1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tamiku [17]
3 years ago
11

PLEASE HELP!!!!!! I will give brainliest I promise only if it’s correct and if it’s not I will report because this is very impor

tant to me thanks

Mathematics
1 answer:
Svetllana [295]3 years ago
3 0

Answer:

Step-by-step explanation:

1) Price of 8 pack of toothbrushes = $ 18.12

Price he paid after using coupon  = 18.12 - 3  = $ 15.12

Unit rate = Price he paid ÷ number of toothbrushes

              = 15.12 ÷ 8

              = $ 1.89

2) 0.5 hours = 30 minutes

Duration of guitar class on Monday = 30 minutes

Duration of guitar class on Tuesday = 1.5 hours = 1 hr 30 min

Duration of guitar class on Thursday = 2 hrs

Total duration  = 30 min + 1hr 30 min + 2 hrs

                         = 4 hrs

Amount paid for 4 hrs = $ 180

Rate per hour = 180 ÷ 4

                       = $ 45

You might be interested in
Use compatible number to find two estimates that the quotient is between 1,624 divided by 3
Alina [70]
The correct answer is 541.2 to be exact
3 0
3 years ago
Why is the letter i the square root of negative one ( <img src="https://tex.z-dn.net/?f=%5Csqrt%7B-1%7D" id="TexFormula1" title=
Alja [10]

Answer:

It is an imaginary number.

Step-by-step explanation:

The square root of negative one is "i," the imaginary number. This concept is immensely useful in mathematics, as it allows for there to be square roots of negative numbers, which is otherwise not possible using only real numbers.

Any number that includes a negative square root is called an imaginary number. For example, the square root of -9 equals 3i, an imaginary number. When an imaginary number and a real number are combined, for example 2 + 3i, this is called a complex number. Complex numbers have many real world applications, including manipulating sound waves and calculating electrical currents.

3 0
3 years ago
What is the value of A?
beks73 [17]

Answer:

a = 156

Step-by-step explanation:

24  and  a form a straight line so they add to 180 degrees

24 +a = 180

Subtract 24 from each side

24+a-24 = 180-24

a = 156

7 0
3 years ago
Find the value of a²+b <br> if...<br> a=-2 and b=5
Nana76 [90]

Answer:

9

Step-by-step explanation:

a²+b

Substituting values,

=> (-2)^2+5

=> 4 + 5

=> 9

4 0
3 years ago
Read 2 more answers
Can you plz help me on this i will give you brainlist
lukranit [14]

1: Whole Numbers: (Do not include Negative)

- 15

- 134

Rational Numbers:

- 15 (15/1) (You can change 15 into a rational by putting it over 1)

- 134 (134/1)

- -1/3

- 2.4

- -18 (-18/1)

2: Least to Greatest

0.09, 1/9, 9/10, 91%

3: Greatest to Least

5/4, 1 1/5, 100%, 10.5

<em>I hope this helps, and Happy Holidays! :)</em>

4 0
3 years ago
Other questions:
  • Which equation shows the correct use of the Distributive Property?
    6·2 answers
  • Sweet T noticed that the ratio of long boards to short boards was 1:4. If there were 35 surfboards at the beach, how many were s
    10·2 answers
  • In integers what is -11 -6
    5·1 answer
  • Based on historical data, your manager believes that 45% of the company's orders come from first-time customers. A random sample
    9·1 answer
  • Yes i give brainliest!<br>A B C Or D?​
    13·1 answer
  • Please solve 1 thru 4
    11·2 answers
  • The chart below show the highest points in California's channel island
    5·1 answer
  • A prism and two nets are shown below: 3 in. 5 in. 7.2 in. 4 in. Prism B В B A с А D D Net A Net B Part A: Which is the correct n
    10·1 answer
  • 4. The side lengths of a square are each 5p. By adding 1 to the length and subtracting 1 from the width, a rectangle is made. Wh
    7·1 answer
  • A Kroger's shopper bought a total of 8 pounds of
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!