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
lord [1]
3 years ago
7

Solve each system by substitution

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
4 0

Answer:

1. 2x + 3y =22

y=4

C. (5,4)

2. y=0

-5x - 2y = -15

B. (3,0)

Step-by-step explanation:

2x+(3)(4)=22

Step 1: Simplify both sides of the equation.

2x+12=22

Step 2: Subtract 12 from both sides.

2x+12−12=22−12

2x=10

Step 3: Divide both sides by 2.

2x/2 = 10/2

x=5

====================================================================

−5x−(2)(0)=−15

Step 1: Simplify both sides of the equation.

−5x−(2)(0)=−15

−5x+0=−15

(−5x)+(0)=−15(Combine Like Terms)

−5x=−15

−5x=−15

Step 2: Divide both sides by -5.

−5x/−5 = −15/−5

x=3

You might be interested in
Rectangular prism has a volume of 500 in.³ and the area of the base is 25 in.² what is the height of the rectangular prism
Evgesh-ka [11]

Answer:

20 in

Step-by-step explanation:

Vol. = Bh    where B  is the area of the base and h is the height of the prism

500 = 25h

h = 20 in

3 0
3 years ago
Hard math question please dont paste a link
const2013 [10]

Answer:

3x-1

Step-by-step explanation:

If you need an explanation let me know

Please mark as brainliest

6 0
3 years ago
16 is 20% of what number?
ehidna [41]

Answer:

80

Step-by-step explanation:

80 * 20% = 16

then 16 is 20% of 80

4 0
3 years ago
Read 2 more answers
How long will it take you to ski a distance of 36 at a speed of 3 miles per 30 minutes
Sonja [21]
It will take you 6 hours
5 0
3 years ago
Read 2 more answers
Brittany and Natalie, start cycling together from their home to school, which is 14.4 miles away. Natalie takes 40 minutes to re
prohojiy [21]

Answer:

7.2

Step-by-step explanation:

1. Natalie needed 40 minutes to get to school. In hours 40 minutes is 40/60= 2/3 hour (because there are 60 minutes in an hour). so her speed is 14.4/(2/3)= 14.4*3/2= 21.6 mph.

2. Britany needed 40+20= 60 min. 60 min= 1 hour. so she needed 1 hour her speed is 14,4/1= 14.4mph

3. The difference 21.6-14.4=7.2 is the answer .

3 0
3 years ago
Other questions:
  • A ceral box is 3 inches wide 8 inches long and 14 inches high whatbis the surface area of a cardboard?
    7·1 answer
  • A sweater is marked down from an original price of $45 to $33.75. By what percent has the original price of the sweater been mar
    15·2 answers
  • What is 6829 km expressed in scientific notation?
    13·2 answers
  • What is 0.08333333333 as a fraction?
    9·1 answer
  • Need to know if I got the correct answer for #29. If it’s wrong can you help me solve it please and thank you.
    15·1 answer
  • The amount of time it takes Isabella to wait for the bus is continuous and uniformly distributed between 3 minutes and 15 minute
    6·1 answer
  • Eric is designing a logo for his company. The logo is a rectangle with a length twice as long as the width. The logo is designed
    8·1 answer
  • Solve: 2 In 3 = In(x-4)
    9·1 answer
  • Pls we only need part B to pass this subject
    7·2 answers
  • How would you figure out how many samples of cookie dough can be given
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!