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
lina2011 [118]
3 years ago
14

Substitution or Elimination.

Mathematics
1 answer:
zimovet [89]3 years ago
5 0
It's a simultaneous equation ^^; So basically I first look at the number in front of the Y values (if they aren't the same you have to multiply each equation by the other number in front of Y in the second line and vice versa but anyways) you add the two equations if they are the same so: -3x+2y=23 + 5x+2y = -17 which should give you 2x=40 then divide by two to get x put your x answer back into the top or bottom equation (your call ^^;) and then work out what must be the Y value! I really hope this helps! ^^; 
You might be interested in
Bill is in a class of 15 boys and 35 girls 40 percent of the students in the class take the bus to school how many students do n
GREYUIT [131]

the gender of the kids does not matter so it can be discarded.

you add up how many boys and girls in the class to make a total of 50 kids

your 100% is 50

meaning 40% of 50 is 20

so if 20 kids took the bus to school then 30 did not take the bus.

6 0
3 years ago
What is the scale factor from polygon ABCD to polygon PQRS??
deff fn [24]

Scale factor is defined as a number which multiplies or scales some quantity.

The shape of the figure remains same, the image  becomes larger or smaller.

If the scale factor is greater than one, then the image is enlarged.

If the scale factor is less than 1 but greater that 0, then the image becomes smaller.

In the above image,  AD = 2 units.

It's corresponding side PS =  3 units

Similarly AB = 1 unit and PQ = 1.5 units

Hence , 1 * 1.5 = 1.5

2*1.5 = 3

Hence, the scale factor of the given image is 1.5 ... Answer

7 0
3 years ago
The square of a number x is 92. The number x is between what two consecutive whole numbers?
natta225 [31]
The number X is placed somewhere between 9 and 10. That's because 9 squared is 81 and 10 squared is 100.
5 0
3 years ago
Keiko started a race at 6:44 PM and finished it at 7:13 PM.
KiRa [710]

Answer

29 minutes

Step-by-step explanation:

5 0
3 years ago
Are the following equivalent -3x=-x-2x <br>​
valina [46]

Answer:

Yes.

Step-by-step explanation:

By adding like terms, -x - 2x = -3x. Therefore, they are equivalent.

4 0
3 years ago
Read 2 more answers
Other questions:
  • The number of hours that Terry, Dan, Jenny, and Lucy watch television during the week is given in the table. Using the mean as t
    14·2 answers
  • What is the ratio of 2 cups of flour and 1 cup of milk.
    15·1 answer
  • You decide to buy some berries as a surprise for your aunt from the local farmer’s market. However, when you arrive, you see tha
    15·1 answer
  • WRITE AN EXPRESSION. USE AN EXPONET, RATHER THAN REPATED MULITIPLICATION. (-4) (-4) SHOW WORK
    11·1 answer
  • Which statement is true about a number and its additive inverse?
    9·2 answers
  • The net of a cube is made up of five squares. <br> a. True<br> b. False
    15·2 answers
  • What is 446,221 rounded to the nearest ten what is the answer
    15·2 answers
  • Duane bought 3.8 pounds of bananas for $.55 per pound.<br> How much did he spend in dollars?
    13·1 answer
  • Find a third-degree polynomial equation with rational coefficients that has roots –5 and 6 + i.
    15·1 answer
  • Enya is building a storage cupboard in the shape of a rectangular prism. The rectangular prism has a square base with side lengt
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!