Question 3:
Robert drove to the mall, which is twelve kilometers away. He left at 2:57 and arrived at the mall at 3:19. What was his average driving speed?
Remember to convert to hours!
Round to a whole number
kph
Question 4:
If the base of a rectangle is 17.8 cm and the area is 357.78 cm2, what is the height of the rectangle?
Enter a decimal
cm
Question 5:
If the area of a rectangle is 646.84 mm2 and the height is 31.4 mm, what is the perimeter of the rectangle?
mm
Question 6:
If the area of a parallelogram is 391 mm2 and the height is 23 mm, what is the length of the base?
mm
Question 7:
If the base of a rectangle is 1 3/5 cm and the area is 14 18/25 cm2, what is the height of the rectangle?
Enter a decimal.
cm
Question 8:
If the base of a rectangle is 7 4/5 m and the perimeter is 16 1/10 m, what is the height of the rectangle?
Enter a fraction.
m
Question 9:
What is the area of a triangle with base 11 cm and height 21 cm?
Enter a decimal.
cm2
Question 10:
If the area of a square is 49 square inches, find the length of one side.
in
Question 11:
If the perimeter of a rectangular bathroom room is 22 meters and its length is 6 meters, find its width.
m
Question 12:
If you drive 350 miles in 7 hours, what is your average speed?
mph
Question 13:
A plane flies from Des Moines, IA to Los Angeles, CA, a 1435-mi trip, in 5 hours. What is the plane's average speed?
mph
Question 14:
Use the formula F = (9/5)(C) + 32. If it is 59 degrees Fahrenheit outside, what is the temperature in Celsius?
degrees Celsius
Question 15:
A jogger and a walker leave the same location at the same time and travel on the same road. The walker moves at a constant speed of 6 mph. At the end of 2 hours the jogger is 8 miles ahead of the walker. Find the speed of the jogger. Use a chart to help you organize the information.
mph
Question 16:
Carol invests $2500 for one year. She invests part in a bond paying 5 percent and the rest in a stock paying 3 percent. If the total interest received is $95.00, how much was invested in the bond? Use a chart to help you organize the information.
$
Question 17:
For Question #16, how much was invested in the stock?
$
Question 18:
A plane flies from Portland, ME to El Paso, TX with an average speed of 303 mph. A car drives the same distance and leaves at the same time, averaging a speed of 50 mph. The plane arrives in El Paso 35.42 hours before the car. How far is it from Portland to El Paso? Use a chart to help you organize the information.
miles
Question 19:
The Party Bank pays four percent simple interest per year on deposits. Connor was paid $1,104 of interest over a four year period. How much did he originally deposit?
$
Question 20:
Alexis left a location at 8 a.m. The channel three news sent a helicopter from the same location eight hours later to catch up with Alexis. The helicopter's average rate of speed is one hundred fifty mph. If Alexis traveled at 53 mph, how far did she drive?
Enter a decimal rounded to the hundredths place.
miles
2007-01-25 03:55:37 · 8 answers · asked by me1026 1 in Science & Mathematics ➔ Mathematics
This is a test or homework.
If you want a principle or help with a particular exercise, that is fine. *This* core-dump of the whole assignment is inappropriate.
2007-01-25 04:39:57 · answer #1 · answered by Jerry P 6 · 0⤊ 0⤋
Question 3:
Robert drove to the mall, which is twelve kilometers away. He left at 2:57 and arrived at the mall at 3:19. What was his average driving speed?
3:19 - 2:57 = 22 min = 11/30 of hour = 11/30h
Space/time = go ahead
><
Question 4:
If the base of a rectangle is 17.8 cm and the area is 357.78 cm², what is the height of the rectangle?
A = bh
357.78 = 17.8h
h = 357.78 : 17.8
h = 20.1 cm
Answer is 20.1 cm.
><
Question 5:
If the area of a rectangle is 646.84 mm² and the height is 31.4 mm, what is the perimeter of the rectangle?
A = bh
646.84 = 31.4b
b = 20.6mm
P = 2b + 2h
P = 2(20.6) + 2(31.4)
P = 41.2 + 62.8
P = 104 mm
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Question 6:
If the area of a parallelogram is 391 mm² and the height is 23 mm, what is the length of the base?
A = bh
391 = b*23
391 : 23 = b
b = 17mm
><
Question 7:
If the base of a rectangle is 1 3/5 cm and the area is 14 18/25 cm², what is the height of the rectangle?
A = bh
14 18/25 = 1 3/5 * h
368/25 = 8/5h
368/25 : 8/5 = h
h = 368/25 * 5/8
h = 9,2 cm
><
Question 8:
If the base of a rectangle is 7 4/5 m and the perimeter is 16 1/10 m, what is the height of the rectangle?
P = 2b + 2h
16 1/10 = 2(7 4/5) + 2h
161/10 = 2(39/5) + 2h
161/10 - 49/5 = 2h
2h = 63/10
h = 63/10 * 1/2
h = 63/20 m or 3,15m
><
Question 9:
What is the area of a triangle with base 11 cm and height 21 cm?
A = (bh):2
A = (11 * 21) : 2
A = 115,5cm²
<>
Question 10:
If the area of a square is 49 square inches, find the length of one side.
A = 49in²
A = w * L (w = L)
L = \/49
L = 7in
<>
Question 11:
If the perimeter of a rectangular bathroom room is 22 meters and its length is 6 meters, find its width.
P = 2w + 2L
22 = 2w + 2(6)
22 - 12 = 2w
2w = 10
w = 10:2
w = 5 meters
><
Question 12:
If you drive 350 miles in 7 hours, what is your average speed?
350/7 = 50mph
><
Question 13:
A plane flies from Des Moines, IA to Los Angeles, CA, a 1435-mi trip, in 5 hours. What is the plane's average speed?
1435/5 = 287mph
><
Question 14:
Use the formula F = (9/5)(C) + 32. If it is 59 degrees Fahrenheit outside, what is the temperature in Celsius?
59 = 9/5C + 32
59 - 32 = 9/5C
27 : 9/5 = C
C = 27 x 5/9
C = 15ºC
><
Question 15 , 16 and 17:
><
Question 18:
><
Question 19:
The Party Bank pays four percent simple interest per year on deposits. Connor was paid $1,104 of interest over a four year period. How much did he originally deposit?
I = Cit / 100
1,104 = C.4.4/100
1,104 x 100 = 16c
16c = 110,4
c = 110,4 : 16
C = $ .69
><
Please check and good luck!
:)*
2007-01-25 04:00:41 · answer #2 · answered by aeiou 7 · 2⤊ 2⤋
I'll do number one only, 'cause you should do Some of your own homework.
distance = (Time)(Rate)
Rate = Distance / Time
R = 12 Km / .37 Hours (is 22 minutes)
R=32.43 Km per hour
2007-01-25 04:08:03 · answer #3 · answered by Anonymous · 1⤊ 0⤋
give 1 or 2 questions at a time or ppl r gonna b put off and not do them. sorry im completly **** at maths but gd luck and use my advice, ull get answers more quickly that way!
2007-01-25 04:00:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Seriously, this looks like a math review quiz or something. You should do it yourself and not look for answers here.
2007-01-25 04:00:41 · answer #5 · answered by bequalming 5 · 0⤊ 0⤋
How will you know whether the answers you get are correct or not?
2007-01-25 04:14:50 · answer #6 · answered by Always Hopeful 6 · 0⤊ 0⤋
it may take an year to solve ur QUESTIONS
2007-01-25 04:02:05 · answer #7 · answered by srinu710 4 · 0⤊ 0⤋
do u want us to live life and die in solving ur questions ????????
or you want us to solve ur home work????!!!!!!!!
(kidding only)
2007-01-26 17:39:20 · answer #8 · answered by Anonymous · 0⤊ 0⤋