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Sergeu [11.5K]
3 years ago
12

Erin received the following scores on her last four spelling tests.

Mathematics
2 answers:
Alik [6]3 years ago
7 0

Answer: 0.8 I think...

Step-by-step explanation:

Well in order to change those numbers into a percent, to move the decimal two times to the right or left.  

82% is already a decimal.

0.8 = 80% because you move the decimal two times to the right.

2125 = 21.25 because you move the decimal two times to the left

1720 = 17.20 because you move the decimal two times to the left

Tatiana [17]3 years ago
4 0

The second one, 82% is Erin's highest score

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Help? I'd Appreciate it!
kondor19780726 [428]

<u>Answer</u>

y = (1/2)x - 1


<u>Explanation</u>

The first step is to get the gradient of the line.

The two points in the line are; (2,0) and (-2, -2).

Gradient = (-2 - 0)/(-2, - 2)

                = -2/-4

                 = 1/2

To get the function we use one of the point (2,0) and a general point (x,y).

1/2 = (y - 0)/(x - 2)

1/2 = y/(x - 2)

(x - 2) = 2y

2y = x - 2

y = (1/2)x - 1

8 0
3 years ago
oel biked 9 miles east and then 12 miles north. If he biked back to his starting point using the most direct route, how many mil
kvasek [131]

Answer:

36 miles

Step-by-step explanation:

(Imagine a huge triangle on a perfectly open space-- not with streets or houses or cornfields.)

The dimensions of the two sides given are multiples of a classic Pythagorean Triple: 3, 4, 5.    3^{2} + 4^{2} = 5^{2}  

9 is 3x3, 12 is 3x4 so the remaining side would be 3x5  15

Add those 3 sides to get the total distance, 36 miles.

6 0
3 years ago
Please I will rate you with 5 stars just please help me with this problem
olchik [2.2K]

Answer:

D

Step-by-step explanation:

If we isolate the variable in each given compound inequality, we can quickly realize that D is correct.

16\geq 3x+4>1\\12\geq 3x>-3\\4\geq x>-1

x is less than or equal to four (solid point on 4 with line going left), but greater than -1 (open point going right).

Signs with 'or equal to' have solid points, and signs without are not solid.

I hope this helps!

8 0
3 years ago
EASY --------What is cos K?<br>​
Mamont248 [21]

Answer: C 7/25

Step-by-step explanation:

4 0
3 years ago
Need to find Value of x
Pie
180 = 3x + 5x + 2x +5
180 = 10x + 5
175 = 10x
x = 17.5

180 is how many degrees in a triangle
4 0
3 years ago
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