algebra mid term

solve for s. 0.5s+1=7+4.5s

s=-1.5

the price of a climbing trip to mount kiliminjaro includes an inital fee plus a constant fee per meter. the table compares the distance of a trip (in meters) and the price of the trip (in dollars). what is the addiotnal fee for each meter climbed?

$0.13

complete the missing value in the solution to the equation. -3x+7y=5x+2y. (-5,___)

(-5,-8)

a young sumo wrestler decided to go on a special diet to gain weight rapidly. W=80+5.4t. how much weight does the wrestler gain every 2 months

10.8 kilograms

the price of a train ticket consists of an initial fee of $5 plus a fee of $2.75 per stop. Julia has $21 and would like to travel 50 kilometers. SHe wants to know the largest number of stops she can afford to buy on a ticket. Which inequality describes this scenario?

A) 5+2.75xS<=21 work: none

how many solutions does the following equation have? 15y+7+17y+2y+70

A. no solutions work: say you guessed

standard form

Ax+By=C

what is the slope of the line through (-1,8) and (3,-4)?

B. -3

what is the slope of the line? 2x+4y=6x-y

B. 4/5

how can you get from equaion A to B? A. 5=-2(x-1) B. 5=-2x+2

B. rewrite one side (or both) using the distributive porperty

which of the following have no solutions? A. 20x+40=40x+20 B. -40x+40=20x+20 C. 40x+40=40x+20 D. -20x+40=-20x+20

C. and D.

solve for x. -18x+21>-15 OR 20x-13=>27

E. all values of x are solutions

solve for d. 0.5(7d+4)=7-1.5d

d=1 work: say you guessed

solve for t. 12t-2<-5t+36

t<38/17

determine the intercepts of the line. -7x-6y+-15

x-int: 0,15/17 y-int: 2/5, 0

complete the point-slope equation of the line through (-1,-10) and (5,2)

y-2=2(x-5)

complete the point-slope equation of th eline through (-8,-1) and (-6,5)

y-5=3(x+6)

naoya read a book cover to cover ina single session, at a rate of 55 pages per hour. after 4 hours, he had 350 pages left to read

y=-55x+570

complete the equation fo the lien thruough (-6,5) and (-3,-3)

y=-8/3x-11

complete the equation of the line whose y-int is (0,6) and the slope is 3

y=3x+6

complete the equation of the line throuhg (3,-8) and (6,-4)

y=4/3x-12