The equation y = -20x + 275 represents the balance of Cassie's bank account y after x months. Which of the following statements
1 answer:
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Answer:
50 yellow marbles.
Step-by-step explanation:
Information:
170 marbles
RED : BLUE : YELLOW
9 : 3 : 5
Solving:
To find out how many yellow parts there are, we need to find out how many marbles 5 parts account to.
Altogether, 9 + 3 + 5 = 17. This means there are 17 parts.
The bag contains 170 marbles and the ratio adds up to 17 parts.
We can figure out what 1 part of the ratio accounts to by dividing 170 by 17.
= 10.
1 part = 10
Now remember yellow is 5 parts, now that we know that 1 part is 10, we need to multiply 10 by 5 to find out how many yellow marbles we have.
5 x 10 = 50.
Therefore we have 50 yellow marbles.
Answer:
Step-by-step explanation:
Left
As near as I can tell, the question is x^(1/2) * x^(1/2) = The bases are the same, so all you do is add the powers.
x^(1/2 + 1/2) = x^1 which is just x.
Right
The is another one where the work is hard to show. The numerator (m) of the fraction is the power and the denominator (n) is the root. That sentence is all the work there is.
So you would write
Answer:
Step-by-step explanation:
<u>Formula for circumference of a circle is</u>:
Circumference =
<em>Given circumference of the ring is </em>
<em>Now solving for the radius gives us:</em>
We know that area of a circle is , substituting the value of r we found, we get the area as:
area (A) =
Hence the Area (A), in terms of is
Answer:
You would have approximately 201 insects.
Step-by-step explanation:
To calculate the final population of the insects, you need to first insert the values of each variable you know into the equation. The initial population at time would be 100 insects, the rate of population growth coverted to decimal form would be 0.1, and the elapsed time since time
is 7 days. Now the new equation would be
.
⇒ ≈
⇒ ≈
You will have 201 insects in 7 days (rounded to the nearest insect).