

0.10
is the answer for that

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2 years ago

Sally wants to decrease 150 by 3% Complete this statement to show how Sally can decrease 150 by 3%

shutvik [7]

Ok I’m not sure this is right but I did 150x 3% and got 4.5!

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