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ivanzaharov [21]
3 years ago
15

I don't understand math @ all please help

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
7 0
More than likely it is c, because I looked over all the answers and c was the best one for the problem
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Kesia knows that 1/4=0.25. Explain how she could use this fact to determine the decimal equivalent of 5/8
STatiana [176]
She knows that
0.25 =  \frac{1}{4}  =  \frac{2}{8}
\frac{5}{8}  =  \frac{2}{8}  +  \frac{2}{8}  +  \frac{1}{8}  = \\ 0.25 + 0.25 +  \frac{0.25}{2} =   \\ 0.25 + 0.25 + 0.125 = 0.625
4 0
3 years ago
Read 2 more answers
Which ordered our is a solution for this system of linear inequalities?
shutvik [7]

Answer:

D) (4,5)

Step-by-step explanation:

the ordered pair (4, 5) is the only one that, when substituted into each inequality statement, made both of them true

3 0
3 years ago
50 ft
juin [17]

9514 1404 393

Answer:

  1725 ft²

Step-by-step explanation:

The formula for the area of a trapezoid is ...

  A = 1/2(b1 +b2)h

Here, the bases are given as 65 ft and 50 ft, and the height is 30 ft. Then the area is ...

  A = 1/2(65 ft +50 ft)(30 ft) = (1/2)(115 ft)(30 ft) = 1725 ft²

You tell the salesman your lawn area is 1725 square feet.

5 0
3 years ago
OK this is another question which I need help on please please help if you can. CAUSED ME MUCH DISTRESS
r-ruslan [8.4K]

Answer:

15 = 2x - 3y

Step-by-step explanation:

We have the two points P1(3,-3) and P2(9,1).

First, calculate the slope between those points:

slope = \frac{y_2 - y_1}{x_2 - x_1} = \frac{1 - (-3)}{9 - 3} = \frac{4}{6} = \frac{2}{3}

Now simply move 3 steps from (3,-3) towards the y-axis to get the intersection with the y-axis (each step reduces x by 1 and applies the slope to the y-value):

(3,-3)

---> (2, -3 - (2/3)) = (2,-3 2/3)

---> (1, (-3 2/3) - 2/3) = (1, -4 1/3)

---> (0, (-4 1/3) - 2/3) = (0,-5)

This tells us, that our line intersects the y-axis at (0,-5).

The general form of a line is f(x) = <SLOPE> * x + <Y-VALUEATXEQUALSZERO>.

In our case: f(x) = y = (2/3)x -5.

To get it into the correct form, we simply subtract y from both sides and get:

0 = (2/3)x - y - 5

To get only integers just multiply everything with 3 and add 15 and get:

15 = 2x - 3y, which fulfils the form asked for in the problem.

3 0
2 years ago
Consider the age distribution in the United States in the year 2075 (as projected by the Census Bureau). Construct a cumulative
MrRissso [65]

Answer:

The cumulative frequency plot is also attached below.

Step-by-step explanation:

The data provided is as follows:

Age Group Frequency

   0 - 9             34.9

  10 - 19             35.7

20 - 29             36.8

30 - 39             38.1

40 - 49             37.8

50 - 59             37.8

60 - 69             34.5

70 - 79             27.2

80 - 89             18.8

90 - 99               7.7

100 - 109       1.7

Consider the Excel output attached.

The cumulative frequency are computed in the Excel sheet.

The cumulative frequency plot is also attached below.

From the cumulative frequency plot it can be seen that in the future most people will belong to a higher age group rather then the lower ones.

8 0
3 years ago
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