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ASHA 777 [7]
3 years ago
12

A local bookstore has a sale on all their paperbacks giving a 10% discount. You also received a coupon in the mail for $4 off yo

ur purchase. If you buy 2 paperbacks at $8 each, is it less expensive for you to apply the discount before the coupon or after the coupon?
Mathematics
1 answer:
oee [108]3 years ago
3 0

Answer:

Discount before the Coupon

Step-by-step explanation:

The cost of two paperbacks at $8 each=2 X $8 =$16

First, we determine for the case in which the coupon is applied first.

If the $4 Coupon is applied,

Cost=$16-$4 = $12

If the 10% discount is further applied,

Amount to be paid = $12-(10% of $12) =$12-1.2= $10.8

However if the discount is applied first,

Book Cost=$16-(10% of $16)=16-1.6=14.4

If the Coupon is then applied,

Amount to be paid= $(14.4-4)=$10.4

Since $10.4 is less than $10.8, we conclude therefore that it is less expensive to apply the discount first.

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keisha's grandmother gave her a doll that paid $6 for 60 years ago. the doll's current value is $96. its value doubles every 15
kodGreya [7K]
The answer is $1536 I believe
6 0
2 years ago
1/4×3/2×8/9 What is the Simplified fraction?
VARVARA [1.3K]

Answer:

1/3

Step-by-step explanation:

1/4×3/2×8/9

Rewriting

8/4 * 3/9 *1/2

Simplify

2 * 1/3 * 1/2

Rewriting

2/2 * 1/3

1 * 1/3

1/3

8 0
3 years ago
Read 2 more answers
Help my plizzz no andestend​
777dan777 [17]

Answer:

1: 2/5, 40%

2: 7/10, 70%

3: 13/20, 65%

4: 21/25, 84%

5: 4/5, 80%

6: 2/10 or 1/5, 20%

8 0
3 years ago
What number is represented by −3x²+√2x+1/2 when x=√2?
Mila [183]

Answer:

at x = \sqrt{2},  -3x^{2} + \sqrt{2}x + \frac{1}{2} = -3.5

Step-by-step explanation:

The given equation is -3x^{2} + \sqrt{2}x + \frac{1}{2}

Now, substitute the value of x = \sqrt{2} in the above equation.

The given equation simplifies to,

-3(\sqrt{2})^{2} + (\sqrt{2})(\sqrt{2}) + \frac{1}{2}

now, \sqrt{2} . \sqrt{2}  = 2, \textrm{and} (\sqrt{2} )^{2} = 2

So, the equation become

-3(2) + 2 + (1/2) = -6 + 2 + \frac{1}{2}   = -4 + \frac{1}{2} = \frac{-8 + 1}{2}  = \frac{-7}{2}  

= -3.5

So, at x = \sqrt{2},  -3x^{2} + \sqrt{2}x + \frac{1}{2} = -3.5

6 0
2 years ago
Please add am explanation.
iren2701 [21]

Answer:

5(k + 1) and 5k + 5

Step-by-step explanation:

The easiest way to do this is to pick any number to substitute in for the variable <em>k </em>for ALL of the expressions, and find the expressions that equal the same as the first expression being compared.

For example, lets just make <em>k </em>equal 1 to make things easy. Plug 1 into <em>k</em> into the first expression. 2k + 2 + k + 3 + 2k → 2(1) + 2 + (1) + 3 + 2(1) = 10.

Now we do the same to the rest of the expressions and see which ones ALSO equal 10.

5(k + 1) → 5(1 + 1) = 10

5k + 5 → 5(1) + 5 = 10

5 + k^5 → 5 + (1)^5 = 6

5k^5 → 5(1)^5 = 5

5 0
2 years ago
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