2 years ago

Prime numbers up to 30

Mathematics

2 answers:

Mrrafil [7]2 years ago

6 0

Answer:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29

Step-by-step explanation:

Google

ohaa [14]2 years ago

3 0

Answer:

2, 3, 5, 7, 11, 13, 17, 19, 23 and 29!

Step-by-step explanation:

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How do i solve 7x^{2} +11y^{2} =40

svetoff [14.1K]

Answer:

Step-by-step explanation:

There is no solution as you have two variables and only one equation. The best you can do is solve for one variable as a function of the other.

$7x^2+11y^2=40\\ \\ 11y^2=40-7x^2\\ \\ y^2=\frac{40-7x^2}{11}\\ \\ y=\sqrt{\frac{40-7x^2}{11}}$

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Rebekah answered 42 of the 60 questions correctly on a test

aleksley [76]

Answer:

70%

Step-by-step explanation:

42 divided by 60 times 100

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Joel sells ice cream cones at the county fair. He has to rent the equipment for $28 and spent $.33 on a gradients for each accou

spin [16.1K]

Rental - $28
Ingredients- $33
Total $61.00

At $1.30 each you can guesstimate he'd have to sell almost 60 cones to break even.
OR
You can divide 1.30 into $61.00 for about 47 cones to break even. (I rounded up)

To make a profit he would either need to sell double that amount or he could raise the cost of his cone to $2.00 & make profit sooner.

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2 years ago

Katy spent $2834 on a washing machine and a dryer. The dryer cost $875 less than the washing machine. How much did the dryer cos

Tasya [4]

Answer:

the answer is 1959

Step-by-step explanation:

2834-875=1959

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Henry can mow an acre in 2 hours. Mitzi can mow an acre in 4 hours. How long would it take them to mow 30 acres?

shusha [124]

Answer:

Step-by-step explanation:

Henry will take 2/3 or 20 acres and Mitzi will take 1/3 or 10 acres. Leading to it taking 40 hours.

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