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3 years ago

14

AAA construction company increases their work force from 12 workers to 20 workers in a year. What is the approximate percent inc

rease of the number of workers?

1 answer:

Sonbull [250]3 years ago

7 0

Answer:

66.67

Step-by-step explanation:

20-12=8

8/12=0.6666667

0.6666667x100=66.67

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evaluate each of the given expression if P = - 6 and q = 5<br> 5p-q=<br> 5pq=

gayaneshka [121]

Answer:

5p-q = 5. (-6) - 5 = -30 - 5 = -35

5pq= 5. (-6) . 5 = -30 . 5 = -150

Step-by-step explanation:

8 0

3 years ago

How many subsets of the set of divisors of 72 contain only composite numbers? For example, {8,9} and {4,8,12}$ are two such sets

kykrilka [37]

Answer:

257

Step-by-step explanation:

The divisors of 72 which are composite number are

4,6,8,9,12,18,36,72 (composite numbers are those numbers which are formed by the multiplication of two whole numbers}

So the total number of divisors which are composite are = 8

So total number of subset $=2^n=2^8=256$

In question it is said that also include empty set in count

So total number of subset =256+1=257

7 0

4 years ago

The total cost of 2 novels and 4 fiction books is $84. Each novel costs $6 more than each fiction book. What is the total cost o

zhuklara [117]

Answer:

$30

Step-by-step explanation:

Let,

x - fiction book

x + $6 - novel

EQUATION:

4(x) + 2(x + $6) = $84

6x + $12 = $84

6x = $84 - $12

6x = $72

x = $12

SUBSTITUTE:

novel = $12

fiction = $18

TOTAL COST OF NOVEL AND FICTION

$18 + $12 = $30

7 0

2 years ago

If f(x)=x^2+3x+5, what is f(a+h)

valina [46]

Put (a+h) where x is and simplify to the extent you desire.
f(a+h) = (a+h)^2 +3(a+h) +5
= a^2 +2ah +h^2 +3a +3h + 5
f(a+h) = a^2 +3a +5 +h(2a +3) +h^2

8 0

3 years ago

Find the 12th term of the sequence which has a first term of 14 and has a common ratio of 1.03. Round your answer to the nearest

wel

Since the series has a common ratio then it is a geometric series.
thus it will follow the explicit formula given by:
an=ar^(n-1)
plugging in the values we get:
an=14(1.03)^(n-1)
thus the 12th term will be:
a12=14(1.03)^(12-1)
a12=19.38

5 0

3 years ago