Answer:
<em>1710 trees up to 2016 (not including 2016)</em>
<em>2100 trees up to 2016 (including 2016)</em>
Step-by-step explanation:
Given that
Farm started with 30 trees in 2007.
Every year 40 more trees than the previous year.
It is actually an Arithmetic Progression (AP) with
First term, a = 30 and
Common Difference, d = 40
The AP will look like:
30, 70, 110, 150, ....
We have to find the sum of this AP upto 9 terms and 10 terms:
9 terms sum will give us the total number of trees up to 2016 (not including 2016).
10 terms sum will give us the total number of trees up to 2016 (including 2016).
Formula for sum of 'n' terms of an AP:
<em>1710 trees up to 2016 (not including 2016)</em>
<em>2100 trees up to 2016 (including 2016)</em>
Let w represent the number of weeks Emma saves her money. Then we want to find w for
60 +22w ≥ 249
22w ≥ 189 . . . . . . . . . subtract 60
w ≥ 189/22 ≈ 8.591
Emma will have enough money after 9 weeks.
Answer:
Step-by-step explanation:
Although you didn't finish the question Im assuming you want to know how much she'd get paid now. So you would do 500x.2=100 and would add that to her current pay. So she would be making 600 dollars a week
Answer:
Rational
Step-by-step explanation:
An irrational number is a number with forever continuing decimals. Plug it into the calc and you can see if there is a long decimal line that ends. You should get 1.4 in the calc, and since it does end, it is a rational number.
<span>To find the simplest form of a fraction, you have to find the greatest common factor (GCF). To do so, list out the factors of the numerator (28) and the denominator (35) and find the biggest common number between the two numbers.
</span>
Factors of 28: 1, 2, 4, 7, 14, 28
<span>Factors of 35: 1, 5, 7, 35
</span>
Out of those factors, we can see that 1 and 7 are the common factors, but 7 is the greatest which makes it our GCF.
<span>Now we can divide the numerator and the denominator by the GCF to receive our simplest form.
</span>
28 ÷ 7 = 4
35 ÷ 7 = 5
<span>Rewrite the fraction with the new numerator (4) and the new denominator (5).
</span>
The simplest form is: 4/5 or 0.8.
