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larisa86 [58]
3 years ago
15

Is (2,10) a solution of the equation y=9x

Mathematics
1 answer:
elena-s [515]3 years ago
6 0

Answer: No

Step-by-step explanation: If you plug in 10 for y and 2 for x, the equation becomes 10=9(2), which is 10=18.

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Solve & Justify: 3(5x + 2) = 2(3x - 6)
Zanzabum

Answer:

-2

Step-by-step explanation:

15x+6=6x-12

15x-6x=-12-6

9x=-18

x=-2

7 0
2 years ago
Two carpenters are building a fence after 5 minutes,one carpenter is finished 4/7 of the way an the other is finished 1/8 of the
torisob [31]

The first carpenter is 0.4464 of the way is ahead of the second carpenter

<u>Solution:</u>

Given, Two carpenters are building a fence  

After 5 minutes, one carpenter is finished 4/7 of the way

Second carpenter finished 1/8 of the way

Now, let us find the work done by each carpenter

\begin{array}{l}{\text { For } 1^{\text {st }} \text { carpenter }=\frac{4}{7}=0.5714 \text { approximately. }} \\\\ {\text { For } 2^{\text {nd }} \text { carpenter }=\frac{1}{8}=0.125}\end{array}

Then, extra work done by first carpenter over second carpenter = work done by first carpenter – work done by second carpenter

= 0.5714 – 0.125 = 0.4464

Hence, the 1st carpenter is 0.4464 of the way is ahead of the 2nd carpenter

6 0
3 years ago
What is the value of b if (3 + i) and (3 - i) are complex roots of 2x² + bx + 20 = 0?
Bogdan [553]
A is the answer Bc I did this before and my teacher said I did an excellent job!
3 0
2 years ago
Translate the sentence into an equation.
maria [59]

Answer:

7 + (B÷5) = 3

Step-by-step explanation:

7 0
1 year ago
Help! What does 2 divided by 9 tenths
Serga [27]
I got 0.45

Good luck!
6 0
3 years ago
Read 2 more answers
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