1) sally wants to buya bicycle.,the regular price of the bicycleis $379.99. the sale price of the bike is 25% off the regular price .
a. what is the sale price of the bicycle
b. after add 8.25% for the tax on the dicounted price
2) juluie is painting the four walls of her rom . it is 13 feet wide, 20 feet lonf and 9 feet high. one gallon of paint will cover 800 square feet. howmany gallons of paint must she buy to paint the entire room with 2 coats?
3) 4(3x-4)-4=4x+1+x
4) all nintendo games 10% to 50% off
he has been saving his money to buy a game the regularly cost s 40$. jacks friend robert tells him to have betqween $20 and $30 to buy the game ast the sale price is this estimate correct
2007-06-29 11:12:06 · 5 answers · asked by almeda_94 1 in Science & Mathematics ➔ Mathematics
Do yourself a favor and post one question at a time. I feel sorry for the person who will actually answer your entire homework
2007-06-29 11:23:38 · answer #1 · answered by Anonymous · 0⤊ 1⤋
1) a. Sale price of bicycle:
$379.99 * (100% - 25%)
$379.99 * 75%
$284.99
1) b. Sale price plus tax:
$284.99 * (100% + 8.25%)
$284.99 * 108.25%
$308.50
2) x = double no. of square feet to paint
x = 2 * ([2 * {13 * 9}] + [2 * {20 * 9}])
x = 2 * ([2 * 117] + [2 * 180])
x = 2 * (234 + 360)
x = 2 * 594
x = 1188
g = no. of gallons needed
g = 1188 / 800
g = 1.485 gallons or 1 & 97/200 gallons
3) 4(3x - 4) - 4 = 4x + 1 + x
12x - 16 - 4 = 5x + 1
12x - 20 = 5x + 1
12x - 5x = 20 + 1
7x = 21
x = 21/7
x = 3
4) The range is:
between (50% x $40) and (90% x $40)
between $20 and $36
2007-07-02 19:42:05 · answer #2 · answered by Jun Agruda 7 · 1⤊ 0⤋
1. sale price = .75(379/99= $284.99
1.0825 * 284.99 = $308.50 after txes added.
2. Total area = 9(13+20)*2= 594 ft^2
Two coats will be 2 *594 = 1188 ft^2
1188/800=1.49 gallons
3 4(3x-4)-4=4x+1+x
12x-16 -4 =5x +1
7x = 21
x = 3
4. No. He needs between 20 and 36 dollars
2007-06-29 11:35:42 · answer #3 · answered by ironduke8159 7 · 0⤊ 0⤋
a. the sale price is 284.99
379.99*.25=94.99
379.99-94.99= 284.99
b. 284.99*.0825=23.511675
284.99+23.511675=308.50
3. 12x-16=5x+1
7x=17
x=17/7
4. no the price will between 20 and 36.
because the 10% of 40 is 4 so the origininal price after 10% off will be 36.
2007-06-29 11:22:21 · answer #4 · answered by cafet 1 · 0⤊ 1⤋
a).379.99x0.75=284.99 answer
b).294.99x108.25/100=319.33 answer
3.4(3x-4)-4=+4x+1+x
12x-20=5x+1
7x=21
x=3. answer
2.area=2(13x9+20x9)=18x33=594ft^2
number of gallons required=2x594/800=1.48gallons
4).off=20/40x100=50% border
ii off=10/40x 100=25% correct
)
2007-06-29 11:28:18 · answer #5 · answered by Anonymous · 0⤊ 1⤋