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navik [9.2K]
3 years ago
11

Math the equation to the solution type​

Mathematics
1 answer:
Margarita [4]3 years ago
6 0

Answer:

Step-by-step explanation:

1. 6x + 10 = 6x - 8

   10≠-8

no solution

2. 6x + 8 = 2x - 6

    4x + 8 = -6

     4x = -14

     x = -14/4= -7/2 one solution

3. 9x - 27 = 9x - 27

    0 = 0 All real no. infinitely many solution

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Please help with this question
user100 [1]

Answer:

  • (B) $58.48

Step-by-step explanation:

<u>Total cost of nuts, including the discount and the tax:</u>

  • (0.1 + 0.13 + 0.26)*20*[(100- 30)/100]*[(100 + 5.25)/100] = 7.22 (rounded)

<u>Total cost of bolts, including the discount and the tax:</u>

  • (0.45 + 0.52 + 0.63+0.93)*35*[(100- 45)/100]*[(100 + 5.25)/100] = 51.26 (rounded)

<u>Total amount Carl paid:</u>

  • 7.22 + 51.26 = 58.48

Correct choice is B

6 0
2 years ago
The expression n2 + n represents the total number of blocks used in the nth figure of a pattern. Use the equation n2 + n = 56 to
Brrunno [24]

We have to solve this quadratic equation n^{2}+n=56 for n to get <em>which figure has 56 blocks</em>.

n^{2}+n=56\\n^{2}+n-56=0

For middle term factorization, we need <em>two numbers that multiplied gives us -56 and added gives us 1 (coefficient of n).</em>

<em>Such two numbers are </em><em>8</em><em> and </em><em>-7</em><em>. We can now write,</em>

<em>n^{2}+n-56=0\\(n+8)(n-7)=0\\n=-8, 7</em>

<u><em>"There is no negative figure number possible, so we disregard -8"</em></u>

Our answer is 7.


ANSWER: The 7th figure has 56 blocks.


3 0
3 years ago
Read 2 more answers
Please Help thank you
CaHeK987 [17]

Answer:

Missing Number: 70,000,000

3 0
3 years ago
Read 2 more answers
Solve the inequality for w. w-7&lt;21
Radda [10]
Add 7 to each side of the inequality.

w < 28.
8 0
3 years ago
5 more than d.<br> (Need answer ASAP)
densk [106]

Answer: 5+d

Step-by-step explanation:

More means adding and it doesn't matter which order you put it in in adding.

8 0
2 years ago
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