Answer:
x = 6
y = -9
Step-by-step explanation:
we have:
7x +2y = 24 equation 1
8x+2y= 30 equation 2
using equation 2 we have:
8x = 30 -2y
x=
equation 3
using equation 3 in equation 1 we have:
7(
)+2y = 24

so we have:
x=
x=
x=6
Answer: Sugar example=4
milk example=5
4:5 =tea
Step-by-step explanation:
Answer:
1.1 mph
Step-by-step explanation:
Step one:
John swims a distance of 5/12 miles
time taken = 3/8 of an hour
Required
The speed with which John swims
Step two:
speed= distance/time
substituting we have
speed= 5/12/3/8
multiply the numerator by the inverse of the denominator
speed= 5/12*8/3
speed= 40/36
speed= 1.1 mph
ANSWER
x=5
EXPLANATION
The given quadratic function has x intercepts of (0,0) and (10,0) .
The x-value of the minimum point lies on the axis of symmetry of this graph.
The axis of symmetry is the midline of the x-intercepts

The x-value of the minimum point is

(6r-1)(-88-3)
Multiply the two brackets together
(6r)(-88)=-528r
(6r)(-3)=18r
(-1)(-88)=88
(-1)(-3)=3
-528r-18r+88+3 ( combine like terms)
Answer: -546r+91