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Fynjy0 [20]
3 years ago
7

PLZ HELP !!

Mathematics
1 answer:
posledela3 years ago
3 0
I’m pretty sure there’s not supposed to be a second parenthesis after the - 6
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What is the solution of the system? Use substitution.
nekit [7.7K]
Substituting y=6x+2 into equation 3y - 18x =12 looks like:

3(6x + 2) - 18x = 12
18x + 6 - 18x = 12  distributive property left side
6 = 12  simplifying the left side

We now see a contradiction:   6 does not equal 12  What this tells us is that there is no solutions to this equation.  So choice 'C' ...
8 0
3 years ago
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Willian and Amy are stuffing envelope for a charity today, William stuff a total of 70 envelope. This is 10 more than twice the
LiRa [457]

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30

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because it is 10 major then we remove those ten and it gives us 60 that between 2 is 30 :))

7 0
3 years ago
Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 90 miles per
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6 0
4 years ago
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Could someone pls help me out ???
professor190 [17]

Answer:

Option C.

Step-by-step explanation:

\sf\:x^{2}-3x+7=0

Use the biquadratic formula.

\sf\:\x=\frac{-\left(-3\right)(+/-)\sqrt{\left(-3\right)^{2}-4\times 7}}{2}

\sf\:x=\frac{-\left(-3\right)(+/-)\sqrt{9-4\times 7}}{2}

\sf\:x=\frac{-\left(-3\right)(+/-)\sqrt{9-28}}{2}

\sf\:x=\frac{-\left(-3\right)(+/-)\sqrt{-19}}{2}

\sf\:x=\frac{3(+/-)\sqrt{19}}{2}

Positive sign:

\boxed{\sf\:x=\frac{3+\sqrt{19}}{2}}

Negative sign:

\boxed{\sf\:x=\frac{3-\sqrt{19}}{2}}

Hope it helps ⚜

5 0
2 years ago
An item was originally priced at $6, but you used a coupon and bought it for $4.80. What percent was the coupon you used?
Luden [163]

Answer:

You used 80% I think :)

Step-by-step explanation:

8 0
3 years ago
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