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mel-nik [20]
4 years ago
6

jamie mowed 7 lawns. He earned $10, 15, 12, 15, 8, and 15 for six lawns. how much did he earm the seventh time if the mean is $1

2?
Mathematics
2 answers:
Advocard [28]4 years ago
6 0
9
hope i helped pls thank me
Tanzania [10]4 years ago
3 0
(10 + 15 + 12 + 15 + 8 + 15 + x) / 7 = 12

(75 + x) / 7 = 12

75 + x = 84

x = 9

He earned $9 the 7th time.
You might be interested in
Please help me. Thank you very much.
Alika [10]
Hello!

Your answer would be C.

Multiply 3 x 8 x 5 and 2 x 5 x 6 and add both products together and you get 120 cm3.

Hope it helps you :)
5 0
4 years ago
Sonya’s average so far is 84 for 3 math tests. What must she get on the fourth test to have an average of 88
ioda

Answer:

she will need to get a 100 on the fourth test

Step-by-step explanation:

(252+x)/4 = 88

252+x = 352

x = 100

7 0
3 years ago
Write the following polar equation in Cartesian coordinates:
maks197457 [2]
Remember that transformation between Cartesian and polar system are:
x=r*cos(α)
y=r*sin(α)
From this we can conclude that:
r=√(x^2 + y^2)

Using trigonometry transformations we can write:
r=sin(2α) = 2sin(α)cos(α)
Now we can multiply both sides with r^2:
r^3 = 2(r*sin(α))*(r*cos(α))

Now using some replacements we can write:
(x^2 + y^2)^(3/2) = 2*x*y
5 0
3 years ago
What is the length of AA' , rounded to the nearest hundredth? Type a numerical answer is the space provided. Do not type spaces
inna [77]
Coordinate of A are (0,0)
Coordinates of A' are (5,2)

We can find the distance from A to A' using the distance formula:

AA'= \sqrt{(5-0)^{2}+ (2-0)^{2}  } \\  \\ 
AA'= \sqrt{25+4} \\  \\ 
AA'= \sqrt{29} \\  \\ 
AA'=5.39

Thus, rounded to nearest hundredth, AA' is equal to 5.39
3 0
3 years ago
Which of the following us the graph of you=5
JulijaS [17]
Y = 5 

i think that what you meant 

so the point will be (0,5) and will be a horizontal line at y=5

hope that helps

5 0
3 years ago
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