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tangare [24]
2 years ago
15

a teacher guessed 30 students would ask for help. However, there were actually 35 students who came to get help. What was her pe

rcent of error? Round to the nearest whole percent.
Mathematics
1 answer:
almond37 [142]2 years ago
3 0

Answer:13%

Step-by-step explanation:

Lets call the Teacher Mrs.Lukens and we put the number into a calculator and subtract 35-13% you have it but as it was a guess you will never know.

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Which expression is equivalent to 3 square 32x8y10?
Helen [10]

Answer:4

Step-by-step explanation:

32/8=4

5 0
3 years ago
Plz help me please please please help me I need your help on begging you please I need your help plz help me
Ksju [112]

Answer:

D

Step-by-step explanation:

Area of the square ( 5.1x5.1 ) added to

Area of one triangle ( 0.5x5.1x5.95 ) times 4 (because there are four triangles)

4 0
3 years ago
A checker board has 64 squares and 32 of them are black.
tankabanditka [31]
50% or 32/64 because 32 is half of 64
3 0
3 years ago
#6) Beth saved a total of $30 per month for her first car. Beth saved
babymother [125]

Answer:

Domain = 0≤m≤20 for mEZ+

Range = $100≤A≤$700 for all values of m

Step-by-step explanation:

Initial amount in the account = $100

Amount saved by beth monthly = $30

Amount in the bank after X month = $100+$30X where X is the number of months beth intend to save up to.

The amount in her bank in her first month = $100+$30(1)

= $100+$30

= $130

Amount saved in the second month will be when X = 2

= $100+$30(2)

= $100+$60

= $160

The amount in the bank will keep increasing by $30 monthly until the 20month.

The amount he will have in her bank in the 20th month will be at when X = 20

= $100+30X

= $100+30(20)

= $100+$600

= $700

This means that her money will be $130 in the first month and will keep increasing until it reaches $700 in the 20th month.

The DOMAIN will be the interval of the time she used in saving. Since she saved for 20months, the domain will be expressed as 0≤m≤20 for mEZ+ where m is the number of month she uses to save.

The Range will represent the amount she saved within the specified time and will be expressed as $100≤A≤$700 for all values of m.

Where $100 is the amount in the account initially and $700 is the amount in the account after 20 months.

3 0
3 years ago
What is the area of a cross section that is parallel to face ABCD ?
Hunter-Best [27]
To solve this problem you must apply the proccedure shown below:
 1. The problem asks for the area of a cross section that is parallel <span>to face ABCD. As is parallel to that face, you have can calculate its area as following:
 A=12 cm x 6 cm
 2. Therefore, the result is:
 A=72 cm</span>²
 The answer is: T<span>he area of a cross section that is parallel to face ABCD is 72 cm</span>².
3 0
3 years ago
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