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3 years ago

If a classmate is trying to estimate 42% of $122. Explain how your classmate should solve the problem. In a 6th graders work

Mathematics

2 answers:

horsena [70]3 years ago

8 0

Multiply 42% time 122 and your answer is 51.24

Bess [88]3 years ago

3 0

Well I say 42/100 × 122. Then when you reduce it you get 42/25 × 31. You will get an answer of 1301/25. But it is not over yet; when you divide 1301 with 25 and get the answer of 52.04. Now you must round it if to then nearest tenth place. That will be 52.0. Now you can round it to the nearest whole number or you can do that when you get your decimal answer in the first place. Anyway, when you round it to the nearest whole number you get 52 as your answer.

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Aaron is taking a multiple choice test with a total of 20 points available. Each question is worth exactly 1 point. What would b

Ede4ka [16]

Let x represent number of wrong questions answered by Aaron.

We have been given that Aaron is taking a multiple choice test with a total of 20 points available. Each question is worth exactly 1 point. We are asked to find Aaron's score (out of 20) if he got 6 questions wrong.

To find Aaron's score, we will subtract number of wrong answers from total score.

$\text{Aaron's score}=\text{Total score}-\text{Number of wrong answers}$

$\text{Aaron's score}=20-6$

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Therefore, Aaron's test scores would be 14 out of 20.

To find Aaron's score if he got x questions wrong, we will subtract x from total scores that is $20-x$ .

Therefore, Aaron's score would be $20-x$ , if he got x questions wrong.

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3 years ago

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Natali [406]

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3 years ago

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erik [133]

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3 years ago

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Let f(x) = x2 − 2x − 3. The secant line through (2, f(2)) and (2 + h, f(2 + h)) for f(x) has slope h + 2. Use this formula to co

Mkey [24]

Answer:

a) slope of secant line = 3

b) slope of tangent line = 2

Step-by-step explanation:

Given:

- The function:

f(x) = x^2 -2*x - 3

- The slope for f(x) @ x = 2 is:

slope = h + 2

Find:

a) The slope of the secant line through (2, f(2)) and (3, f(3))

b) The slope of the tangent line at x = 2

Solution:

- Since we are given the slope of the line computed via secant method. All we need to do is evaluate the slope given for respective question.

- The slope of secant line between points ( 2 , f(2) ) and ( 3 , f(3) ) is:

slope = h + 2

Where, h is the step size between two points. h = 3 - 2 = 1

slope = 1 + 2 = 3

Hence, the slope of the secant is 3.

- The slope of tangent line @ points ( 2 , f(2) ) is:

slope = Lim _ h-->0 (h + 2)

Where, h step size is reduced to infinitesimal small number. Hence, h = 0

slope = 0 + 2 = 2

Hence, the slope of the tangent is 2.

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3 years ago

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deff fn [24]

Answer:

Step-by-step explanation:

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3 years ago

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