Solving systems by elimination

2x+3y=6

2y=5-x

Step-by-step explanation:

2x + y = 6/3

x+y = 1

x=1-y

now,

y=5-(-1)/2

y=3

again,

x=1-3

x=-2

therefore, x= -2 and y = 3

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

there would be 162.15 calories in this cereal.

step-by-step explanation: