Pre algebra problems- help!?

Question

multiple choice



1.) What amount will an account have after 10 years if $120 is invested at 10% interest compounded annually?
$311
$122,880
$1,320
$13,200


2.). Which ordered pair is a solution of the equation 5x + y = –23?
(–3, –4)
(–5, –3)
(–4, –3)
(–3, –5)



5. Mrs. Cooper asked Dennis to do yard work every Saturday for twenty weeks. If Dennis planned his schedule to mow the lawn every two weeks and weed the garden every three weeks, how many times did he mow and weed on the same day?
6 times
4 times
3 times
5 times
6. An airplane is flying at an altitude of 4,800 ft. The pilot sights an object on the ground at an angle of depression of 23°. What is the slant distance from the airplane to the object?
12,234.66 ft
12,784.66 ft
12,284.66 ft
12,184.66 ft

Answer 1

Best Answer - Chosen by Voters

You need to do your own homewrok or you'll never get anywhere in life. Homewrok HELP is for people that need help on their homework, not so people can do it for you.

Answer 2

idk,my bff jill?

Answer 3

For #2 I got the 3rd choice (-4, -3)

5(-4) + -3= -23
-20 -3=-23
-23= -23

Source(s):

6th grade

Answer 4

on the interest problem use the formula: prt
where P is principle($120) R is rate (10%) and T is time( 1 year)
so take 120 times .10 times 1 and that gives you the answer


on the ordered pair, solve for y by subtracting 5x from both sides, so you have -23-5x. Exchange the negative for adding the opposite and use the commutative property so the equation reads:

y= -5x+-23

Answer 5

1. C
2. C
5. don't know
6. don't know