Answer:
10,000,000
Step-by-step explanation:
1.0 x 10^5 = 100000
100000 dust mites = 1 yd^2
All we do is multiply 100k by 100.
Then, we get 10mil.
4200/70
take out a zero on both top and bottom
420/7
Simplify
= 60
Hope this helps!
Brainliest and a like is much appreciated
Answer:
49/24
Explanation:
First, find the common denominator (24)
Secondly, multiply 2/3 by 8 since 8x3=24
Now you have 16/24 instead of 2/3
Thirdly, multiply 3/4 by 6 since 4x6=24
Now you have 18/24 instead of 3/4
Lastly, multiply 5/8 by 3 since 8x3=24
Now you have 15/24 instead of 5/8
Since you found the common denominator and changed all of the fractions you can add them all together.
16/24 + 18/24 + 15/24 = 49/24
Hope this helps!!!
You can put this solution on YOUR website!
(2x+5)(6x-1)=120
2x(6x-1)+5(6x-1)=120
12x^2-2x+30x-5=120
12x^2+28x-5-120=0
12x^2+28x-125=0
Find the roots of the equation by quadratic formula
Let's solve ~
![\qquad \sf \dashrightarrow \:[( 8 \sdot3) + (8 \sdot2i) + (5i \sdot3) + (5i \sdot2i)] -[( 4 \sdot4) + (4 \sdot - i) + (i \sdot4) + (i \sdot - i)]](https://tex.z-dn.net/?f=%5Cqquad%20%5Csf%20%20%5Cdashrightarrow%20%5C%3A%5B%28%208%20%5Csdot3%29%20%2B%20%288%20%5Csdot2i%29%20%2B%20%285i%20%5Csdot3%29%20%2B%20%285i%20%5Csdot2i%29%5D%20-%5B%28%204%20%5Csdot4%29%20%2B%20%284%20%5Csdot%20-%20i%29%20%2B%20%28i%20%5Csdot4%29%20%2B%20%28i%20%5Csdot%20-%20i%29%5D)
![\qquad \sf \dashrightarrow \:[24+ 16i + 15i+ 10i {}^{2} ] -[16 - 4 i+ 4i - i {}^{2} ]](https://tex.z-dn.net/?f=%5Cqquad%20%5Csf%20%20%5Cdashrightarrow%20%5C%3A%5B24%2B%2016i%20%2B%2015i%2B%2010i%20%7B%7D%5E%7B2%7D%20%5D%20-%5B16%20-%204%20i%2B%204i%20-%20i%20%7B%7D%5E%7B2%7D%20%5D)
![\qquad \sf \dashrightarrow \:[24+ 31i+ 10 {}{( - 1)} ] -[16 - ( - 1){}^{} ]](https://tex.z-dn.net/?f=%5Cqquad%20%5Csf%20%20%5Cdashrightarrow%20%5C%3A%5B24%2B%2031i%2B%2010%20%7B%7D%7B%28%20-%201%29%7D%20%5D%20-%5B16%20-%20%28%20-%201%29%7B%7D%5E%7B%7D%20%5D)
![\qquad \sf \dashrightarrow \:[24+ 31i - 10 {}{} ] -[16 + 1{}^{} ]](https://tex.z-dn.net/?f=%5Cqquad%20%5Csf%20%20%5Cdashrightarrow%20%5C%3A%5B24%2B%2031i%20-%2010%20%7B%7D%7B%7D%20%5D%20-%5B16%20%20%2B%201%7B%7D%5E%7B%7D%20%5D)
![\qquad \sf \dashrightarrow \:[14+ 31i {}{} ] -[17{}^{} ]](https://tex.z-dn.net/?f=%5Cqquad%20%5Csf%20%20%5Cdashrightarrow%20%5C%3A%5B14%2B%2031i%20%7B%7D%7B%7D%20%5D%20-%5B17%7B%7D%5E%7B%7D%20%5D)
I hope you understood the procedure ~
