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
likoan [24]
3 years ago
13

Solve each system by substitution​

Mathematics
1 answer:
xeze [42]3 years ago
8 0

Answer:

x=2,y=5

Step-by-step explanation:

y=8x-11 ----(1)

y=-7x+19----(2)

Replace (1) in (2)

8x-11 =-7x+19

8x+7x=19+11

15x =30

x =30÷2

x =2

If x=2,then replace x=2 in (1)

y=8(2)-11

y=16-11

y=5

You might be interested in
Kamal invested $1200 in a savings acc paying 1.8% per yr compound interest.
Greeley [361]

Answer:

A = $1311 and 96cents

Step-by-step explanation:

A = P(1 + \frac{r}{n})^{nt}

P = $1200

r = 1.8% = 0.018

n = 1 (compounded yearly)

t = 5

A = 1200(1 + 0.018)^5 = 1200 \times(1.018)^5 = 1311. 96

7 0
3 years ago
Find the zero of the function p(x) = 1/4x-3
harkovskaia [24]

Answer:

x = 12

Step-by-step explanation:

Given

p(x) = \frac{1}{4} x - 3

To find the zero let p(x) = 0, that is

\frac{1}{4} x - 3 = 0 ( add 3 to both sides )

\frac{1}{4} x = 3 ( multiply both sides by 4 )

x = 12 ← zero of p(x)

3 0
3 years ago
Elenas aunt bought her a $150 savings bond when she was born.When elena is 20 years old,yhe bond will have earned 105% in intere
steposvetlana [31]

Answer:

$307.5.

Step-by-step explanation:

We have been given that Elena's aunt bought her a $150 savings bond when she was born.When Elena is 20 years old, the bond will have earned 105% in interest.  

To find bond's value after 20 years we will add 105% of 150 to 150.

\text{Bond's value after 20 years}=150+(\frac{105}{100}\times 150)

\text{Bond's value after 20 years}=150+(1.05\times 150)

\text{Bond's value after 20 years}=150+157.5

\text{Bond's value after 20 years}=307.5

Therefore, the bond will be worth $307.5, when Elena will be 20 years old.

3 0
3 years ago
1 Ann is traveling by bus to see a friend who moved away from her neighborhood. She
Readme [11.4K]

Answer:

options are not correct

8 0
3 years ago
If you rolled a 6-sided dice, what is the probability of rolling a even number?
Rus_ich [418]
The probability of getting an even number would be 1/2 as 2,4 and 6 are even.
5 0
3 years ago
Read 2 more answers
Other questions:
  • What's the gcf of 64 and 48
    14·1 answer
  • What is the slope of segment BC?
    12·2 answers
  • Silicon wafers are scored and then broken into the many small microchips that will he mounted into circuits. Two breaking method
    13·1 answer
  • Ivanna deposits $600 into an account that pays simple interest at a rate of 6% per year. How much interest will she be paid in t
    9·1 answer
  • 8. The difference between two numbers is 14. If 1/3of the larger number is subtracted from the smaller number, the
    12·1 answer
  • A student needs to earn 80 points on the test in order to keep an A grade for the semester. Write an equation that represents th
    5·1 answer
  • Find the missing coefficient.<br><br> -<br> y2 − [-5y − y(-7y − 9)] − [-y (15y + 4)] = 0
    7·2 answers
  • X2+2x-35<br> How can you simplify 2+48-21
    14·1 answer
  • The centre of this circle is marked with a cross (*).
    15·1 answer
  • 1/2 + 3/4<br> write answer as a fraction
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!