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stepladder [879]
4 years ago
7

Riley solved and equation as shown in the table

Mathematics
1 answer:
Mama L [17]4 years ago
6 0
She made the mistake in step 4

She should have divided by -2 not just 2 alone
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-3×+7y=5<br> -8×+14y=-10<br> By elimination
dimaraw [331]
-3x+7y=5 (x2) -> -6x+14y=10

-6x+14y=10
-8x+14y=-10
——————— -
2x=20
x=20/20
x=1

Susbstitute x=1,

-8x+14y=-10
-8(1)+14y=-10
-8+14y=-10
14y=-10+8
14y=-2
y=-2/14
y=-1/7

I hope it helps
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3 years ago
SOMEONE PLEASE HELP ME.
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Probability is like 50% or 1/2 like If you flip a coin the probability is 1/2,
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3 years ago
(PLEASE HELP I WILL GIVE U A BRAINLY)Jonathan had a take out dinner that costed $22.50. He wanted to leave a 15% tip. What is th
timama [110]

Answer:

25.875

Step-by-step explanation:

4 0
3 years ago
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Given that log 2 = 0.3010 and log 3 = 0.4771 , how can we find log 6 ? ​
bearhunter [10]

Answer:

\sf \log_{10}6=0.7781

Step-by-step explanation:

<u>Given</u>:

\sf \log_{10} 2 = 0.3010

\sf \log_{10} 3 = 0.4771

To find log₁₀ 6, first rewrite 6 as 3 · 2:

\sf \implies \log_{10}6=\log_{10}(3 \cdot 2)

\textsf{Apply the log product law}: \quad \log_axy=\log_ax + \log_ay

\implies \sf \log_{10}(3 \cdot 2)=\log_{10}3+\log_{10}2

Substituting the given values for log₁₀ 3 and log₁₀ 2:

\begin{aligned} \sf \implies \log_{10}3+\log_{10}2 & = \sf 0.4771+0.3010\\ & = \sf 0.7781 \end{aligned}

Therefore:

\sf \log_{10}6=0.7781

Learn more about logarithm laws here:

brainly.com/question/27953288

brainly.com/question/27963321

5 0
2 years ago
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What is the area of the top of a table that is 8 feet by 12 feet?
laila [671]

Answer:

96

Step-by-step explanation:

use the formula l*w

8*12

96

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3 years ago
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