A = oz of the solution A
b = oz of the solution B
The scientist knows that solution A is 45% salt and solution B is 95% salt. She wants to obtain 80 ounces of a mixture that is 65% salt.
a + b = 80
0.45a + 0.95b = 0.65*80
by solving the above system of equations you'll find····
a = 48 oz
b = 32 oz
~I hope this helped~
If it doesn't make since, I can try to switch up the wording ^^
Answer:
y = 17
Step-by-step explanation:
isolate the variable by dividing each side by factors that don't contain the variable.
Basically you need to find the answer choice that is rational. That way the sum will also be rational.
√7 is irrational as well as π and 0.5050050005...
2/4 is the only rational option.
answer: D
Answer:
PQ=6,69 units
Step-by-step explanation:
b/Sin32°=c/Sin72°
PQ/Sin32°=12/Sin72°
PQSin72°=12Sin32°
PQ=12Sin32°/Sin72°
PQ=6.69 units
Answer:
6
Step-by-step explanation:
We use rates to solve this so we do 28/4=7.
Using that, we know he can do 7 quizzes in 1 week.
Now 7 times 6= 42 right? so do 1 times 6.
The final answer is 6 weeks.
Hope this helps :)
