Answer:
-7
Step-by-step explanation:
Answer: -1
Step-by-step explanation:
Considering order of operations, multiplication takes a higher precedent than subtraction. Therefore, you do the multiplication first.
3)

Solve for x by cross multiplying
Exact form: x= 191/7
Decimal form :x=27.28571428
Mixed number form:x=27 2/7
Answer:
Question 1: She needs 12 blue beads and 48 black beads.
Question 2: She needs 10 blue beads and 25 black beads.
Step-by-step explanation:
I used ratios
question one's ratio is 3:12 and the second one's ratio is 4:10. If you keep that ratio consistent than those are the numbers you get based on the number of beads long she wants her necklace.
that's my best guess
This is pretty much a "common sense" question. It'd be best to get rid of the dirty sanitizing water and start fresh; in other words, he should change (throw out) the dirty water and make a fresh sanitizer.
By the way, this is the Math section; next time, please choose a different section more suited to your questions.