What is the sume of the first 5 prime numbers? -18

-11

-17

-28

Answers

Answer 1
Answer: Prime numbers are all positive, so there are no single prime or group of primes that add to a negative number. The sum of the first five primes is +28.

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When preparing the cheese for their pizzas, the cooks at Brian's pizza restaurant mix 1 kilogram of Parmesan cheese and 9 kilograms of mozzarella. At Jeff's pizza restaurant, the cooks mix 2 kilograms of Parmesan cheese and 16 kilograms of mozzarella. Which restaurant uses a lower ratio of Parmesan to mozzarella?Brian's restaurant Jeff's restaurant neither; the ratios are equivalent

Can the sum of two mixed numbers be equal to 2? explain why or why not.

Answers

no it cannot because a mixed #  for example would look like this 2 3/5 it will need a whole number and a fraction
The reason why I say NO is because you can only have 1 mixed number in 2 and that would be 1 1/2 (1 1/2 + 1/2 = 2) And when you try again your numbers will be 1 and 1. So NO, you cannot have to mixed numbers in the number 2

0.33 in a fraction simplest

Answers

That's 33/100 and can't be simplified. If you had said that the 3s keep going and never end, then it would have been 1/3. But as written, it's just 33/100.
.33 *  (100)/(100) =  (33)/(100)

and that's the most you can simplify it.

A single , standard number cube is tossed. What is the probability of getting a 4 or 5 ? 1. 1
2. 1 / 5
3. 1 / 3
4. 1 / 6

Answers

If a barrel is 1/5 full and holds 16 litres how many litres will it hold when 1/2 full

Answers

16*5 = 80, that's how many litres when it's full
80/2 = 40, that's how many litres when it's half full
It will hold 40 litres
You have to do 16 x 5 ( denominator ) which is 80. 80 is when it is full.
SO... you have to half that giving you 40. The answer is 40

Solve: āˆ’5(x + 6) = 15

Answers

Answer:

-5x-30 = 15

or, -5x = 15+30

or, -5x = 45

or, x = 45/-5

therefore : x = -9

Answer:

Distribute -   -5x - 30 = 15

Simplify like terms = +30 on both sides

                               = -5x = 45

Solve -5x = 45

x = -9

What's 6 1/6 + 4 9/15

Answers

6 1/6=37/6 and 4 9/15=69/15, 37*15+69*6/6*15=555+414/90=969/90. 960/90 in simplest form is 323/30, and 323/30 as a mixed number is 10 23/30, Therefore, 6 1/6 + 4 9/15 = 10 23/30