1 year ago

Image explains everything worth alot of points! Thanks

Mathematics

1 answer:

asambeis [7]1 year ago

7 0

Answer:

Step-by-step explanation:

55/5 = 11

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Andrew took a math test with 40 questions. If he scored an 85%, how many questions did he get correct?

puteri [66]

Andrew answered 34 questions correctly.
I got the answer by divided the 85% by 100% (100% because it's the total percentage.) I received 0.85 when dividing that. Then, I took the 0.85 and divided it by the total of 40 questions, and that gave me the answer of 34.

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2 years ago

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AlexFokin [52]

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2 years ago

Twenty less than 8 times a number is the same as 15 more than the number

anygoal [31]

$x-\ number\\\\
8x-20=15+x\ \ \ | subtract\ x\\\\
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2 years ago

List the first 10 multiples for each number 3,4,7

notka56 [123]

Answer:

Step-by-step explanation:

3- 3, 6, 9, 12, 15, 18, 21, 24, 27, 30

4- 4, 8, 12, 16, 20, 24, 28, 32, 36, 40

7- 7, 14, 21, 28, 35, 42, 49, 56, 63, 70

HOPE IT HELPED

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2 years ago

Read 2 more answers

Please help me with this!<br><br><br> show that {1,2} ⊆ {x|x^4 - x^3 - x^2 - 5x + 6 = 0}

Llana [10]

The set $\{x\mid x^4-x^3-x^2-6x+6=0\}$ is the set of all values of $x$ that are solutions to the given equation. So all you need to do is check whether $x=1$ and $x=2$ satisfy the equation.

$x=1\implies 1^4-1^3-1^2-5+6=0$

$x=2\implies2^4-2^3-2^2-10+6=0$

The equation holds, so both 1 and 2 are solutions, and hence $\{1,2\}$ is a subset of the solutions.

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2 years ago

Image explains everything worth alot of points! Thanks​

Image explains everything worth alot of points! Thanks