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
AVprozaik [17]
3 years ago
7

What is y = 5 - 2x 3x - 2y = 4

Mathematics
1 answer:
timofeeve [1]3 years ago
5 0

Answer:

x = 2

y = 1

Step-by-step explanation:

y = 5 - 2x (1)

3x - 2y = 4 (2)

From (1), substitute in (2)

3x - 2(5 - 2x) = 4

3x - 10 + 4x = 4

Collecting like terms

3x + 4x = 4 + 10

7x = 14

x = 2

Since x = 2

Therefore

y = 5 - 2x

y = 5 - 2(2)

y = 5 - 4

y = 1

You might be interested in
A fence is 4 feet tall. The fence has a shadow that is 5 feet long. Paul is 6 feet tall, and he is standing next to the fence. U
adoni [48]

Answer:

7.5 feet

Step-by-step explanation:

4/5=6/x

cross multiply

4x=30

x=7.5

5 0
3 years ago
Read 2 more answers
A car traveled 150 miles on 5 gallons of gas. Find the unit rate.
Sauron [17]

Answer:

30m per gallon

Step-by-step explanation:

150m/5g= 30m/g

8 0
3 years ago
Bobby catches 8 passes in 3 football games. At this rate how many passes dose he catch in 15 games?expine
stepan [7]

Answer: 40

Step-by-step explanation:

I can see the answer is 40, but let's try to figure out how to do it.

I like to use the rule of 3. Let's put the number of passes on the left side and the number of games on the right side.

\frac{8}{x}=\frac{3}{15}

''x'' represents the number of passes in 15 games.

Solve for x;

x=\frac{15*8}{3}\\ x=\frac{120}{3}\\ x=40

8 0
3 years ago
Simplify the expression to one number using order of operations:
geniusboy [140]
<h2><u>COMBINED OPERATIONS</u></h2><h3>Exercise</h3>

First, let's solve the subtraction (in parentheses):

\mathsf{\dfrac{-8\left(2-6\right)}{2}}

\mathsf{\dfrac{-8(-4)}{2}}

Now, let's solve the multiplication. Remember: in multiplication, two negative numbers will give a positive number:

\mathsf{\dfrac{-8(-4)}{2}}

\mathsf{\dfrac{32}{2}}

Finally, let's solve the division:

\mathsf{\dfrac{32}{2} = 16}

<h3><u>Answer</u>: 16</h3>
5 0
3 years ago
How do you compare and contrast decimals, fractions, and percents
Alisiya [41]
You would have to make them all one form that is the same, for example if you wanted to find out if 80%, 0.75, 1/2 are the same you would have to change them into the same form. If you wanted to make them all decimals it would be 0.08, 0.75, 0.5, if you wanted to make them all percents it would be 80%, 75%, 50%, you wanted them all of be a fraction it would be 4/5, 3/4, and 1/2. I hope explained this well and this helped :)
-Madi
6 0
3 years ago
Other questions:
  • Roni and Allie are mowing the grass at the soccer field. Roni has a riding lawn mower and can mow the field in 30 minutes. Allie
    9·2 answers
  • In the general equation of a line, if A = 0, what will the graph of the line look like?
    14·2 answers
  • How to find the centroid of a cone with radius r and height h?
    14·1 answer
  • A teacher bought 12 sheets of stickers to use on the homework of her students. Each sheet had 48 stickers. At the end of the yea
    5·1 answer
  • Please help with this question(it’s attached)! Urgent help! I will reward brainliest to the best/first answer. Thanks in advance
    5·1 answer
  • The space shuttle is accelerated off its launch pad to a velocity of 525 m/s in 18.0 seconds.
    6·1 answer
  • Please help I'm new at these and don't really understand 8 grade and up answers only
    10·1 answer
  • What is the square root
    13·1 answer
  • There are 6 red marbles, 5 green marbles, and 4 yellow marbles in a bag. If Joe picks 2
    12·1 answer
  • 1) 9n2 - 25<br> Please show work
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!