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Evgen [1.6K]
3 years ago
11

Can someone help me with this? I need the answers or I will fail my math because of homework........

Mathematics
2 answers:
Goshia [24]3 years ago
4 0
1) 10 footing dogs
2)900 black and white copies
3A) the ratio is- 1:75
3B)150 miles

Katarina [22]3 years ago
3 0
54 boo . Divide 189 by 7 then multiply by 2 which is 54
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Need help with this!!!!!!!!
zzz [600]
The linear combination method is the same as the elimination method.  Let's multiply the second equation by -2 so the x terms cancel each other out. When we do that we get a system of 2x-3y=13 and -2x-4y=8.  The x-terms cancel each other out giving us -7y=21 and y = -3.  Now sub -3 into one of the equations to solve for x.  x+2(-3)=-4, and x - 6 = -4.  x = 2.  So the solution for our system is (2, -3)
4 0
3 years ago
Help meee pleasee:)))
Crazy boy [7]

7+z / 2

z = 10

 replace the value of z

7 +10 /2

 use order of operations ( division comes before addition)

7+5 = 12

3 0
3 years ago
Read 2 more answers
Assume that in a statistics class the probability of receiving a grade of A equals .30 and the probability of receiving a grade
Tom [10]

Answer:

Answer D is correct

6 0
3 years ago
75% of a number is less than 50% of a number. What is the number?
Stella [2.4K]
1.2% is the answer i hope it helpt u
3 0
3 years ago
Simplify. y^-3 pls help me i need this very bad
prisoha [69]
My understanding is that when the power is a negative number, move it to the denominator and change it to positive. 
In this case, the base is y, the power is -3
y^(-3)=1/(y^3)
7 0
3 years ago
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