Math Questions. HELP!!!?

Question

1. 9 lb 15 oz- 5 lb 8 oz=
2. Mark uses 1 pt 9 fl oz and then 2 pt 10 fl oz from a container of film
developer that holds 3 qt. How much of the developer remains?
3. What units in the metric system would you use to measure each of the following quantities?
(a) Distance from Los Angeles to New York
(b) Your waist measurement
(c) Width of a hair
(d) Your height
4. The United States emitted 19.5 million t of nitrogen oxides
(NO) into the atmosphere in 1987. One metric ton (1 t) equals 1,000 kg. How many kilograms of NO were emitted to the atmosphere in the United States during 1987?
5. 72 in. = _________ cm (rounded to nearest hundredth)
6. 7 L =_________ qt (rounded to nearest hundredth)
7. Samantha’s speedometer reads in kilometers per hour. If the legal speed limit is 55 mi/h, how fast can she drive?

Answer 1

1)
1 lbs = 16 oz
9x16=144+15=159
5x16=80+8=88
159-88=71

2)
1 pint = 16 fluid ounces
1 quart = 2 pints = 32 fluid oz
1x16=16+9=27
2x16=32+10=42
32x3=96-27=69-42=27

3)
a) miles
b) inches or centimeters (pants are measured in inches)
c) mm but its a fraction of a mm
d) feet or/and inches

4)
19,500,000x1,000 (add 3 zeros to 19.5 mill) so 19,500,000,000 you would have 19.5 billion kg

5)
1 inch = 2.54 centimeters
72x2.54=182.88 cm

6)
1 Liter = 1.06 quarts (approx.)
7x1.06=7.42 qt.

7)
1 mile = 6.21 kilometers (approx.)
55x6.21=341.55 km/hf

Answer 2

I wouldn't be of much help if I just answered it for you. So I'll give you hints on how to solve those problems:

1) 16 oz = 1 lb
2) 8 fl oz = 1 cup, 2 cup = 1 pint, 2 pints = 1 quart
3) basic units of measurement in metric: 1000 mm = 1 m, 1000 m = 1 km
4) multiply
5) 1 inch = 2.54 cm
6) 1 L = 1.06 quarts
7) 1.609 km = 1 mile

If that still doesn't help, go to the following website for metric/english conversions:

Answer 3

for # 4 (is it 19.5 million tons?. . or metric tons?). . if it's metric tons, then to get the answer you just multiply the 19.5 million by 1000 (or you'll have 19.5 billion) . .

for 5, just miltiply 72 by 2.54 (the number of centimeters in an inch

for 6, I don't remember the conversion info for Liters to quarts. .

for 7, since 1 Km = .6 miles, divide 55 by .6, and you get 91.67, so it's like 92 km per hour

Answer 4

1. 4 lbs 7 oz(9 lbs-5 lbs=4; 15oz-8oz=7)
3. (a) kilometers
(b) centimeters
(c) millimeters
(d) centimeters
Sry that's all i really know lol

Answer 5

You seriously need to do your own homework. You have asked too many easy maths questions down here and we help you, not do them for you.

If anyone read this, please don't help her because she needs to learn. We, kind souls, are being manipulated by her to do all her homework.

Learn girl. That's what homework is for.