Andrew estimated the weight of his dog to be 60 lb. The dog’s actual weight was 68 lb.

1 answer:

5 0

Correct - wrong percentage
-------------------- = ---------------
wrong    100
68 - 60    x
--------- = ----
60 100
8   x
---- = ----
<span>60 100
</span>800    60x
----- = ----
60 60
13.3% = x

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An equation and the steps to solve it are shown below:

Elan Coil [88]

Hello,

2x - one over four of (12x + 4) = 3
must be written:
2x-1/4 *(12x+4)=3
And we see a sign '-' before 1/4.

Step 1:
2x-(3x+1)=3 or 2x-3x-1=3 and not 2x+3x-1=3

Answer A
since Step 1, because incorrect signs have been used

And here, Mehek are there sufficients explanations?

4 0

3 years ago

Read 2 more answers

Steven wants to increase the number of books he reads per year. He currently reads 2 books a year. He wants to triple the number

Sladkaya [172]

Answer:

$B=2\times 3^n$

Step-by-step explanation:

<u>Exponential Growing </u>

Steven currently reads 2 books a year. He wants to triple the number of books read per year. The first year he should read

$2*3 = 6\ books$

By the second year, he should read

$2*3^2 = 18\ books$

By the third year, he should read

$2*3^3 = 54\ books$

We can clearly see there is a geometric progression of the number of books he should read for the year n. The general formula is, being B the number of books read at the year n

$\boxed{B=2\times 3^n}$