The amount of grams that she must use to make the solution she needs are: 12 grams and 8 grams.
<h3>Amount of grams</h3>
x grams of 20% and 20-x grams of 35%
Hence:
0.20x+0.35(20-x)=0.26×20
0.20x-0.35x+7=5.2
Collect like terms
-0.15x=-1.80
Divide both side by -0.15x
x=-1.80/-0.15
x=12 grams of 20% or 2.4 grams pure
20-x= (20-12) =8 grams of 35% or 2.8 grams pure
Therefore the amount of grams that she must use to make the solution she needs are: 12 grams and 8 grams.
Learn more about amount of grams here:brainly.com/question/1107267
#SPJ1
Suzanne will need 36 in of wood, an equation is
8+8+10+10
Answer:
c. you reject a null hypothesis that is true
Step-by-step explanation:
We need to remember the following concepts
Error type I: Is an error associated to the probability of reject a null hypothesis when it is actually true
Error type II: Is an error associated of not rejecting a null hypothesis when the alternative hypothesis is the true
And the best answer for this case would be:
c. you reject a null hypothesis that is true
Answer:
0.000675 g
Step-by-step explanation:
1 mg = 0.001 g
You're moving the decimal point 3 positions to the left.