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sergey [27]
3 years ago
14

Review the scenario and the solution. Explain what is wrong with solution and correct the error.

Mathematics
2 answers:
butalik [34]3 years ago
7 0
2.25h(60m/hr)(1/3)=45m

So Rick spends 45 minutes studying math per night.
andrezito [222]3 years ago
5 0
He spends 45 minutes doing math.

Work - 2.25 time 60 gives the number of minutes he spent total = 135.
135 divided by 3 give the amount of time he worked on math since he          
spent a third of his time on math.
            
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Anyone know the answer to all of them added together
Evgesh-ka [11]

Answer:

13x + 14

Step-by-step explanation:

5x + 6 + 3x = 8x + 6.

8x + 6 + x + 1 + x + 1 + 2= 10x + 10

10x + 10 + (2²)(i think) = 10x + 14

10x + 14 + 3x = 13x + 14

final answer

3 0
3 years ago
Read 2 more answers
The area of a circle is 80.86cm2.<br> Find the length of the radius rounded to 2 DP.
weeeeeb [17]

Answer:

Solution given:

The area of a circle =80.86cm²

we have:

The area of a circle =πr²

substituting value of area of circle we get

80.86cm=3.14*r²

dividing both side by 3.14

80.86/3.14=3.14*r²/3.14

25.75=r²

doing square root on both side

\sqrt{25.75}=\sqrt{r²}

r=5.07cm

<u>The</u><u> </u><u>length</u><u> </u><u>of</u><u> </u><u>radius</u><u> </u><u>is</u><u> </u><u>5</u><u>.</u><u>0</u><u>7</u><u>cm</u>

5 0
3 years ago
If a backpack can fit 10 pounds of good, how many backpacks are necessary for 35 pounds of good.
slega [8]

Answer:

3.5

hope this helps

5 0
4 years ago
Read 2 more answers
Three students are playing a game using the spinner above. Each student draws three boxes on a piece of paper. The spinner is sp
harina [27]

Answer:

Probability

Step-by-step explanation:

In this game, the players rely entirely on chance to win, rather than skill. Therefore, this game would be particularly useful in helping students' understanding of probability.

(Spoken from someone who played this exact game 2 years ago to learn about probability.)

5 0
3 years ago
What is the average rate of change of f(x), represented by the table of values, over the interval [-3,4]
77julia77 [94]

Answer:

Average rate of change = 3

Step-by-step explanation:

  • We know that the average rate of change is basically a measure of the slope of the  secant line  in the closed interval [a, b].

here   a = -3 and b = 4

  • f(b) = f(4) = 27
  • f(a) = f(-3) = 6

⇒ Average rate of change = f(b) - f(a)  / b - a

                                            = (27 - 6) / (4 - (-3))

                                            = 21 / 7

                                            = 3

Therefore, Average rate of change = 3

6 0
3 years ago
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