Answer:
32 Students
Step-by-step explanation:
3/5 = 12/20
This means you add the boys and girls to get 32.
9514 1404 393
Answer:
- x + y + z = 500
- 2.50x +1.75y +3.20z = 1172.50
- 0x +y -z = 100
Step-by-step explanation:
Let x, y, z represent the numbers of cheeseburgers, plain burgers, and chicken burgers ordered for the party.
We have three relations given. Each can be used to write an equation.
x + y + z = 500 . . . . . . . . . a total of 500 meals were ordered
2.50x +1.75y +3.20z = 1172.50 . . . . . the total cost
0x +y -z = 100 . . . . . . . . . . 100 fewer chicken were ordered than plain
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<em>Additional comment</em>
We put the coefficient of x as 0 in the last equation to facilitate writing this system as an augmented matrix.
The solution is (x, y, z) = (300, 150, 50).
Answer:75
Step-by-step explanation:
At first the temperature will have to drop to a 0 whether it’s Fahrenheit or Celsius so that’s 21 degrees. To get to -3, that’s an extra three degrees dropped. So 21 plus 3 equals 24 degrees dropped.
Answer:
obtuse, isosceles
Step-by-step explanation:
We have two angles that have the same measure - that means two sides are equal length. That means the triangle is isosceles
We have one angle that is greater than 90 degrees - that tells us the triangle is obtuse