We know that
Jayden cleans 12 rooms in---------------> <span>6 hours
X rooms-------------------------------------> 4 hours
X=4*12/6--------> 48/6---------> 8 rooms
that means </span>Jayden cleans in 4 hours 8 rooms
Chandra cleans 12 rooms in---------------> 12 hours
X rooms-------------------------------------> 4 hours
X=4*12/12--------> 48/12---------> 4 rooms
that means Chandra cleans in 4 hours 4 rooms
the answer is
<span>Jayden = 8 blankrooms
</span><span>Chandra = 4 blankrooms</span>
Using proportions, it is found that Donald should order 4 of the 0.05 gram tablets.
- This question is solved by proportions, using a <em>rule of three</em>.
- 4 tablets are needed, and they should combine for 0.2 grams. How many grams is there going to be on one tablet?
The <em>rule of three</em> is:
1 tablet - x grams
4 tablets - 0.2 grams
Applying cross multiplication:



Donald should order 4 of the 0.05 gram tablets.
For more on proportions, you can check brainly.com/question/24372153
Answer:
B - Jesse practices his guitar for less than 75 hours a month. He practices independently 16 times for x hours and has 10 lessons a month. How many hours could Jesse practice independently each time?
Step-by-step explanation:
Correct me if I'm wrong!!
Answer:
A) 25
Step-by-step explanation:
You use x= -b/2a in order to get your maximum so x= -10/ 2(-5) and you get x=1. You plug 1 into the function as h(1)=-5(1)^2 + 10(1)+ 20 which gets you 25