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Olenka [21]
2 years ago
13

Please answer you will get 10 points.

Mathematics
2 answers:
gtnhenbr [62]2 years ago
7 0
The answer will be 126 umm
Romashka-Z-Leto [24]2 years ago
3 0

Answer:

your answer will be 126

Step-by-step explanation:

8x+78=2x+114

8x-2x=114-78

6x=36

x=36/6=6

<B=2(6)+114

=<u> </u><u>126</u>

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3 years ago
1 n +5 - 1<br> n2 + n n2 +n<br> n-6<br> n +1
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A store is having a sale on chocolate chips and walnuts. For 3 pounds of chocolate chips and 5 pounds of walnuts, the total cost
umka21 [38]

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\bf \stackrel{\textit{3 lbs of "c"}}{3c}+\stackrel{\textit{5 lbs of "w"}}{5w}~~=~~\stackrel{\textit{costs}}{15} \\\\\\ \stackrel{\textit{12 lbs of "c"}}{12c}+\stackrel{\textit{2 lbs of "w"}}{2w}~~=~~\stackrel{\textit{costs}}{33} \end{cases}\qquad \impliedby \textit{let's use elimination} \\\\[-0.35em] ~\dotfill\\\\ \begin{array}{llccccccl} 3c+5w=15&\times (-4)\implies &-12c&+&-20w&=&-60\\ 12c+2w=33&&12c&+&2w&=&33\\ \cline{3-7}\\ &&0&&-18w&=&-27 \end{array}

\bf -18w=-27\implies w=\cfrac{-27}{-18}\implies \blacktriangleright w=\cfrac{3}{2} \blacktriangleleft \\\\\\ \stackrel{\textit{substituting on the 1st equation}}{3c+5\left(\cfrac{3}{2} \right)=15}\implies 3c+\cfrac{15}{2}=15 \implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{2}}{2\left( 3c+\cfrac{15}{2} \right)=2(15)} \\\\\\ 6c+15=30\implies 6c=15\implies c=\cfrac{15}{6}\implies \blacktriangleright c=\cfrac{5}{2} \blacktriangleleft

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3 years ago
Blank plus blank times blank equals nine-teen
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The answer is 5+4×2=19
7 0
3 years ago
Read 2 more answers
I don’t understand this!! Someone help!!
Mkey [24]
Ok question is there numbers with this
7 0
3 years ago
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