X=13 becuase im in 10th grade man c'mon
She did not convert 1 minute into 60 seconds. and 15 hours in seconds.
she did it like this:
15min ×60 seconds/1 min
900 seconds.
The SI unit of time is second so she should have converted the hours and minutes into seconds first and then start the calculation.
Part A
The starting amount of water is 95 cubic meters or m^3 for short. This is the y intercept because it handles the starting amount.
Then the pool is filled at a rate of 4 m^3 per minute. This is the slope, i.e. the rate of change. Because this rate of change is constant, we have a linear equation.
We go from y = mx+b to y = 4x+95
Replace x with t to get the answer.
<h3>Answer: 4t + 95</h3>
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Part B
Plug in t = 17 and compute
V(t) = 4t + 95
V(17) = 4*17 + 95
V(17) = 163
<h3>Answer: 163</h3>
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Part C
We go in reverse compared to the previous part.
This time we don't know the t value, but we are given the V(t) value instead.
V(t) = 231
4t+95 = 231
4t = 231-95
4t = 136
t = 136/4
t = 34
<h3>Answer: 34</h3>
Answer:
10% probability that the number is greater than 2, then P
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
In this question:
Event A: Number greater than 2.
Event B: Letter P.
These events are independent, so:
P(A)
There are 5 numbers.
3, 4 or 5, that is, 3 numbers greater than 2.
3/5 = 0.6. So P(A) = 0.6.
P(B)
6 letters, one of which is P. So
P(B) = 1/6 = 0.1667.
What is the probability the number is greater than 2, then P?
10% probability that the number is greater than 2, then P
Look at the explanation to understand the answer.
Step-by-step explanation:
<u><em>Step 1.</em></u>
Rewrite (a2) in a2 + 6 so the <em>a </em>is before 2
(a2 + 6) + (4a + 6) ⇒ (2a + 6) + (4a + 6)
<u><em>Step 2.</em></u>
We'll need to organize 2a + 6 + 4a + 6 into groups of like terms, so we can combine them easier.
They're two groups of like terms in the expression.
First group: 2a and 4a
Second group: 6 and 6
Now, rewrite it so the 6 is added by the other 6.
2a + 4a + 6 + 6
<u><em>Step 3.</em></u>
We'll need to combine like terms in 2a + 4a + 6 + 6 by adding all the numerical coefficients and copying the literal parts, if any. No numerical coefficient implies value of 1. Numerical 'like' terms will be added.
We already know the groups with like terms.
First group: 2a and 4a
Second group: 6 and 6
Let's solve.
2a + 4a = 6a
6 + 6 = 12
Combine 6a and 12 up and you'll get your answer.
6a + 12 is the answer.
