3 years ago

If you roll 2 dice what is the probability that you would roll a sum of 12

Mathematics

1 answer:

Drupady [299]3 years ago

5 0

The probability is 1/12, or 8.33333333333% (the threes go on forever)

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A baby was born 3/4 of a month early. At birth its weight was 7/8 kilograms, which is 9/10 kilograms less than the average weigh

BlackZzzverrR [31]

Answer:

The average weight of a newborn otter is 1.775 kg.

Step-by-step explanation:

We are given the following in the question:

Weight of newborn otter =

$\dfrac{7}{8}\text{ kg}$

Let x lg be the average weight of a newborn otter.

Thus, we are given the relation:

$\dfrac{7}{8} = x - \dfrac{9}{10}\\\\x = \dfrac{7}{8} + \dfrac{9}{10}\\\\x = \dfrac{35+36}{40} = \dfrac{71}{40}\\\\x = 1.775\text{ kg}$

Thus, the average weight of a newborn otter is 1.775 kg.

7 0

3 years ago

Solve this system of equations.<br>y=2x-5<br>y=-2x+3

Alinara [238K]

Answer:

x = 2

y = -1

Step-by-step explanation:

y = 2x - 5

y = -2x + 3

2x - 5 = -2x + 3

4x = 8

x = 2

y = 2(2) - 5

y = -1

5 0

3 years ago

You need a 30% alcohol solution. On hand, you have a 780 mL of a 15% alcohol mixture. You also have 90%

ycow [4]

Answer:

195 mL of the 90% solution

Step-by-step explanation:

Let the number of mL of 90% mixture = x

Hence, our equation is

780mL × 15% + x mL × 90% = (780mL + x) 30%

117 + 0.9x = 234 + 0.3x

Collect like terms

0.9x - 0.3x = 234 - 117

0.6x = 117

x = 117/0.6

x = 195 mL

Therefore, You will need 195 mL of the 90% solution

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3 years ago

Simplify 32q2r2/4q3r

faltersainse [42]

Answer: 16q5r2

Step-by-step explanation:

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3 years ago

a train track runs parallel to a road represented by the equation y=4x+17.A train station along the track is located at the poin

TiliK225 [7]

Y -(-1) = 4(x - 6) <=> y = 4x -27;

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4 years ago