Answer:
k is 63
Step-by-step explanation:
The positive integer k has exactly two positive prime factors, 3 and 7
Lets write the combination of prime factors including 1 and k
1, 3, 7, _ , _ , k
using the above factors 3 times 7 is also the factor
so 21 is the other factor
1, 3, 7, 21 , _ , k
Now we use the given statements
(1) 3^2 is a factor, so 9 is also a factor
1, 3, 7, 21 , 9 , k
7^2 is NOT a factor of k. so 49 is not a factor of k
So 3,3 and 7 is the factor of k
![3 \cdot 3 \cdot 7 \cdot = 63](https://tex.z-dn.net/?f=3%20%5Ccdot%203%20%5Ccdot%207%20%5Ccdot%20%3D%2063)
K is 63
First of all, 25% of means that the new price was 75% of the original price, so:
25% off of $120.00
120.00×75%=$90.00
7.8% percent taxes
$90×7.8%=$7.02
Finally,
$90.00+$7.02=$97.02 is your final answer. Hope it help!
Answer:
x = 26
Step-by-step explanation:
Start with - 9 + x = 17, or -9 + x = 17
Solve for x by isolating x on the left side. To do this, add 9 to both sides, obtaining x = 26
Answer:
6
Step-by-step explanation:
Hope thats the correct answer.
![10 \frac{1}{2} \div2 \frac{1}{3} = \frac{21}{2} \div \frac{7}{3} = \frac{21}{2} \times \frac{3}{7} = \frac{9}{2} = 4 \frac{1}{2}](https://tex.z-dn.net/?f=%2010%20%5Cfrac%7B1%7D%7B2%7D%20%5Cdiv2%20%5Cfrac%7B1%7D%7B3%7D%20%3D%20%5Cfrac%7B21%7D%7B2%7D%20%5Cdiv%20%5Cfrac%7B7%7D%7B3%7D%20%3D%20%5Cfrac%7B21%7D%7B2%7D%20%5Ctimes%20%5Cfrac%7B3%7D%7B7%7D%20%3D%20%5Cfrac%7B9%7D%7B2%7D%20%3D%204%20%5Cfrac%7B1%7D%7B2%7D%20)
Ans: He will take 4 1/2 days to harvest 10 1/2 acres.