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Darina [25.2K]
3 years ago
10

Solve: 2x+1-14x=-71 This is for 7th grade mathematics. Please help! I need this now!

Mathematics
1 answer:
S_A_V [24]3 years ago
8 0

Answer:

The solution is x=6

Step-by-step explanation:

The given equation is 2x+1-14x=-71


We group like terms to obtain;


2x-14x=-71-1


We now simplify to get;


-12x=-72


We divide both sides of the equation by -12 to get;

\frac{-12x}{-12}=\frac{-72}{-12}


We cancel out the common factors to get;


x=\frac{72}{12}


This implies that


x=\frac{12\times 6}{12}


x=6




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Hamburger sells 3 pounds for six dollars if Samantha 510 pounds of hamburger how much will she pay
Lina20 [59]
I believe you meant to say that if Samantha bought 510 pounds of hamburger, how much will she pay?
 
Now from the information we already have, we know that 3 pounds of hamburger will cost 6 dollars. 

The next thing we need to know is how much one pound of hamburger will cost. This will help us calculate  how much the rest will cost.

we now form an equation to assist us.
3 = 6
1= x

(where x represents the unknown price of one pound of hamburger)

Now we must cross-multiply:

3 * x = 6 x 1

3x = 6 

x = 6/3

x = 2

therefore one pound of hamburger costs 2 dollars.

Now, If one pound costs 2 dollars, how about 510 pounds?

We simply multiply:  510 x 2 = 1,020

Therefore  Samantha will pay 1, 020 dollars for 510 pounds of hamburger.






5 0
3 years ago
Answer correctly and fast to get brainliest! Tony bought a sweatshirt with an original price of $48, and he then used a coupon f
storchak [24]

Answer: If it's something like who got the better deal then Tony did.

Step-by-step explanation: The reason I say that is the fact that the 20% off made the sweatshirt $38.40 cause $9.60 was taken off!

3 0
3 years ago
What is the volume of a square pyramid if the perimeter of the base is 44 in and the height is 19 in.? Round to the nearest tent
Olin [163]

Answer:

766.3

Step-by-step explanation:

8 0
2 years ago
Question 1 of 15<br> Solve 18x+62 12x+18.<br> A. x ≥ 4<br> B. x≤ 4<br> C. x≤2<br> D. x ≥ 2
Alborosie

Answer:

18+62=80x

12+18=30x

x=80÷30=2

x>2

4 0
2 years ago
PLEASE HELP I’LL REWARD BRAINIEST
Anuta_ua [19.1K]

Answer:

Start with y=mx+b since it is perpindicular to the slope of -3/4 the new slope is 3/4. so now we have m=4/3 next we subsitute known values in (0,-1). We multiply 0 by 3 next we have -1=0+b so be has to be -1 so your awnser is

y=4/3-1

4 0
3 years ago
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