Slove the followings.
1. Use your calculator to work out the weight of rubbish in each category.
2. A household produces 1.2 t of rubbish in a year. How many adults live in the house?
3. a. How much rubbish would an adult produce in a year if he recycled the glass, paper, and card?
b. What if he also had a compost heap at foot of his garden for vegetable and decomposable material?
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2. The number of adults who live in the house is 3 (1,200/400).
3.a. If an adult recycled the glass, paper, and card that have 42% of the rubbish, the adult will generate 232 kg (400 kg x (1 - 42%) of rubbish.
b. If the adult, in addition, had a composite for vegetable and decomposable material, he will generate 152 kg (400 kg x (1 - 62%).
Data and Calculations:
1 ton = 1,000 kg
Weight of rubbish produced by an adult per year = 400 kg
Total kg of rubbish produced by the family = 1,200 kg (1,000 x 1.2)
Percentage of Vegetable and decomposable material = 20%
Percentage of glass, paper, and card = 42% (33% + 9%)
Learn more: https://brainly.com/question/14954924
Related Questions
How do the 2s in 12.5 and 0.912 compare?
A The value of the 2 in 12.5 is 11,000 the value of the 2 in 0.912.
B The value of the 2 in 12.5 is 1100 the value of the 2 in 0.912.
C The value of the 2 in 12.5 is 10 times the value of the 2 in 0.912.
D The value of the 2 in 12.5 is 1,000 times the value of the 2 in 0.912.
Answers
Answer:
D The value of the 2 in 12.5 is 1,000 times the value of the 2 in 0.912
Step-by-step explanation:
The value of a digit in a number can be found by setting the other digits to zero.
The value of 2 in 12.5 is 2.
The value of 2 in 0.912 is 0.002.
The ratio of values is 2.000/0.002 = 2000/2 = 1000.
The value of 2 in 12.5 is 1000 times the value of 2 in 0.912.
Answer:
D
Step-by-step explanation:
The answer is D
$ 350 is shared in the ratio 2:5. The SMALLER share is
Answers
Answer:
$100
Step-by-step explanation:
sum the parts of the ratio, 2 + 5 = 7 parts , then
$350 ÷ 7 = $50 ← value of 1 part of the ratio , then
2 parts = 2 × $50 = $100 ← smaller share
the local store where tim shops charges a 7% sale tax for clothing complete the table by figuring the cost of jeans after tax is applied the first row is done
Answers
Answer:
$51.36
$77.04 i think
Step-by-step explanation:
Multiply the cost of the number of pairs of jeans by the sales tax amount, 7%.
cost of 2 pairs: 48 + 7/100 x 48 = $51.36
cost of 3 pairs: 72 + 7/100 x 72 = $77.04
the line passes through the point (6,1) and has a slope of -1/2 what is the point slope form and slope intercept form
Answers
Hope I helped!
Hi there! :)
We are given the slope of the line and a point that it passes through.
Using this information, we can write the equation in point-slope form:
y-y1=m(-x1)
y-1=-1/2(x-6)
y-1=-1/2x+3
Now, move -1 to the right, using the opposite operation:
y=-1/2x+3+1
y=-1/2x+4
And that's our equation. Hope it helps.
*Graceful Dreamer here to help
Good luck.
0/35-31/35-2/35= Reduce if possible
Answers
Hi!
I will write it like this to make it easier to see:
[tex]\frac{0}{35} - \frac{31}{35} - \frac{2}{35}[/tex]
Seeing this, we can right away take the [tex]\frac{0}{35}[/tex] away to make it easier, because 0/35 is 0. Now, we are left with:
[tex]-\frac{31}{35} - \frac{2}{35}[/tex]
Since the denominators (the 35s) are the same, we do not have to mess with those. We simply subtract the numerators (-31 - 2) and we get -33. Therefore, your answer is :
[tex]-\frac{33}{35}[/tex]
Hope this helps! Have a great day! :D
Find the slope of the line that passes through the given points. (4, - 3) and (9. - 7) Select the correct choice below and, if necessary, fill in the answer box within your choice. OA. The slope is (Type an integer or a simplified fraction.) O B. The slope is undefined.
Answers
Answer:
-4/5
Step-by-step explanation:
Answer: A. -4/5
Step-by-step explanation:
Slope Formula: y2 - y1 / x2 - x1
-7 - (-3) = -4
9 - 4 = 5
slope = -4/5
Correct me if I am incorrect.
What percent of 80 is 60
Answers
Answer:
80% of 75 is 60
Step-by-step explanation:
0.80x=60
x=60/0.80
x=75
did I click the right one ?
Answers
Answer:
no its b
Step-by-step explanation:
Answer:
yup
Step-by-step explanation:
(x3 + 9x2 + 1)(3x2 + 4x − 4)
Answers
Please HELP Write the graph's domain and range in interval notation.
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Step-by-step explanation:
Domain: x€ [ -7;7]
Range : y€ [-6;4]
For the domain, the graph's x-values are from -7 to 7
For the range, the graph's y-values are from -6 to 4
In the figure, what would be represented by c^2
A the sum of the lengths of legs a + b
B the area of the rectangle with diagonal
c the length of the hypotenuse of the triangle
D the area of a square constructed on the hypotenuse
Answers
Answer:
D
Step-by-step explanation:
We can go through each answer to see if it's right
A
In a right triangle, with c opposite the right angle, we know that
a²+b² = c²
The answer is stating that a+b = c². Unless both a and b are either 0 or 1, this is incorrect
B
The area of a rectangle is equal to length * width, or in this case, a* b. Compare this with our equation of
a²+b² = c² and this is incorrect
C
The hypotenuse, or the side opposite the right angle, is c. The answer is stating that c = c². This is incorrect unless c = 1 or c = 0
D
The square constructed on the hypotenuse would have a side length of c. The area of a square is length², or in this case, c². c² = c² so this is correct
How many eighty-fours are in 672
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There are “8” 84’s in 672.
Need help asap! Pls
Answers
Here is my solution, I hope it is helpful.
Answer:
x = 15
Step-by-step explanation:
Help help help help math math math
Answers
Answer:
55º
Step-by-step explanation:
The 125º angle makes a straight angle (180º) with the one next to it. This makes the angle next to it (adjacent angle) 55º. According to the rules of a transversal, the adjacent angle said above and angle 2 are alternate interior angles, making them equal.
1.) If you are dividing 1.7 by 8.5, how many places to the right will you need to move the decimal point in the divisor and dividend? a.) 1 b.) 2 c.) 3 d.) 0 2.) Find the quotient of 50 divided by 0.1. a.) 0.5 b.) 5 c.) 50 d.) 500 3.) In the division problem 0.86 ÷ 0.02, What would be the new dividend once you move the decimal as needed? a.) 8.6 b.86 c.) 43 d.) .2 4.) 6.9 divided by .3 is . a.) 2.3 b.) 23 c.) .23 d.) 123 5.) When 75.64 is divided by 0.61, the quotient is . a.) 124 b.) 125 c.) 134 d.) 126 6.) 7.26 ÷ 0.22 = N a.) 33 b.) 0.33 c.) 0.31 d.) 0.35 7.) 5.12 ÷ 0.10=n a.) 51.2 b.) 5.12 c.) 512 8.) Glen bought 0.75 meter of pink ribbon, which she will cut into 0.25meter strips for her Project in EPP. How many pieces did she make? a.) 3 b.) 4 c.) 5 d.) 6 9.) A bottle of medicine contains 27.5 ounces. I take 1.65 ounces each dose. How many doses are in th bottle? a.) 16.67 doses b.) 16 doses c.) 61 doses d.) 66 doses 10.) If Pathy earns Php256.25 for gardening. If she worked 20.5 hours this month, then how much did she earn per hour? a.) Php 12.5 b.) Php 125.00 c.) Php 25.00 d.) Php1.25 11.) 5.26 times 10 is . 12.) a.) 52.6 b.) 5.26 c.) .526 Divide 59 ÷ 7. Round off the answer to two places of decimals. d.) 5,260 a.) 8.44 b.) 8.53 c.) 8.43 d.) 8.42 13.) Which of the following mathematical equation has a quotient of 6.78? a.) 61÷ 7 b.) 61÷9 c.) 6.1÷ 9 d.) 9 ÷ 61 14.) How many 7 does 86 has? a.) 12 b.) 13 c.) 11 d.) 10 15.) What would be the remainder if you divide 59 by 9? a.) 3 b.) 5 c.) 6 d.) 1 16.) When the divisor is bigger than the dividend,the quotient is . a.) decimal in form b.) whole number c.) zero d. one 17.) 4÷9 = n a.) 0.4 b.) 0.5 c.) 0.6 d.) 07 18.) Which mathematical sentence below has a quotient of never ending decimal? a.) 24 ÷ 27 b.) 25 ÷ 25 c.) 1 ÷ 5 d.) 100 ÷ 500
Answers
All the answers to the given fraction problems are;
1) A; 1
2) D: 500
3) B: 86
4) B: 23
5) A: 124
6) A: 33
7) A: 51.2
8) A: 3
9) A: 16.67 doses
10) A: Php 12.5
11) A: 52.6
12) C: 8.43
13) B: 61 ÷ 9
14) A: 12
15) B: 5
16) A: decimal form
17) A: 0.44
18) A: 24 ÷ 27
1) 1.7 ÷ 8.5
We need to change them to whole numbers by shifting the decimal points one place to the right to get; (17/85)
2) 50 ÷ 0.1
Shift decimal one place to the right to get;
500/1
Quotient = 500
3) 0.86 ÷ 0.02
The dividend is usually the numerator. Let us shift both numerator and denominator by two decimal places to the right to get; 86 ÷ 2
Thus, new dividend = 86
4) 6.9 ÷ 0.3
Move decimal points one place to the right to get;
69 ÷ 3 = 23
5) 75.64 ÷ 0.61
Move decimal points two places to the right to get;
7564 ÷ 61
Numerator written as a factor of denominator gives;
(124 × 61)/61
Quotient = 124
6) 7.26 ÷ 0.22
Move decimal points two places to the right to get;
726/22
Numerator written as a factor of denominator gives;
(33 × 22)/22 = 33
7) 5.12 ÷ 0.10
Move decimal points two places to the right to get;
512/10 = 51.2
8) A 0.75 m pink ribbon was cut into 0.25 m strips. Thus;
Number of pieces = 0.75/0.25
Move both decimals 2 places to the right to get;
75/25 = 3 pieces
9) A bottle contains 27.5 ounces
You take 1.65 ounces for each dose.
Number of doses per bottle = 27.5/1.65
Move decimal points two places to the right; 2750/165
Number of doses per bottle = 16.67 doses
10) She earned Php256.25 for gardening.
She worked 20.5 hours the month.
Amount earned per hour = 256.25/20.5
move decimal places two points to the right to get;
Amount earned per hour = Php 12.5
11) 5.26 times 10
move decimal place two points to the right to get;
(526 × 1/100) × 10 = 52.6
12) 59 ÷ 7
Nearest multiple of 7 to 59 is 8.
Thus, 59 ÷ 7 = 8³/₇
⇒ 8.43
13) The one that gives a quotient of 6.78 is;
61 ÷ 9
14) How many 7 does 86 have?
This is; 86 ÷ 7
Nearest multiple of 7 to 86 is 84 which is 12 × 7
Thus, there are 12 numbers of 7 in 86.
15) Remainder if you divide 59 by 9
Nearest multiple of 9 to 59 is 54 which is 9 × 6.
Remainder = 59 - 54 = 5
16) When divisor is bigger than the dividend, it means the denominator is bigger than the numerator and so the quotient is an improper fraction which is a decimal.
17) 4 ÷ 9 = 0.444
Approximating to one decimal place = 0.4
18) The correct mathematical sentence with never ending decimal is;
24 ÷ 27
Read more on simplifying fractions at; https://brainly.com/question/6109670
help me pls no links
Answers
Answer:
this is a tough one but i know that sometimes it may seem hard but, with the right amount of practice, the hardest equations become the easiest to overcome. (Hint: Use PEMDAS)
Step-by-step explanation:
hope this helps you!
Answer:
I cant answer it i just need to talk to you its mya......
Step-by-step explanation:
AB:BD = 3:4
AC:CD = 3:2
Work out AB:BC:CD
Answers
Answer:
15:6:14
Step-by-step explanation:
AB:BD is split into a total of 3+4=7 parts.
AC:CD is split into a total of 3+2=5 parts.
So, if the two ratios are put on a number line together with the points A, B, C, and D, the number line would be split into a total of 35 parts (the LCM of 7 and 5).
AB would be (3/7)*35=15.
CD would be (2/5)*35=14
BC would be 35-(15+14)=6
So, the ratio is 15:6:14.
Use the given information to prove that CA = CB.
20 POINTS!!
Answers
The question and image??
(2x + 3y)^2– (2x – 3y)^2
Answers
Hi,
(2x + 3y)² - (2x - 3y)²
(a + b)² = a² + 2ab + b²(a - b)² = a² - 2ab + b²= [(2x)² + 2x*3y + (3y)²] - [(2x)² - 2x*3y + (3y)²]
= (4x² + 6xy + 9y²) - (4x² - 6xy + 9y²)
= 4x² + 6xy + 9y² - 4x² + 6xy - 9y²
= 12xy
I hope it helped ✅(◠‿◕)
PLEASE ANSWER ILL GIVE 5 STARS AND A HEART!!!
Answers
Answer:
120
Step-by-step explanation:
5x6 = 30
30x4= 120
The chart shows the sizes and prices of different sized boxes of Alex's favorite cereal.
Answers
Step-by-step explanation:
Compare the rates
Whichever has the smaller rate is the best deal.
remember, to be able to compare both cereal boxes they must have the same unit of measure (grams with grams, ounces with ounces, etc.)
Answer:
Price of box of cereal #1
---------------------------- = $ per ounce(or other unit)
Size of box #1 (in ounces,
or some other unit)
Yesterday, there were 100 problems assigned for math homework. Pablo got 60 problems correct and 40 problems incorrect. What percentage did Pablo get correct?
Answers
I Hope This Helps
What is the distance between (5,2) and (0, -2)
Answers
Step-by-step explanation:
the distance between 2 points can be seen as the Hypotenuse of a right-angled triangle with the legs being the x and y coordinate differences.
and so, we use Pythagoras
c² = a² + b²
with c being the Hypotenuse (the side opposite of the 90 degree angle).
distance² = (5 - 0)² + (2 - -2)² = 5² + 4² = 25 + 16 = 41
so, the distance is sqrt(41) = 6.403124237...
...................hyufgr54ed3w4ewfsa67grftgvb hj
Answers
Answer:
yes
Step-by-step explanation:
From 36 to 48 what is the percent change? Plz this is sooooo confusing
Answers
Answer:
33.33
Step-by-step explanation:
(48-36):36*100
(48:36-1)*100
133.33333333333-100 = 33.33
During a 12-hour car ride, each of 4 family members gets to choose the music for an equal amount of time. Write an equation, where t is time, to find out how long each member of the family is in charge of selecting the music.
Answers
If you need to split it equally just divide the whole by the amount of parts you need
a room that needs to be tiled is 12 1/2 feet wide by 14 feet long. tiles that mesure 2x2 are $0.79 per tile. Tiles that measure 3x3 are 1.25 per tile. which size tile should be used for this project to save the most money? How many tiles would be needed? How much would you spend on them? HELP PLEASE!
Answers
Answer:
Step-by-step explanation:
Area of the room is 12.5(14) = 175 ft²
2x2 tiles are 4 ft²
175 /4 = 43.75 tiles so 44 will be needed
44($0.79) = $34.76
3x3 tiles are 9ft²
175/9 = 19.4444... so 20 will be needed
20($1.25) = $25.00
the larger tiles will cost $9.24 less than the smaller tiles.
Obviously some of the tiles will need to be cut to fit as the length and width of the room are not always a uniform number of tiles for either side.
The dance team held 2 fundraisers to earn money for uniforms. During the second fundraiser, the team raised $450. The team raised a total of $620 for uniforms during both fundraisers. How much money did the dance team raise at the first fundraiser?
Answers
Answer:
The dance team raised 170$ during the first fundraiser
Step-by-step explanation:
to find how much the first fundraiser earned let's make an equation and make the first fundraiser the variable x
The equation would be:
x+450=620
so we would take away 450 from both sides
x+450-450=620-450
which would make the equation
x=170
meaning that the first fundraiser raised 170$
I need help with this please hurry it's timed
Answers
Answer:
60 inches
Step-by-step explanation:
26^2+54^2 = 3592
[sqrt]3592 = 59.9 --> 60inches
solve each inequality and graph its solution
Answers
Answer:
Step-by-step explanation:
1) 11v > -66
divide by 11
V > -6
all of them are done like this