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Liono4ka [1.6K]
3 years ago
8

3(2y-4) - 2 ) = 0.4 (1+y)

Mathematics
1 answer:
Lelu [443]3 years ago
3 0
6y-12-2=0.4+0.4y
6y-10-0.4=0.4-0.4+0.4y
6y-6y-9.6=0.4y-6y
(-9.6=-5.6y)/5.6
1.7143=y
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Membership to a music club costs $70. Members pay $5 per music lesson and nonmembers pay $10 per
Snezhnost [94]

Answer:

a member would have to take 14 lessons versus a non-member which would only have to take 7

3 0
3 years ago
a seed company has a test plot in which it is testing the germination of a hybrid seed, They plant 50 rows of 40 seeds per row.
ziro4ka [17]

Answer:

Mean =\sum x P(x) = 36.86

Standard deviation =\sum x^2P(X)=1360.9

Step-by-step explanation:

x          P(x) x \times P(x)       x^2 \times  P(x)

33         0.02     0.66          21.78

34          0.06     2.04         69.36

35           0.1      3.5        122.5

36           0.2      7.2         259.2

37           0.24     8.88        328.56

38           0.26     9.88        375.44

39            0.1     3.9         152.1

40            0.02     0.8         32

             1        36.86      1360.9

We are supposed to find mean and standard deviation

Mean =\sum x P(x) = 36.86

Standard deviation =\sum x^2P(X)=1360.9

7 0
3 years ago
Please help I don’t understand
madam [21]
I don’t get it either
3 0
2 years ago
X=7; 4x + 8/2=??? Explain
AlladinOne [14]

Answer:

Step-by-step explanation:

4(7)+8/2

28+4

=32

7 0
3 years ago
Simplify the expression:<br> 3p+–p
Aleks04 [339]

Answer:

3p-p

Step-by-step explanation:

I always think of the negative sign out ruling the positive sign so let's do that for the -p part.

3p-p is what it becomes

Your question says simplify but just in case you want the answer here it is:

-p is also the same as -1p

So therefore we have

3p-1p

And we subtract the coefficients and keep the variable

2p would be your answer but once again I don't know if you wanted that so just to be sure I put 3p-p as my "answer".

5 0
2 years ago
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