Fred: 4m: 30 minutes=8 miles per hour
janet: 6m: 40minutes= 3 miles every 20 minutes=9 miles per hour
so janet runs 1 mile more per hour
filled in:
Fred ran 4 miles in 30 minutes. Janet ran 6 miles in 40 minutes. Fred and Janet each continue running at their same rate for 1 hour. fred will run 8 miles in 1 hour. Janet will run 9 miles in 1 hour. Janet will run 1 miles farther in 1 hour
Answer:
a) Right triangle b) Obtuse triangle c) equilateral triangle.
Step-by-step explanation:
A right triangle has a 90 degree angle. Obtuse triangles need to have one angle greater than 90 degrees, and equilateral triangles have same sides.
The snack shop
explanation: the equation of the snack shop is y=1.25x while for the sports field it is y=1.30x
1.25 < 1.30
Answer:
(x, y) = (1.89, 0.59)
Step-by-step explanation:
Written in general form, the equations are ...
4x +5y -10.51 = 0
3x +8y -10.39 = 0
These can be solved using the cross-multiplication method to find ...
∆1 = (4)(8) -(3)(5) = 17
∆2 = (5)(-10.39) -(8)(-10.51) = 32.13
∆3 = (-10.51)(3) -(-10.39)(4) = 10.03
Then the values of the variables are ...
x = ∆2/∆1 = 32.13/17 = 1.89
y = ∆3/∆1 = 10.03/17 = 0.59
The solution is (x, y) = (1.89, 0.59).
Answer:
27 trees
Step-by-step explanation:
Both numbers are divisible by 27. For the oak trees there would be 2 rows and for the pine trees there would be 1 row, each made up of 27 trees.
