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
LenKa [72]
2 years ago
6

4. A craft store offered sewing classes on 12 of the 30 days in November.

Mathematics
1 answer:
Shkiper50 [21]2 years ago
5 0

Answer:

A. 0.4

Step-by-step explanation:

Write 12 of 30 as a fraction:

12/30

Convert this to be a fraction over 100 by setting up an equation:

Variable x = proportional answer to 12/30

12/30 = x/100

Cross multiply:

12 × 100 = 30 × x

1200 = 30x

40 = x

40/100

Convert this number into a decimal by adding a zero and decimal point before the "4" in 40:

0.40

Simplify:

0.40 = 0.4

I converted it into a decimal through the use of fractions, but you can also find the answer by doing long division: 12 ÷ 30. However, showing work for long division over a message is too complex so I solved the problem this way instead.

You might be interested in
(9^8/17^6)^4<br> This is something from study island
jeka94

I hate study island lol and are those supposed to be powers? Like 3 to the power of 8

8 0
3 years ago
Read 2 more answers
-2c+22=10
leva [86]

Answer:

The answer is that c = 6

Step-by-step explanation:

4 0
2 years ago
During the winter registration, 72 athletes signed up to play basketball. If they have 6 even team, how many players are on each
kumpel [21]

Answer:

12 on each team

Step-by-step explanation:

72 divided by 6 should give you the correct amount

5 0
3 years ago
The magnitude and direction of two vectors are shown in the diagram. What is the magnitude of their sum? ​
VLD [36.1K]

Separate the vectors into their <em>x</em>- and <em>y</em>-components. Let <em>u</em> be the vector on the right and <em>v</em> the vector on the left, so that

<em>u</em> = 4 cos(45°) <em>x</em> + 4 sin(45°) <em>y</em>

<em>v</em> = 2 cos(135°) <em>x</em> + 2 sin(135°) <em>y</em>

where <em>x</em> and <em>y</em> denote the unit vectors in the <em>x</em> and <em>y</em> directions.

Then the sum is

<em>u</em> + <em>v</em> = (4 cos(45°) + 2 cos(135°)) <em>x</em> + (4 sin(45°) + 2 sin(135°)) <em>y</em>

and its magnitude is

||<em>u</em> + <em>v</em>|| = √((4 cos(45°) + 2 cos(135°))² + (4 sin(45°) + 2 sin(135°))²)

… = √(16 cos²(45°) + 16 cos(45°) cos(135°) + 4 cos²(135°) + 16 sin²(45°) + 16 sin(45°) sin(135°) + 4 sin²(135°))

… = √(16 (cos²(45°) + sin²(45°)) + 16 (cos(45°) cos(135°) + sin(45°) sin(135°)) + 4 (cos²(135°) + sin²(135°)))

… = √(16 + 16 cos(135° - 45°) + 4)

… = √(20 + 16 cos(90°))

… = √20 = 2√5

5 0
3 years ago
Read 2 more answers
I WILL GIVE BRAINLIEST<br> Answer must be simplified<br> 4x ≤ 12
alina1380 [7]

Answer:   x ≤ 3

Step-by-step explanation:

4x ≤ 12

divide each side by 4

x≤3

8 0
3 years ago
Other questions:
  • I need help please answer if you know the answer
    9·1 answer
  • You work in a chemical lab. Last quarter, you successfully completed an average of about 5 chemical analyses per day. This quart
    15·2 answers
  • Can anyone give me formula to solve these problems?
    9·1 answer
  • Alice and Bob have two positive integers, x and y respectively, glued to their foreheads, so that each can read the other’s numb
    12·1 answer
  • for the polynomial P(x)=4x^2-5x+6 and c =1, find p(c) by (a. direct substitution and (b. the remainder theorem
    13·1 answer
  • What is the value of this
    6·1 answer
  • You guessed the height of the building to be 23 feet, but it was actually 35 feet. What was your percent error? Round to the nea
    12·2 answers
  • In 2010, the population of a city was 161,000. From 2010 to 2015, the population grew by 8%. From 2015 to 2020, it fell by 6.7%.
    7·1 answer
  • Place the vocabulary words on the diagram to correctly identify the opposite, adjacent, and hypotenuse sides of the
    6·1 answer
  • Andy is randomly selecting an outfit to wear to school. He can choose from 4 shirts: blue striped, red striped, black striped, o
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!