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scoundrel [369]
3 years ago
10

Y=6x Y=5x+7 Substitution method

Mathematics
2 answers:
Sonja [21]3 years ago
8 0
\left \{ {{y=6x} \atop {y=5x+7}} \right. \\\\Substitution\ method\\\\
6x=5x+7\ \ \ | subtract\ 5x\\\\
x=7\\
y=6*7=42
Wewaii [24]3 years ago
5 0
\left\{\begin{array}{ccc}y=6x\\y=5x+7\end{array}\right\\\\subtitute\ y=6x\ to\ the\ second\ equation\\\\6x=5x+7\ \ \ \ \ |subtract\ 5x\ fron\ both\ sides\\\boxed{x=7}\\\\subtitute\ value\ of \x=7\ to\ the\ equation\ y=6x:\\\\y=6\cdot7\\\boxed{y=42}\\\\Answer:\\  \left\{\begin{array}{ccc}x=7\\y=42\end{array}\right
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Greg made pudding every weekend. The more times he made pudding, the more practice he gained. The time he took to make the same
VashaNatasha [74]


After Greg makes the pudding 1 time, it takes him f(1)=2(0.8) ^{1}=1.6 hours to make it.

After Greg makes the pudding 2 times, it takes him f(2)=2(0.8) ^{2}=1.28 hours to make it

After Greg makes the pudding 2 times, it takes him f(3)=2(0.8) ^{3}=1.024 hours to make it

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3 years ago
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2 years ago
A personal computer is bought for $2860. A down payment of $520 is made. The remainder of the cost is paid in 20 equal payments.
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Step-by-step explanation:

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3 years ago
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Write the general polynomial p(x) if its only zeros are 1 4 and -3 with multiplicites 3 2 and 1 respectively what is the degree
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3*2*1 = 6

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