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Serga [27]
2 years ago
10

Jackie has 1/3 of a Hershey bar.steven has 4/12 of a Hershey bar.How much do they have together?

Mathematics
2 answers:
Alisiya [41]2 years ago
8 0
Since Jackie has 1/3 and Steven has 4/12 we add them together


4/12+1/3= 2/3

Together they have 2/3 of a Hershey Bar
anastassius [24]2 years ago
3 0

Answer: 2/3

Step-by-step explanation: To find how much of the candy bar they each have, we will have to add the fractions. To add unlike fractions such as 1/3 and 4/12, we first need to find a common denominator. The common denominator of 3 and 12 is simply the least common multiple of 3 and 12 which is 12. To get 12 in the denominator of 1/3, we multiply the numerator and denominator by 4 to get 4/12. Notice that our second fraction already has 12 in the denominator so we can now add these fractions.

\frac{4}{12} + \frac{4}{12} = \frac{8}{12}.

Notice that 8/12 can be reduced by dividing both the numerator and denominator by 4.

8 ÷ 4 = 2

12 ÷ 4 = 3

Therefore, Jackie and Steven have 2/3 of a Hershey bar.

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If students’ scores were normally distributed and the mean was 200 with a standard deviation of 40, then what is the probability
Sonja [21]

Answer:

  84%

Step-by-step explanation:

The empirical rule tells you that 68% of the standard normal distribution is within 1 standard deviation of the mean. The distribution is symmetrical, so the amount in the lower tail is (1 -68%)/2 = 16%.

Since the number you're interested in, 240, is one standard deviation above the mean (200 +40), the percentage of interest is the sum of the area of the central part of the distribution along with the lower tail:

  68% + 16% = 84%.

4 0
2 years ago
4 times as much money as $5
lesantik [10]
The answer is 4x5=20
4 0
3 years ago
Read 2 more answers
Which of these expressions is equivalent to -2 (x - 5)?
valkas [14]

Answer:

C. -2x+10

Step-by-step explanation:

When you multiply a negative with a negative, it becomes a positive.

6 0
3 years ago
Read 2 more answers
12x - 2y = -1<br>+ 4x + 6y= -4<br>​
svp [43]

Answer:

x = -7/40 , y = -11/20

Step-by-step explanation:

Solve the following system:

{12 x - 2 y = -1 | (equation 1)

4 x + 6 y = -4 | (equation 2)

Subtract 1/3 × (equation 1) from equation 2:

{12 x - 2 y = -1 | (equation 1)

0 x+(20 y)/3 = (-11)/3 | (equation 2)

Multiply equation 2 by 3:

{12 x - 2 y = -1 | (equation 1)

0 x+20 y = -11 | (equation 2)

Divide equation 2 by 20:

{12 x - 2 y = -1 | (equation 1)

0 x+y = (-11)/20 | (equation 2)

Add 2 × (equation 2) to equation 1:

{12 x+0 y = (-21)/10 | (equation 1)

0 x+y = -11/20 | (equation 2)

Divide equation 1 by 12:

{x+0 y = (-7)/40 | (equation 1)

0 x+y = -11/20 | (equation 2)

Collect results:

Answer:  {x = -7/40 , y = -11/20

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3 years ago
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The picture is blurry.
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