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Minchanka [31]
3 years ago
13

Natalie buys a cooper wire that is 3 feet long. The cost of the wire is $1.25 per foot, including tax. What is the total cost, i

n dollars, of Natalie's wire.
Mathematics
1 answer:
Mnenie [13.5K]3 years ago
5 0

Answer:

$3.75

Step-by-step explanation:

Given:

Natalie buys a cooper wire that is 3 feet long.

The cost of the wire is $1.25 per foot.

Question asked:

What is the total cost, in dollars, of Natalie's wire?

Solution:

<u>By unitary method:</u>

Total length of wire = 3 feet

Each foot of wire cost = $1.25

3 feet of wire cost = $1.25 \times 3 = $3.75

Thus, total cost of wire is $3.75

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I have no clue what the answer is​
spin [16.1K]

Answer:

Second option is the correct answer.

Step-by-step explanation:

\frac{2}{3} x - 5 > 3 \\  \\  \frac{2}{3} x  >  5 + 3\\  \\  \frac{2}{3} x  >  8 \\  \\ x > 8 \times  \frac{3}{2}  \\  \\ x > 12

7 0
2 years ago
How to solve this problem
Agata [3.3K]
So first, you have to get two of the same variables to cancel out. Let's do this for x. In order for the x's to cancel out, we could multiply the bottom problem by 2.
(2) 3x-6y=24
After multiplying all the numbers by 2, you get the equation 6x-12y=48
The set of equations is now
-6x+2y=12
6x-12y=48
Now you can add them. The x variables cancel out, so you are left with the y variable.
2y+-12y=-10y and 12+48=60
Then you would divide 60 by -10 to get y=-6.
You would plug the answer for y into one of the original equations, lets do the top one. -6x+2y=12 becomes -6x+2(-6)=12
You'd multiply the 2 and -6 to get -12 so the equation is
-6x-12=12
The negative 12 turn positive and you add to both sides to get the -6x alone.
-6x-12=12
+12=12
-6x=24
Then divide 24 by -6
X=4

(-4,-6) is your final answer.
7 0
3 years ago
Rewrite this formula to convert Fahrenheit to Celsius. F= 9/5C + 35
iVinArrow [24]

Answer:

\huge \purple { \boxed{ C = \frac{5}{9} ( F  - 32)}}

Step-by-step explanation:

I the given problem, there should be 32 in place of 35.

F =  \frac{9}{5}  C + 32 \\ F  - 32=  \frac{9}{5}  C \\ 5( F  - 32)=  9  C \\  \frac{5}{9} ( F  - 32)=C \\  \\ \huge \red{ \boxed{ C = \frac{5}{9} ( F  - 32)}}

7 0
3 years ago
Please help me thank you
ahrayia [7]

Answer:

(2,3)

Step-by-step Explanation:

2x - y = 1

-y = -2x + 1

y = 2x - 1

4x + y = 11

4x + 2x -1 = 11

6x = 12

x=2

y=2x-1

y=2(2)-1

y=3

4 0
3 years ago
The prodoct of 4 and number plus 17 is 5
vichka [17]

Answer:

-3

Step-by-step explanation:

The product (the result of a multiplication) of 4 and a number. Let x be the unknown number:

4 · x = 4x

Plus 17:

4x + 17

Is 5:

4x + 17 = 5

Solve:

4x = 5 - 17

4x = -12

x = -12 ÷ 4

x = -3

3 0
3 years ago
Read 2 more answers
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