Answer:
$ 2.167
<h3>
Step-by-step explanation:</h3>
Let the cost of a pencil be x and that of a pen be y.
A pen costs <u>twice</u> as much as a pencil.
==> cost of a pen = 2 × cost of a pencil
==> <u>y = 2x</u>
Their total cost is $6.50
==> x + y = $6.50
<em>since</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>2</em><em>x</em><em>,</em><em> </em><em>substituting</em><em> </em><em>y</em><em> </em><em>for</em><em> </em><em>2</em><em>x</em>
==> x + 2x = 6.50
==> 3x = 6.50
<em>dividing</em><em> </em><em>both</em><em> </em><em>sides</em><em> </em><em>by</em><em> </em><em>3</em>
==> x = 2.16
As per our assumption, x is the cost of one pencil.
Therefore, the cost of a pencil is <u>$2.16</u><u>7</u>
Answer:
2 or 6
Step-by-step explanation:
Please mark me brainleist
Answer:
1 is 136, 2 is 44, annd 4 is 44
Step-by-step explanation:
Number of flower boxes bought by Mrs. Cyan is 15
<em><u>Solution:</u></em>
Given that Mrs. Cyan paid 105$ for flower boxes
Each flower box cost 7.00$
To find: Number of flower boxes bought by Mrs. Cyan
Number of flower boxes bought by Mrs. Cyan can be found by dividing the total amount paid by price of 1 flower box
From given information,
Total amount paid = $ 105
Cost of 1 flower box = $ 7.00
<em><u>Number of flower boxes bought by Mrs. Cyan:</u></em>
Substituting the given values we get,
Thus 15 flower boxes are bought by Mrs Cyan
Let the constant stretch factor be x
then
3x + 4x + 2x = 72 Add the left side.
9x = 72 Divide by 9
x = 72/9
x = 8
Therefore the sides are
8*3 = 24
8*4 = 32
8*2 = 16
Total = 72 which checks.