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sleet_krkn [62]
3 years ago
11

Lake superior is the largest of the great lakes. it covers a surface area of about 30000 square miles. how can one show the esti

mated area of Lake superior as a whole number multiplied by a power of ten.
what are you asked to find?
how can you use a pattern to find the answer
Mathematics
1 answer:
Natali [406]3 years ago
3 0
3x10x10x10x10=3x10^{4}
you were asked to find how many powers of ten were there then multiply it by three.(like the one one top)
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4 years ago
7) Solve the following system of equations below algebraically using substitution.
Pani-rosa [81]

Answer:

x = 3.25

y =4.75

Step-by-step explanation:

In order to Solve the following system of equations below algebraically using substitution method we say that;

let;

8x - 4y = 7 ..................... equation 1

x + y = 8.......................... equation 2

from equation2

x + y = 8.......................... equation 2

x = 8 - y.............................. equation 3

substitute for x in equation 1

8x - 4y = 7 ..................... equation 1

8(8-y) - 4y = 7

64-8y-4y=7

64-12y=7

collect the like terms

64-7 = 12y

57= 12y

divide both sides by the coefficient of y which is 12

57/12 = 12y/12

4.75 = y

y =4.75

put y = 4.75 in equation 3

x = 8 - y.............................. equation 3

x = 8 -4.75

x = 3.25

to check if your answer is correct, put the value of x and y in either equation 1 or 2

from equation 2

x + y = 8.......................... equation 2

3.25 + 4.75 =8

8=8.................... proved

8 0
4 years ago
What is the equation of the line that passes through the point (−7,2) and has a slope of −1
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The equation in slope intercept form is y=-x-5
7 0
4 years ago
lara has 90 mild peppers and 36 hot peppers. she is putting them into baskets so that each basket has the same number of mild pe
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Answer:

Up to 36

Step-by-step explanation:

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8 0
3 years ago
Need help! What’s the answer to number two??
Alexxandr [17]

Answer:

V = 5(12)(7) which is F.

Step-by-step explanation:

V = LWH

L = 12

W = 5

H = 7

12 * 5 * 7

8 0
3 years ago
Read 2 more answers
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