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
givi [52]
3 years ago
11

PLEASE HELP!!! 8th grade math

Mathematics
1 answer:
arlik [135]3 years ago
6 0
Your answer will be the last one
You might be interested in
Solve the proportion
Vinvika [58]

Answer:

1.  (3/2)

2. (20)

3. (3)

4. (-9/5)

5. (-8/7)

6. (-2/3), (4)

Step-by-step explanation:

1.                          2.                        3.                          4.

x         3                   12         3               x           1                x + 3        3

/    =    /                     /     =    /                /    =      /                   /     =     /

4         8                   x           5              9           x                   2           5

8x = 12                    60 = 3x                  x² = 9                      5x + 15 = 6

÷8    ÷8                   ÷3    ÷3                   x = √9                          -15     -15

                                                                                                5x = -9

x = (3/2)                   x = 20                  x = 3                           ÷5    ÷5

                                                                                                  x = (-9/5)

5.                             6.

4 - x          3                   1               x - 3

  /       =     /                   /        =        /

 12            7              2x + 1               9

28 - 7x = 36                   9 = 2x^2 - 5x - 3

-28         -28                 + 3                    + 3

                                     12 = 2x^2 - 5x

-7x = 8                          -12                   -12

÷-7   ÷-7

                                       2x^2 - 5x - 12 = 0

x = (-8/7)                      

                                       -b +-√b^2 - 4ac

                                                     /                = -(-5)√-5^2 - 4 (2)(-12)

                                                    2a                                /

                                                                                      2(2)

                                             

                                          = 5-+√121        5 - 11        -6

                                                 /         =        /       =    /       = (-2/3)

                                                -4                 4             4

                                                            =     5 + 11          16

                                                                       /      =       /    = (4)

                                                                      4              4

I hope this helps!

3 0
2 years ago
10 lbs to 6 lbs need percentage<br>please give step by step
bazaltina [42]

Answer:

10ibs=1000%   6ibs=600%

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
How do you solve this??
DochEvi [55]

Answer:

Step-by-step explanation:

Hi Millie.

First we can realize that the number of cubes of each type does not matter, only the ratios between them. We see that if there are x yellow cubes, there are 3x blue cubes. And therefore, there are 5*3x green cubes, or 15x green cubes. This means that the cubes are in a 1:3:15 ratio, or that for every 1 yellow cube, there are 3 blue and 15 green cubes.

Now we can find the probability of picking a yellow cube. Since there are 18 non-yellow cubes for every yellow cube, this means that there is a 1/19 possibility of picking a yellow cube.

8 0
3 years ago
What is 13 nickels combined with 6 dimes?
Setler [38]
125 = 6 dimes = 60 and 13 nickles = 65

60+65= 125

Hope i was the brainliest asnwer.
6 0
3 years ago
42. The diagram represents a ramp in the shape of a right triangle and the lengths
oee [108]

The length of the ramp is  61 feet.

<h3>What is the length of the ramp?</h3>

In order to determine the  length of the ramp, Pythagoras theorem would be used.

The Pythagoras theorem: a² + b² = c²

where a = length

b = base

c = hypotenuse

√11² + 60²

√121 + 3600

√3721

= 61 feet

Please find attached the image of the ramp. To learn more about Pythagoras theorem, please check: brainly.com/question/14580675

5 0
2 years ago
Other questions:
  • Which symbol can be used to correctly compare the two fractions?
    5·1 answer
  • The quadratic function f(x) has a vertex at (9, 8) and opens upward. If g(x) = 4(x − 8)2 + 9, which statement is true?
    7·1 answer
  • A full truck weighed 3 2/6 tons. If the truck was only 4/6 full, how much would it weigh?
    6·1 answer
  • Akira loves to get manicures. At Manicures R us manicures are 25% off on Wednesday’s. Akira of course chooses Wednesday to get h
    10·1 answer
  • PLEASE HELP FIND THE SLOPE OF THE LINE PLEASEEE!!!!!
    15·1 answer
  • The sum of two numbers is 60 and the difference is 6. What are the numbers?
    10·1 answer
  • Find the perimeter of the polygon.
    14·1 answer
  • Consider the statement:
    6·1 answer
  • Jerome bought a pair of shoes for $58.13 including tax. The shoes had a sticker price of $54.20. What percent sales tax did he p
    10·2 answers
  • Question : Explore criteria of congruency of triangles using a set of triangle cut outs
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!