600 * .34 = 204 are in 8th grade
204 * 1/4 = 51 51 8th graders walk to school
D
Answer:
y=1/2x+4
Step-by-step explanation:
a perpandicular line can be made by just making the x negative, or , since it's already negtive, positive.
so i'll start with
y=1/2x+k (just basic equation w no values)
6=2+k (adding values of the coordinate)
4=k (simplifying)
y=1/2x+4 (plugging k back in to the equation)
Answer:
-4/5
Step-by-step explanation:
Please use a symbol such as x or Ф to represent an angle; your 0 is too easily confused with zero.
If Angle Ф lies in the second quadrant, and sin Ф=3/5, find cos Ф.
The sine of an angle is the ratio of the length of the opposite side to the length of the hypotenuse: sin Ф = opp / hyp = 3 / 5. Thus the opp side has length 3 and the hyp has length 5. By the Pythagorean Theorem,
the adj side has length √(5² - 3²), or √(25-9), or √16, or ±4. Because the angle is in the 2nd quadrant, choose adj = -4.
Then the cosine of this angle is cos Ф = adj / hyp = -4 / 5
Answer:
1. Each crayon weights 2 grams.
2. John can make 20 birthday cards in 1 hour.
Step-by-step explanation:
1. First we need to convert Kilograms into grams, to do this, we must multiply the # of Kgs by 1000. Then we need to solve for the mass of the crayon.
Each crayon weights 2 grams.
2. First we need to convert 1 hour into minutes. As there are 60 minutes in an hour, we must multiply the number of hours by 60 to find the minutes. Then we can solve for the number of birthday cards.
John can make 20 birthday cards in 1 hour.
Are we just adding fractions ? bc if it is then its D. 9 over 10
