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mixer [17]
3 years ago
7

Danny made a mistake in the following problem.

Mathematics
1 answer:
mixas84 [53]3 years ago
7 0
Line 3
since he added which is against the order of opreation rule he was supposed to multiply first then add
again what he was supposed to do is
Line 2:21+5+6(2)
Line 3:21+5+12
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Write the number in expanded form 68,020
allochka39001 [22]

Standard Form:

68,020

Expanded Notation Form:

 68,020 =

 60,000  

+ 8,000  

+ 0  

+ 20  

+ 0  

Expanded Factors Form:

   68,020 =

 6 × 10,000  

+ 8 × 1,000  

+ 0 × 100  

+ 2 × 10  

+ 0 × 1  

Expanded Exponential Form:

 68,020 =

       6 × 10^4

+ 8 × 10^3

+ 0 × 10^2

+ 2 × 10^1

+ 0 × 10^0

Word Form:

68,020 =

sixty-eight thousand twenty

4 0
2 years ago
Game Stop is selling a video game for 15% off $35 . What is the sale price ?
Murrr4er [49]
Answer: $29.75

Explanation: 1-0.15 = 0.85,
35(0.85) = 29.75
4 0
3 years ago
Read 2 more answers
Attachment Mathswatchhhh!!!!!!!!! answer only no explanation
ehidna [41]

Answer:

y= -7/-4/-1/2/5/8

Step-by-step explanation:

3 0
3 years ago
What is the step for 6b+8=-4
VMariaS [17]

Answer

Step-by-step explanation:

6b+8=-4

subtract 8 from both sides

6b=-4-8

solve -4-8

and get, 6b=-12

divid by 6

b=-2

7 0
2 years ago
The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a me
faust18 [17]

Answer:

Almost 2.5% of the students spent more than $275 in a semester.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 235

Standard deviation = 20

According to the standard deviation rule, almost 2.5% of the students spent more than what amount of money on textbooks in a semester?

95% of the measures are within 2 standard deviation of the mean. The other 5% are more than 2 standard deviations of the mean. Since the normal distribution is symmetric, 2.5% of those are below two standard deviations of the mean and 2.5% are more than two standard deviations above the mean.

235 + 2*20 = $275

Almost 2.5% of the students spent more than $275 in a semester.

4 0
3 years ago
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