You want to save $400 for a camping trip. you have $64.96 in your savings account. each week you deposit your paycheck from your part-time job. each paycheck is for $69.80. how many paychecks must you deposit to reach your goal of $400?

  5

Step-by-step explanation:

The amount of money in the savings account can be modeled as ...

  64.96 +69.80n

where n is the number of deposited checks. We want this value to be at least 400, so we must solve ...

  64.96 +69.80n ≥ 400

  69.80n ≥ 335.04

  n ≥ 335.04/69.80

  n ≥ 4.8

You must deposit 5 paychecks to reach your goal.

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3