<h2><em>6.96cm^2.</em></h2><h2><em>5.8 x 1.2 = 6.96cm^2.</em></h2>
Answer:
Step-by-step explanation:
Let the number of ounces of
A = x
B = y
A scientist has two solutions, which she has labeled Solution A and Solution Each contains salt. She knows that Solution A is 40% salt and Solution B is 55% salt. She wants to obtain 90 ounces of a mixture that is 45% salt. How many ounces of each solution should she use?
Our system of equations is given as
x + y = 90.... Equation 1
x = 90 - y
40% × x + 55% × y = 45% × 90 ounces
0.4x + 0.55y = 40.5....Equation 2
We substitute 90 - y for x in Equation 2
There are 12 tickets needed. Just add all the 4's together.
I had this question before. As a percentage is 69.4 repeating
Answer:
d = 16 / 3.14
Step-by-step explanation:
The diameter is equal to the circumference divided by 3.14.
