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LenKa [72]
3 years ago
7

Notebooks cost $1.20 each. This weekend they will be $.80 What percentage is the sale?

Mathematics
1 answer:
geniusboy [140]3 years ago
6 0
The sale is 33% off notebooks. This can be found by first subtracting .8 from 1.2

1.2-.8=.4    Now divide .4 by 1.2 to get your answer.

\frac{.4}{1.2}=.33

.33=33%

You can also solve this mentally because if you know your basic multiplication tables, 3*4=12 and so \frac{2}{3} of 12 would equal 8.

Does you understand it now?

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okay so ive got a ton of piecewise function things and I really suck at them so maybe someone wants to help me? :D thanks giving
algol [13]
[] signs mean that the number is included in the domain and () mean that the number is not included. Now,

1. [-1,5)
Because x is greater than or equal to -1 (included) but less than 5 (excluded

2. [-5,13)
When we plug in x = -1, we get the minimum value of -5, which is included because its x-value was included. The, we plug in x = 5 to find the range's maximum and this is excluded because its x-value was excluded.

3. 218
x = 6 lies in the domain of the first function so we will use it to evaluate the value of x = 6. We do this by simply substituting x into the function.

4. 12
x = 9 is included in the domain of the second function and the value of the second function at all  points is 12.

5. 103
x = 10 is included in the domain of the second function so we will use it to evaluate the value of x = 10. This is done by substituting x into the equation.
4 0
3 years ago
- 3 1/5 + (-6 1/2)<br> A -3 2/7<br> B-3 7/10<br> C-9 2/7<br> D-9 7/10
Lelechka [254]

The answer is D -9 7/10

8 0
3 years ago
Can i please get some help here its math
LiRa [457]
X is 9


12x + 17 = -1 + 14x
18 = 2x
x = 9
7 0
3 years ago
Read 2 more answers
A home has a current market value of $225,000. MLS data from the last five years shows that home values have appreciated 6% per
Anastasy [175]

Answer:

THe value after 5 years will be $301100.755

Step-by-step explanation:

Each year the houses appreciates a 6%; as a result, the price of the house is multiplied by 1.06 for each passing year. If 5 years passed, then the price would multiply for 1.06 a total of 5 times, hence it will be multiplied by 1.06⁵.

The value of the house after 5 years will be

225000*1.06⁵ = $301100.755

8 0
4 years ago
An expression to represent the cost of the food for a catered lunch is 50 + 10g. The fee for the catering is $50 and then there
prisoha [69]

After value putting, if the number of guests represented by the variable (g) is 17 then the cost pf the food is $220.

In the given question we have to evaluate the expression if the number of guests represented by the variable (g) is 17.

An expression to represent the cost of the food for a catered lunch is 50+10g.

The fee for the catering is $50 and then there is a $10 charge for each lunch box.

Since g is representing the number of guests.

The the value of g is given 17.

Now putting the value of g in the given expression.

=50+10g

=50+10*17

=50+170

=220

Hence, if the number of guests represented by the variable (g) is 17 then the cost pf the food is $220.

To learn more about value putting link is here

brainly.com/question/4824769

#SPJ1

6 0
2 years ago
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