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
Sindrei [870]
3 years ago
12

a trapezoid has parallel sides of length 26 mm and 44 mm. its other sides measure 10 mm and 17 mm. what is the length of the bim

edian joining the two non parallel sides?
Mathematics
1 answer:
kirill115 [55]3 years ago
5 0

Answer:

35 mm.

Step-by-step explanation:

That would be (26 + 44)/2

= 70/2

= 35 mm.

You might be interested in
Courtney is twice as old as Andre and three yoars older than Natalio Courtnoy is half Shar's ago Tho differenco between Shani's
Ghella [55]

Answer:

Andre's

Step-by-step explanation

I think its Andre. I apologize if it is not.

3 0
3 years ago
A linear equation in two variables has infinitely many solution the set of all solutions to a linear equation in two variables f
Greeley [361]
<span>1, During a 1-hr television program, there were 22 commercials, Some commercials were 15 sec and some were 30 sec long. Find the number of 15- sec commercials and the number of 30 sec commercial if the total playing time for commercial was 9.5 minutes.

</span>a) <span>show how to formulate your system of equations for your problem,

Answer:
- state the variables: x number of 15 sec commercials, y number of 30 sec commercials
- translate the word statement into algebraic language

b) state the two equations:

- translate the word statement into algebraic equations:

</span><span>* there were 22 commercials => x + y = 22
* the total playing time for commercial was 9.5 minutes => 15x + 30y = 9.5*60 </span><span>

Answer:
Equation (1) x + y = 22
Equation (2) 15x + 30y =  570

c) state which method you will use to solve either addition or substitution

Answer:
adition: multiply the first equation times - 15 and add the two equations.

d) solve your system showing and explaining each step of the process

Answer:
- muliply eq (1) times - 15

-15x - 15y = - 330

- add that to the eq (2):

-15x + 15x - 15y + 30y = -330 + 570

- add like terms: 15y = 240

- divide both members by 15: 15y/15 = 240 / 15 => y = 16

- replace y = 16 in eq I(1) => x + 16 = 22 => x = 22 - 16 = 6

Solution: x = 6, y = 16

e) Be sure to check your solution!

x + y = 22
6 + 16 = 22
22 = 22 --> check

15x + 30y = 9.5*60
15(6) + 30(16) = 570
90 + 480 = 570
570 = 570 ---> check

f) Once a solution is found explain what this solution means in the context of the problem, write the answer to the word problem in words</span><span>

The solution means that d</span><span>uring a 1-hr television program, there were</span><span> 6 commercials of 15 sec and 16 commercials of 30 sec.

2, How many quarts of water should be mixed with a 30% vinegar solution to obtain 12 qt of a 25% vinegar solution. (Hint: water is 0% vinegar).</span>

a) variables:

- state the variables
x: number of quarters of water
y: number of quarters of vinegar

- translate the words into mathematical language

12 qt 25% vinegar solution

=> total number of quarts = 12 = x + y

balance in vinegar:

vinegar from water + vinegar from 30% vinegar solution = vinegar in the 25% vinegar solution

0 + 0.3y = 0.25 (x + y)

c) Equations

Eq (1) x + y = 12

Eq (2): 0.3y = 0.25x + 0.25y

=> 0.25x - 0.05y = 0

d) solve

- multiply eq (1) times 0.05 and add to eq (2)

0.05x + 0.05y = 0.6
0.25x - 0.05y = 0
------------------------
0.30x = 0.6

x = 0.6 / 0.3 = 2

x + y = 12 => y = 12 - y = 12 - 2 = 10

Solution: x = 2, y = 10

e) check:

x + y = 12
2 qt + 10qt = 12 qt
12 qt = 12 qt ---> check

vinegar:

10*0.3 = 12*0.25
3 = 3 -> check

f) Explanation of the solution

The solution means that you have to mix 2 qts of water with 10 qts of 30% vinegar solution to obtain 12 qt of 25% vinegar solution.

5 0
3 years ago
Two samples of fish from a pond were analyzed. The second sample was taken six months after the first sample.
Agata [3.3K]

Answer:

B.

D.

E.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Gina Wilson unit 3: homework 6: Slope intercept form and standard form HELP
Goshia [24]

Answer:

1.) 2x-y=-7 --> y=2x + 7

2.) 5x+3y=12 --> y= -5/3x + 4

3.) x-y=1 --> y= x- 1

4.) x-3y=-15 --> y=1/3x + 5

5.) 8x-10y=20 --> y=4/5x - 2

6.) 14x+6y=36 --> y=-7/3x+6

Step-by-step explanation:

Hope this helped.

8 0
2 years ago
Jason is 22 years older than his sister joan. in 9 years, he will be twice as old as joan. how old is each of them now?
Liono4ka [1.6K]
Jason will be 36 and joan will be 27 years old.
3 0
3 years ago
Other questions:
  • Which set of fractions is ordered from least to greatest? 2/6,1/4,4/10 1/4,2/6,4/10 4/10,2/6,/14 or 1/4,4/10,2/6
    14·1 answer
  • - 6 w - 4 + 2 w = 4<br><br> what the answer
    5·2 answers
  • at the end of the day vegetables at the farm market sell for $2 a pound and a basket cost $3.50 if Charlie wants to buy a basket
    14·1 answer
  • 1) Mister Smith wants to put a small fence around his garden. A store sells three feet sections of fence at cost of $5.49 per se
    5·1 answer
  • A freight train completes its journey of 150 miles 1 hour earlier if its original speed is increased by 5 miles/hour. What is th
    6·1 answer
  • -3x + 9y=-57 x=4 what is the answer
    7·2 answers
  • The lines below are perpendicular if the slope of the green line is 3/2 what is the slope of the red line
    8·2 answers
  • Nathan sells 10 cups of lemonade for $1.00 each. It cost him $0.25 to make
    11·2 answers
  • What is the factor of the expression -30-21x
    8·2 answers
  • Find W:<br><br> (14w + 50)<br> 35<br> (28w - 45)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!