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3 years ago

O put on Your Thinking Cap!

Mathematics

1 answer:

True [87]3 years ago

7 0

Answer:

Michelle must get an 80 on her next test to keep her average score.

Step-by-step explanation:

Since Michelle got an average score of 80 on two tests, to determine what score she must get on the third test so that her average score for the three tests is the same as the average score for the first two tests, the following calculation must be performed:

X / 2 = 80

X = 80 x 2

X = 160

X x 3 = 80 x 3

X x 3 = 240

X = 240/3

x = 80

So, Michelle must get an 80 on her next test to keep her average score.

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Find the sum of all integers 30 to 80. (Is there a formula to do this?

Shkiper50 [21]

Answer:

Add all the numbers from 30 to 80 and that is your answer

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

A horseback rider travels 2 miles in 12 minutes. At this speed, how long does it take to travel 5 miles?

CaHeK987 [17]

Divide the time he traveled by the distance to find how fast he travels 1 mile, then multiply that by 5 miles:

12 minutes / 2 miles = 6 minutes per mile.

6 minutes per mile x 5 miles = 30 total minutes.

7 0

3 years ago

X + 76 what does x equal

Anna11 [10]

Answer:

well what's the equation to know what x equals

4 0

3 years ago

What are the solutions of the inequality? Graph the solutions. b – 4 > 4 Question 12 options: b > –8 b < –8 b > 8 b

12345 [234]

Hello there! :)

Answer:

$\boxed{b>8}\checkmark$

<h2><u><em>*****The answer should have a GREATER THAN SIGN AND POSITIVE TOO!*****</em></u></h2>

Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

PEMDAS

Order of operations

Parenthesis

Exponent

Multiply

Divide

Add

Subtract

Left/Right

First, you add by 4 from both sides of an equation.

$b-4+4>4+4$

Then, you add numbers from left/right.

4+4=8

$\boxed{b>8}$ , which is our final answer.

Hope this helps you!

Have a nice day! :)

-Charlie

Thank you so much! :)

6 0

3 years ago

Show all work to identify the asymptotes and zero of the function f of x equals 5 x over quantity x squared minus 25.

Lorico [155]

Answer:

asymptotes: x = -5, x = 5
zero: x = 0

Step-by-step explanation:

The function of interest is ...

$f(x)=\dfrac{5x}{x^2-25}=\dfrac{5x}{(x-5)(x+5)}$

The asymptotes are found where the denominator is zero. It will be zero when either factor is zero, so at x = 5 and x = -5

The zeros are found where the numerator is zero. It will be zero for x = 0.

The asymptotes are x=-5, x=5; the zero is x=0.

4 0

3 years ago