Answer:
Noah is 17 and Tina is 7.
Why?
Let t represent Tina’s age.
So, 2t + 3 is Noah’s age.
This is your equation;
2t + 3 + t = 24
Now, simplify so t is on one side.
3t = 24 - 3
3t = 21
t = 21/3
t = 7
Tina’s age is 7, and Noah (according to the expression made for him) is 17.
Check:
7 + 17 = 24
Answer: 30 couples.
Justification:
You can follow a systematic approach to tackle this kind of problems.
Construct a chain of ratios whose units cancel out to yield to a result with the right units of the answer you are looking for.
In this case you want to know the number of couples that took the ride in 30 minutes.
The input data are:
1 couple / seat
1 seat / minute
Then, by multiplying those two data you get: [1 couple / seat] * [1 seat / minute], which, treating the units appropiately yields to 1 couple / minute.
Next, you realize that when you muliply 1 couple / minute times the number of minutes you get the number of couples that took the ride in that time.
So, the answer is: 1 couple / minute * 30 minute = 30 couples (the minutes cancel out because they appear in the denominator and numerator).
So, when you work with ratios and proportions, the use of units helps you a lot to figure out the way to get the answer.
Step-by-step explanation:
8% of 24
8 ÷ 100= 0.08
0.08 × 24 = 1.92
24.00 + 1.92 = 25.92
A soliloquy <span>is a device often used in drama when a character speaks to himself or herself, relating thoughts and feelings, thereby also sharing them with the audience, giving off the illusion of being a series of unspoken reflections.
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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<span>Part A: The coefficients are 20 and 9 and variables in the expression are x and y.
</span><span>Part B: The number of terms are two in the expression, they are 20x and 9y,as they are separated by an addition sign.
</span><span>Part C: 9y term in the expression shows the total earned from trimming hedges.</span>
