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
natali 33 [55]
3 years ago
13

Tony is trying to find the solution of the system 2x - 4y +12 using elimination 3x + 4y = 48 He wrote these steps to solve the p

roblem on note cards, but they got mixed up.... can someone help me asap​
Mathematics
1 answer:
kobusy [5.1K]3 years ago
7 0

Answer: Solution: (12, 3)

Step-by-step explanation:

2x - 4y = 12

3x + 4y = 48

Add both equations

5x = 60

Divide both sides by 5

x = 12

We can use the value of x to find y

3x + 4y = 48

3 (12) + 4y = 48

36 + 4y = 48

Subtract 36 from both sides

4y = 12

Divide both sides by 4

y = 3

Solution: (12, 3)

You might be interested in
Endeye needs to split 1/5 of the dinner left over from last week to feed her 3 siblings. What fraction of the original dinner wi
aleksandr82 [10.1K]

Answer:

<u><em>They each had </em></u><u><em>1/20 of the original meal</em></u>

Step-by-step explanation:

<u><em>To begin, </em></u><u><em>there are 4 people</em></u><u><em>. Her siblings, and herself. She is </em></u><u><em>splitting the 1/5 leftover</em></u><u><em> to feed them. To do this, we simply </em></u><u><em>take 1/5 and put it into a fraction to get 0.2</em></u><u><em>. Next, we can </em></u><u><em>put 0.2 / 4 into a calculator</em></u><u><em> to get how much each person can get.</em></u>

<u><em>0.2 / 4 = 0.05.</em></u>

<u><em>Now, we need to </em></u><u><em>turn it into a fraction</em></u><u><em> to find out how much they had in fraction form of the original.</em></u>

<u><em>0.05 = 1/20</em></u>

<u><em>They each had </em></u><u><em>1/20 of the original meal</em></u>

3 0
2 years ago
Jeremy bought a $60 pair of sneakers on sale for 15% off. Then, he used a coupon that gave him an additional 10% off. Can Jeremy
stira [4]

Answer:

Jeremy find the cost of the sneakers by solving for the values of the 10% in dollars and subtracting the dollar amount from the cost of the sneaker

Step-by-step explanation:

Step one:

given data

cost of sneakers= $60

Required

the cost of the sneaker after the two discounts

Actually, the two percents given are the discount of the sale.

the first discount is

15%= 15/100*60

=0.15*60

=$9

The second is 10% coupon

10/100*60

=0.1*60

=$6

The total discounts = 9+6= $15

The cost of the sneakers= 60-15= $45

Jeremy find the cost of the sneakers by solving for the values of the 10% in dollars and subtracting the dollar amount from the cost of the sneaker

4 0
3 years ago
Raquel and Van live in two different cities. As part of a project, they each record the lowest prices for a gallon of gas at gas
jeyben [28]

Answer:

Step-by-step explanation:

Looking at the information given, the average or mean lowest prices and standard deviations for the two cities are given. The standard deviation is a measure of variability. It is used to determine how far the values in the data are from the mean. A lower standard deviation means that the values are closer to the mean. A higher standard deviation means that the values are farther from the mean.

Since 0.07 is lower than 0.23, the correct statement that is true about their gas-price data is

Raquel's data are most likely closer to $3.42 than Van's data are to $3.78.

3 0
3 years ago
Read 2 more answers
insects have 6 legs,and spiders have 8 legs.What is the least number of insects and the least number of spiders possible so that
iogann1982 [59]
By using LCF (Least common factor), the answer would be 24. If you count by sixes and eighteen, the first number they have the same is 24. 6,12,18,24
8,16,24
7 0
3 years ago
Read 2 more answers
Can everyone help me with this please
Harrizon [31]
For a chad drives 56 miles per hour. you got this by dividing 168 by 3.
for b it takes chad 12 hours and you got this by dividing 672 by 56.
for c, chads car gets 28 miles per gallon you got this by dividing 308 by 11
for d, chads car uses uses 24 gallons to travel 672 miles an you got this by dividing 672 by 28. hope this is right.:)

7 0
3 years ago
Other questions:
  • What is the answer to this?
    13·2 answers
  • Add 5 to me then divide by 7 then add 12 then subtract 7 you get 10
    14·1 answer
  • Multiply 3/5 x 35 I don’t know!
    7·2 answers
  • What is the solution to question number 33?
    9·1 answer
  • 1. <br>Solve the quadratic equation using quadratic formula :<br><br>x2 – 7x + 12 = 0​
    5·1 answer
  • a triangle with area 28 square inches has a height that is twi less than four times the base. find the base and the height if th
    13·1 answer
  • Choose a system of equations with the same solution as the following system:
    15·2 answers
  • What relationship is shown in the graph
    8·2 answers
  • Mrs. Speas has $138 in her bank account during Week #1. At the end of each week, she deposits $55 into her bank account. What is
    14·2 answers
  • Solve for x in the diagram below.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!