I’m sorry I don’t really know how to answer this but Ik someone who can
The options of the question are
A.)BFC B.)CFG C.)GFD D.)EFA
we know that
A linear pair forms a straight angle which contains 
º, so you have 
angles whose measures add to degrees, which means they are supplementary.
Vertical Angles are two angles whose sides form two pairs of opposite rays (straight lines).Vertical angles are congruent
in this problem
Part a) Linear Pair
1) m∠EFA+m∠EFD=°
angles ∠EFA and ∠EFD are a linear pair
2) m∠BFD+m∠EFD=°
angles ∠BFD and ∠EFD are a linear pair
3) m∠BFD+m∠BFA=°
angles ∠BFD and ∠BFA are a linear pair
4) m∠BFA+m∠AFD=°
angles ∠BFA and ∠AFD are a linear pair
Part b) Vertical angles
1) m∠EFA=m∠BFD
angles ∠EFA and ∠BFD are a vertical angles
2) m∠AFB=m∠EFD
angles ∠AFB and ∠EFD are a vertical angles
therefore
the answer is the option
D.) EFA
Taking the 3 solutions as 3 different terms, we can create an equation as follows:
Solution 1 : 10mL with 20% acid
Solution 2 : 30mL with x% acid
Solution 3 : 40mL with 32% acid
Since solution 1 + solution 2 = solution 3, let us substitute the given values we have:
10(0.2) + 30(x) = 40(0.32)
2 + 30x = 12.8
To solve for the unknown concentration x, we subtract 2 from both sides:
2 + 30x - 2 = 12.8 - 2
30x = 10.8
Dividing both sides by 30:
30x/30 = 10.8/30
x = 0.36
Therefore the unknown solution is 36% acid.
Answer:
800 milliliters
Step-by-step explanation:
we know that
To find out the total amount Kelly drank, add the amount of coffee and the amount of yogurt and convert the result to milliliters.
so
0.5+0.3=0.8 liters
Remember that
1 liter= 1,000 milliliters
so
0.8 liters=0.8*1,000=800 milliliters
$1 = 100 pennies
$10 = 200 nickels
$30 = 300 dimes
$100 = 400 quarters
In total: $141, or Answer C
