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
Bond [772]
4 years ago
13

Which equations are related equations to x + 4 = 15?

Mathematics
2 answers:
natulia [17]4 years ago
8 0
Well c is the same exact problem but D could be it to because it easier to solve for x 
krek1111 [17]4 years ago
7 0

Answer:

B

Step-by-step explanation:

Hi, remember that when we have an equation the important thing is to know the value of the unknown value, in this case is "x"

So the best answer to this is B

because when you substract -4 in both sides of the equation you obtainx+4-4=15-4

x=15-4

D could also be right but there´s no sense in that equation because as I told you we want to know the value of the unknown , and 4 is not an unknown value

You might be interested in
I'm so confused. This question seems contradicting, and need an explanation.
Lerok [7]

Answer:

1/2 or 0.5 dollars per kg of apples

The first thing to do is to find out how much a kg of apples sells for, since the question is only asking for the selling amount of a single kg. Nothing else. Each trip gets 300 dollars and delivers fifty packs. So each Pack, or P = 300/50, or P = 6 dollars

And each pack contains 12 kg of apples, so if P = 6 dollars and P = 12 kg of apples, then 6 dollars = 12 kg of apples

then 1 kg apples = 6/12, or 1/2.

So a single Kg of apples cost 0.5 dollars

6 0
2 years ago
What would (10x^2+8xy-20)-(2x^2+3xy+5) equal??
SSSSS [86.1K]
<h2><em><u>Hope</u></em><em><u> </u></em><em><u>t</u></em><em><u>h</u></em><em><u>i</u></em><em><u>s</u></em><em><u> </u></em><em><u>will</u></em><em><u> </u></em><em><u>help</u></em><em><u> </u></em><em><u>u</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em></h2>

5 0
3 years ago
Sarah bought 7 more songs than Betsy.If Sarah bought 21 songs from Apple Music, how many songs did Betsy buy?
kipiarov [429]
21-7 = 14
Betsy buy 14
4 0
4 years ago
How much principle, to the nearest dollar, should you invest at 4 percent in order to have $3000 for a vacation to Europe in 3 y
KiRa [710]

Answer:

Principle should be $2,667

Step-by-step explanation:

We need $3000 for a vacation to Europe in 3 years.

Using amount formula,

A=P(1+r)^t

Where, P is principle (P=?)

A is amount (A=3000)

r is rate of interest (r=0.04)

t is time (t=3)

Substitute the values into formula and solve for P

3000=P(1+0.04)^3

3000=P(1.04)^3

P=\frac{3000}{1.04^3}

P=2666.98

P\approx \$2667

Hence, Principle should be $2,667

4 0
3 years ago
12x^2+20=50 what is x
LenaWriter [7]

Answer: x=1.5811389999999999 , or 1.59

Step-by-step explanation:

First, Subtract 20 from both sides.

      12x2+20−20=50−20

      12x2=30

 Then, Divide both sides by 12:

12x^2/12 = 30/12

⇒ you get : x^2 = 5/2

After, Take square root.

x= ± √ 5/2

Finally you answer is going to be =1.5811389999999999 OR, 1.59

* Hopefully this helps:) Mark me the brainliest:)

<em>∞ 234483279c20∞</em>

7 0
3 years ago
Other questions:
  • Also another answer choice, D 9.9
    12·1 answer
  • (5 1/4) divided by (-2 1/4) need HELP tnx
    5·2 answers
  • What is the answer???
    5·1 answer
  • A chain fits tightly around two gears as shown. What is the radius of the smaller gear? Round your answer to the nearest tenth.
    7·2 answers
  • What is the answer to 1÷⅔×(-8)×3÷(-½)
    13·2 answers
  • PLS rlly help match like terms
    7·1 answer
  • What would you expect to happen if a pay rate of $13.50 per hour were offered?
    14·1 answer
  • Please help asap!!! It’s late!
    13·2 answers
  • Diego estimated that he has 200 rocks in his collection. He counted them and he has 160 rocks. What is his percent error?
    15·1 answer
  • Help me pls it won't let me unselect the one I clicked on
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!