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
alexgriva [62]
3 years ago
13

Solve the system of equations.

Mathematics
2 answers:
kirza4 [7]3 years ago
8 0

Answer:

x = -10

y = 13

Step-by-step explanation:

- 3x + 2y = 56 ------ Equation 1

- 5x - 2y = 24 ------ Equation 2

Equation 1 + Equation 2.

-8x = 80

x = -10

Substitute x = - 10 into Equation 1.

-3(-10) + 2y = 56

30 + 2y = 56

2y = 26

y = 13

krek1111 [17]3 years ago
7 0

X=-10 and Y=13, look at the image attached to see the solution

You might be interested in
________ is a fundamental difference between the t statistic and a z-score
chubhunter [2.5K]

Answer:

Step-by-step explanation:

- The Z-score allows you to decide if your sample is different from the population mean. In order to use z, you must know four things:

  • The population mean.
  • The population standard deviation.
  • The sample mean.
  • The sample size.

- Usually in stats, you don’t know anything about a population, so instead of a Z score you use a T-Test with a T Statistic.

- The major difference between using a Z score and a T statistic is that you have to estimate the population standard deviation. The T test is also used if you have a small sample size (less than 30).

6 0
3 years ago
given the points A(0,0) and B(8,4), show that P(2,6) is on the perpendicular bisector of the segment AB.
Serggg [28]

Answer:

Lil Nas X - THAT’S WHAT I WANT..................

Step-by-step explanation:

7 0
3 years ago
8. If3:8=c:56, the value of c will be
adelina 88 [10]

The scale for the second values is 56/8 = 7

C = 3 x 7 = 21

C= 21

6 0
3 years ago
A bank features a savings account that has an annual percentage rate of 3.5% with interest compounded quarterly. Vanessa deposit
vazorg [7]

Answer:

APY = 0.04 or 4%

Step-by-step explanation:

Given the annual percentage rate of 3.5% that is compounded quarterly, and a principal of $6,500:

We can use the following formula to solve for the annual percentage yield (APY):

APY =  (1 + \frac{r}{n})^n - 1

where <em>r</em> = interest rate = 3.5% or 0.035

<em>           n</em> = number of compounding periods per year = 4

We can plug in the values into the equation:

APY =  (1 + \frac{r}{n})^n - 1

APY =  (1 + \frac{.035}{4})^4 - 1

APY =  (1 + 0.00875)^4 - 1

APY =  (1.00875)^4 - 1

APY = 1.03546 - 1  

APY = 0.04 or 4%        

8 0
2 years ago
for the equation 2x(3x+5)+3(3x+5)=ax^2+bx+c , if this equation is true for all values of x,what is the value of b if a,b,and c a
guapka [62]

Answer:

b=19

Step-by-step explanation:

2x(3x+5)+3(3x+5)=ax2 +bx+c

by expansion,

6x2 +10x +9x+15=6x2 +19x +15

6 0
3 years ago
Other questions:
  • What is 657 in expanded form?
    13·2 answers
  • Four less than the product of <br> 8<br> and a number equals <br> 7
    11·1 answer
  • Distance between Train 1 and Train 2 = 95 miles. Average speed of Train 1 = 45 mph. Average speed of Train 2 = 60 mph. Train 1 i
    7·2 answers
  • Kai lives 3 kilometers from school, Brea lives 30,000 meters from school, and Cal lives 30,000 centimeters from school. Which st
    14·1 answer
  • What is the remainder when x 3 − 7x + 5 is divided by x + 3 ?
    8·1 answer
  • Set up a proportion and solve: Marlon spent $18 for 12 gallons of
    15·1 answer
  • The fair committee bought 325 balloons. It will use 169 of the balloons for decoration and will sell the rest at the fair. The c
    5·2 answers
  • A farmer had 140 eggs he sold 45% of them how many eggs did he sell
    6·2 answers
  • I NEED HELP ASAP PLZ!!!!
    11·1 answer
  • The length of a rectangle is represented by 9x - 5. The width of the rectangle is represented by 3.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!