Donna read 18 out of 30 pages in her book what percent of the book did she read

Mathematics

1 answer:

Serggg [28]2 years ago

3 0

Answer:

60%

Step-by-step explanation:

18 divided by 30 is 0.6, and then just move the decimal two to the right and you have 60.

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Answer before 11:59 plzzz

Alex17521 [72]

0.0392 or 3.92%
The exponential growth formula can find the interest rate.

y - tolat value (P +I) (216)
a - principal (200)
r- rate (unkown)
x - time in years (2 yrs)
Substitute known values

divide both sides by 200

take the square root of both sides

subtract 1 on both sides
r = 0.0392 or 3.92%

5 0

2 years ago

A farmer has both pigs and chickens on his farm there are 78 fee and 27 heads how many pigs and how many chickens are there

Andre45 [30]

Assuming health non-mutated animals:
$Feet = 4*Pigs + 2*Chickens$
$Heads = Pigs + Chickens$

By back substitution:
$78 = 4*(27-Chickens) + 2*Chickens$
$78 = 108 -2*Chickens$
$-30 = -2*Chickens$
$Chickens= 15$

Then:
$27 = Pigs + 15$
$Pigs = 12$

To check:
$Feet = 4*Pigs + 2*Chickens$
$78 = 4*12 + 2*15$
$78 = 48 + 30$
$78 = 78$ CHECKS

6 0

3 years ago

2x=20+20 Find the value of x

NikAS [45]

Answer:

$\sf\longmapsto \: x = 20$