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
OleMash [197]
3 years ago
5

-2.3x + 4.2x = 15.01 Solve for x

Mathematics
2 answers:
Neko [114]3 years ago
6 0

-2.3x + 4.2x = 15.01         original equation

1.9x = 15.01                    combine like terms

1.9x/1.9 = 15.01/1.9        divide both sides by 1.9 to get x alone

<u>x = 7.9</u>                           simplify

CHECK YOUR WORK:

<u>plug in the solution to x into the original equation like so:</u>

-2.3(7.9) + 4.2(7.9) = 15.01        original equation w/ substitute for x

-18.17 + 33.18 = 15.01                simplify multiplication

<u>15.01 = 15.01</u>                             simplify addition

<u>When you get an answer like this, you know that the solution to x that you found is correct.</u>

VashaNatasha [74]3 years ago
4 0

Answer:

x = 7.9

Step-by-step explanation:

-2.3x + 4.2x = 15.01

combine like terms

1.9x = 15.01

divide both sides by 1.9

x = 7.9

You might be interested in
If you are selling bag of candy would you want ti sell the candy in ounces or pounds? Explain.
7nadin3 [17]
You would want to sell the bag of candy in ounces, unless you have way too much candy.
8 0
3 years ago
Read 2 more answers
Help asap please I really need it
Svetlanka [38]
The answer would be B. About 92 cubic feet. Have a good rest of your day.
3 0
3 years ago
People use water to​ cook, clean, and drink every day. An estimate of 19.4​% of the water used each day is for drinking. If a fa
Ronch [10]

Answer:

86.7 gallons

Step-by-step explanation:

I literally went decimal by decimal to find it. So theres no way it's wrong

4 0
3 years ago
One gram of protein contains 4 calories. One gram of fat contains 9 calories. A snack has 60 calories from p grams of protein an
nikitadnepr [17]

Answer:

1.5 grams of protein.

Step-by-step explanation:

The equation that represents the relationship between protein and fat is as follows :

4p + 9f = 60 ....(1)

We need to find the grams of protein are there if there are 6 grams of fat in the snack.

Put f = 6 in the above equation (1).

4p + 9(6)= 60

4p + 54 = 60

Subtract 54 to the both sides,

4p + 54-54 = 60-54

4p = 6

⇒ p = 1.5 grams

It means the snack contains 1.5 grams of protein.

4 0
3 years ago
Worth 10 points please help me ASAP!
Y_Kistochka [10]

Answer:

(-1,-1)

Step-by-step explanation:

If you multiply the x and y points of A, (-3,-3), by 1/3 then you find: (-1,-1).

6 0
3 years ago
Other questions:
  • )Simplify the following expression: (−1)(−7)(4)
    9·1 answer
  • Round 101.5 to one significant figure
    7·1 answer
  • Ramona spend 8 hours making picture frames if each picture frame takes her 1/4 of hour to make how many picture frame does Ramon
    6·1 answer
  • If f(x) = 2x - 7, what is the equation for f(x)<br> URGENT PLEASE ANSWER!<br> *see attachment*
    6·1 answer
  • Madelyn's car used 6 gallons of gas to drive 126 miles. At what rate does her car use
    6·1 answer
  • Find the sum.<br> io +<br> 10<br> 5
    13·1 answer
  • if the probability of drawing a red card from a box is 3/8, what are the odds against drawing a red card from the box
    14·1 answer
  • What is the slope of the line?
    10·1 answer
  • If mAB = 30° and mCD = 110°, find mLE.
    11·1 answer
  • Tip is calculated on the subtotal of a bill true or false ?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!