1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kirill [66]
3 years ago
15

the parallel sides of a trapezium are such that the longer side is 4cm more than the shorter side of the distance between them i

s 20 cm and the area of trapezium 600 sq cm find the length of the parallel sides
Mathematics
1 answer:
saw5 [17]3 years ago
4 0

Answer:

32cm and 28cm

Step-by-step explanation:

Area of a trapezium=0.5 ( sum of parallel sides ) × height

600=0.5( 4+a+a)×20

where a is the length of the shorter side

600÷0.5=(4+2a)×20

1200=(4+2a)×20

1200÷20=4+2a

60=4+2a

60-4=2a

56=2a

56÷2=a

28=a.

since the longer side is 4 cm more than th shorter side , 28 +4=32

You might be interested in
The graph shows the cost C in dollars of W pounds of blueberries a proportional relationship. select all the true statements
labwork [276]

Answer:

A, D

Step-by-step explanation:

Cost ($) = C

lbs (Blueberries) = W

One pound of blueberries costs $2.75 because to find how much 1 lb is you need to divide by 6.

6 is the number of pounds at that point in the graph, so you divide both the pounds and cost by 6 to find how much 1 lb is.

To find how much 5 lbs costs, multiply both the cost and number of pounds ($2.75 to 1 lb) by 5.

2.75 * 5 is 13.75 (This means C is wrong)

Do the same but with 12 for D

2.75 * 12 is 33, so D is correct

You could do the same method as above for E, but the easier way to do this is to see that the relationship of 3:9 is equal to a 1:3 ratio, which is the same as what the pounds to cost ratio is (which is 1:2.75)

Hope this helps! ^_^

4 0
3 years ago
3.
Gwar [14]

Answer:

x = 3  and  x = -3

Step-by-step explanation:

In this problem, we are substituting for x.

Let us take a look at our given answers.

x = -13 and x = -3 would not work because the numbers would not add up to -5. Since we have the positive brackets (or whatever you call them.) surrounding the x variable, that means that all numbers that are plugged into x will be positive.

-13 will be turned into 13,

13 - 8  \neq  -5

So that is wrong.

x = 3 and x = 3 would work because plugging it in, all outcomes from the two numbers would be negative.

3 - 8 = -5

|-3|  - 8 = -5

True.

The third one won't work because of the same reasons as the first one.

Then, the last one would not work well because, there is a solution.

4 0
3 years ago
What is m∠LNM?<br><br> m∠LNM = °72
spin [16.1K]

Answer:

72 degrees

Step-by-step explanation:

Congruent supplements Theorem.

3 0
3 years ago
A metal bar weighs 9.25 ounces. 65% of the bar is gold. how many ounces of gold is in the bar?
Elza [17]
Not sure I'm right but:

If the bar weighs 9.25 ounces and 65% of the bar is gold, you'd do 65% of 9.25. So the answer would be <span>65% of 9.25= 6.0125</span>
6 0
3 years ago
Suppose that of all babies born in a particular hospital are girls. If babies born in the hospital are randomly selected, what i
mario62 [17]

Answer:

100%

Step-by-step explanation:

If all the babies born in that hospital are girls then if randomly selected they will all be girls because there are no boys even at that hospital.

5 0
2 years ago
Other questions:
  • 2/3 of a class are girls <br> a) What’s the ratio to boys to girls in the class
    5·1 answer
  • PLEASE HELPPPPPPPPPPPPPJ NU HN HN N HN NH NH. HM M
    10·1 answer
  • Jessica's grandparents gave her $2000 for college to put in a savings account until she starts college in four years. Her grandp
    5·1 answer
  • Which is the quotient of 11/12 divided 5/7
    8·2 answers
  • 16% of the town's population are above the age of 65. If there are 320 residents are over the age of 65, approximately what is t
    11·1 answer
  • Evening tickets to a play are $24.50 each. Tickets for the afternoon show are $19 each. Janice wants to buy 6 tickets. Arrange t
    14·1 answer
  • The length of a cell phone is
    6·1 answer
  • A piece of paper is LaTeX: 8\frac{1}{2}8 1 2 inches wide. You tape 7 pieces of paper together to make a banner. How long is your
    11·1 answer
  • PLEASE HELP ME ASAP(WORTH 30 POINTS). If the domain is {0, 2, -6}, what is the range of y = -2x + 3?
    14·1 answer
  • I will make u brainlist ? <br>if u talk with me....​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!