2 years ago

Find the probability of not rolling prime numbers on both dice

1 answer:

6 0

Here’s the prime numbers on one dice: 2 3 5, so 3/6. If you have two die then your answer is 6/12. You have a 50 percent chance of not rolling prime numbers on both.

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Misty wishes to obtain 85 ounces of a 40% acid solution by combining a 72% acid solution with a 25% acid solution. How much of e

Y_Kistochka [10]

13.15 ounces of 72% acid and 71.85 ounces of 25% acid are needed

Step-by-step explanation:

Total mass of acid required= 85 ounces

Let the mass of 72% acid be 'a'

Let the mass of 25% acid be 'b'

a + b = 85

b = 85-a

85(40/100) = a(72/100) + b(25/100)

85(2/5) = a(72/100) +(85- a) (25/100)

34 = (72a/100) + (2125/100) - (25a/100)

34 - (2125/100) = (72a + 25a) /100

(3400-2125)/100 = 97a /100

97a = 1275

a = 13.15 ounces

b = 85 - 13.14

b = 71.85 ounces

13.15 ounces of 72% acid and 71.85 ounces of 25% acid are needed

4 0

3 years ago

tinas salsa class membership which s $15 is deducted automatically from her bank account every month. which expression show the

mihalych1998 [28]

Y=-15x(12) I believe is the answer.

8 0

3 years ago

8y - 3y Combining like terms

Alchen [17]

Answer:

Step-by-step explanation:

subtract 8 from 3

8 0

3 years ago

Read 2 more answers

Evaluate x/y when x=32 and y=4.

lbvjy [14]

Answer:

x = 32

y = 4

x/y = 32/4 = 8

Hope it helps!

4 0

2 years ago

Read 2 more answers

Find the result when 90 is decreased by 35%. 58.5 75.6 60.5 78.5

avanturin [10]

In this question, it's asking you to find the number when 90 is subtracted by 35%. So, you find 35% of 90 which is 31.5 and you minus it from 90 = 58.5.

> 90 x 35% = 31.5
> 90 - 31.5 = 58.5

3 0

3 years ago