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Finger [1]
3 years ago
5

Pencils that were selling at three for 25 cents are now on sale at five for 29 cents. How much money, in cents, would you save b

y buying 60 pencils at the sale price
Mathematics
1 answer:
natita [175]3 years ago
7 0

Answer:

We would save $1.52 cents

Step-by-step explanation:

3 the pencil were at sale for 25 cent

1 pencil = 25 cent/3 =8.33 cent per one pencil

5 the pencil were at sale for 29 cent

1 pencil = 29 cent/5 =5.8 cent per one pencil

If we bought 60 pencil in group of 3 for 25 cent

=60/3= 20 pencil

25cents * 20 pencil = 500 cent per 60 pencil

If we bought 60 pencil in group of 5 for 29 cent

=60/5= 12 pencil

29cents * 12 pencil = 348 cent per 60 pencil

From the analysis, the 5 pencil for 29 cent is cheaper are we are going to save: 500-348= 152 cents

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2 years ago
3/4 W + 8 = 1/3 w – 7
Montano1993 [528]

Answer:

<h2>W = -36</h2>

Step-by-step explanation:

\dfrac{3}{4}W+8=\dfrac{1}{3}W-7\qquad\text{subtract 8 from both sides}\\\\\dfrac{3}{4}W+8-8=\dfrac{1}{3}W-7-8\\\\\dfrac{3}{4}W=\dfrac{1}{3}W-15\qquad\text{multiply both sides by}\ LCM(4,\ 3)=12\\\\12\!\!\!\!\!\diagup^3\cdot\dfrac{3}{4\!\!\!\!\diagup_1}W=12\!\!\!\!\!\diagup^4\cdot\dfrac{1}{3\!\!\!\!\diagup_1}W-(12)(15)\\\\(3)(3W)=(4)(1W)-180\\\\9W=4W-180\qquad\text{subtract}\ 4W\ \text{from both sides}\\\\9W-4W=4W-4W-180\\\\5W=-180\qquad\text{divide both sides by 5}\\\\\dfrac{5W}{5}=\dfrac{-180}{5}\\\\W=-36

7 0
2 years ago
How do you write the scientific notation of 230
MA_775_DIABLO [31]

230 is written as 2.3 × 10^2
6 0
3 years ago
Read 2 more answers
If the measure of angle<br> A = 55 degrees, b = 12,<br> and c= 7, find a.
Nikitich [7]
The answer probably is 55 otherwise I didn’t understand your question.
6 0
2 years ago
What is the solution to this system of equations? x 2 y = 4. 2 x minus 2 y = 5. (3, Negative 5 and one-half) (3, one-half) no so
Talja [164]

The solution of the equation is (3, 1/2).

<h2>We have to determine</h2>

What is the solution to this system of equations?

<h3>According to the question</h3>

The given system of the equation;

\rm x+2y=4\\&#10;\\&#10;2x-2y=5

<h3>The standard form for linear equations in two variables is;</h3>

\rm Ax+By = C

On comparing equation 1 and equation 2 with the standard form we get,

\rm a_1 = 1,\  b_1 = 2,\  c_1=4\\&#10;\\&#10;a_2=2, \ b_2=-2, \ c_1 = 5

Here,

\rm \dfrac{a_1}{a_2}  = \dfrac{1}{2}\\&#10;\\&#10;\dfrac{b_1}{b_2} = \dfrac{-2}{2} = -1\\&#10;\\&#10;\dfrac{a_1}{a_2} \neq \dfrac{b_1}{b_2}

Here,  \rm \dfrac{a_1}{a_2} \neq \dfrac{b_1}{b_2} so, the given system of equations has a unique solution.

Then,

The solution of the equation is;

\rm x+2y=4\\\\2x-2y=5

On adding both the equation;

\rm x+2y+2x-2y=4+5\\&#10;\\&#10;3x=9\\&#10;\\&#10;x = \dfrac{9}{3}\\&#10;\\&#10;x = 3

Substitute the value of x in equation 1,

\rm x+2y=4\\&#10;\\&#10;3+2y = 4\\&#10;\\&#10;2y = 4-3\\&#10;\\&#10;2y=1\\&#10;\\&#10;y =\dfrac{1}{2}

Hence, the solution of the equation is (3, 1/2).

To know more about System of Equation click the link given below.

brainly.com/question/1568892

7 0
2 years ago
Read 2 more answers
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