D. The water evaporates and the salt remains in the beaker.
When a liquid is boiled the liquid evaporates, while the minerals settle.
Answer:
The velocity in the border of the roll is 0.025 m/s.
Step-by-step explanation:
We have a roll that has an angular velocity of

The tangent velocity (of the edge of the roll) can be calculated as

The velocity in the border of the roll is 0.025 m/s.
Part A: Charlie's answer is incorrect
In step 2 of Charlie's answer he subtracted 5 from each side. Since 5x is multiplication, he must DIVIDE each side by 5 to get x by itself. The problem should have worked out like this...
Step 1: 5x = 30
Step 2: x = 30/5
Step 3: x = 6
Part B: There is only 1 solution for this problem.
Answer:
Plan II is more favorable because the total amount to pay is less and the time to pay is greater than Plan I.
Step-by-step explanation:
<u><em>The question in English is</em></u>
Plan: "MY AUTO FOR TAXI"
Mr. Alberto decides to buy a car in order to perform taxi services. The price of the vehicle is S/45 000, but only S/20 000 is available. He then decides to finance the missing money through a bank. If between the two loan plans offered, you must choose one:
Which of the two options would you recommend to Mr. Alberto?
we know that
The compound interest formula is equal to
where
A is the total amount due
P is the amount owed
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
Plan I
substitute in the formula
Plan II
Compare
Plan I ----> t=2 years A=$27,562.50
Plan II----> t=3 years A=$27,318.18
therefore
Plan II is more favorable because the total amount to pay is less and the time to pay is greater than Plan I.
Answer:
X=1
Step-by-step explanation:
It’s 2 secant lines on a circle.
https://www.mathplanet.com/education/geometry/circles/advanced-information-about-circles
Look at that website. The part says that (ab*ad)=(ac*ae)
Doing that, we get
9*(9+11x)=10(10+8x)
81+99x=100+80x
19x=19
X=1