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Volgvan
3 years ago
10

A local Dot Dress Shop is selling a suit for $99. Due to changing styles the 1st markdown was 8% and the second markdown 25%. Th

e suit still did not sell so a final markdown of 10% was taken. The sale price is currently A. $68.31 B.$86.31 C. $61.84 D. $61.48 or E. none of these
Mathematics
1 answer:
Anit [1.1K]3 years ago
8 0
The sale price = 99(1 - 0.1)(1 - 0.25)(1 - 0.08) = 99 * 0.9 * 0.75 * 0.92 = $61.48
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Keisha bought cups of coffee and bagels for the people in her office. Each bagel cost $2 and each cup of coffee cost $1.50. Keis
-Dominant- [34]

Answer:

The number of bagels is <u>11</u> and the cups of coffee is <u>12</u>.

Step-by-step explanation:

Given:

Keisha bought cups of coffee and bagels for the people in her office. Each bagel cost $2 and each cup of coffee cost $1.50.

Keisha spent a total of $40 to buy 23 items.

Now, to find the number of cups of bagels and coffee.

As given in question:

Let x represent the number of bagels.

And y represent the number of cups of coffee.

So, the total number of items:

x+y=23

x=23-y    ......(1)

Now, the total money spent on items:

2x+1.50y=40

Substituting the value of x from equation (1):

2(23-y)+1.50y=40

46-2y+1.50y=40

46-0.50y=40

<em>Subtracting both sides by 46 we get:</em>

-0.50y=-6

<em>Dividing both sides by -0.50 we get:</em>

y=12.

<em>The number of cups of coffee = 12.</em>

Now, to get the number of bagel we substitute the value of y in equation (1):

x=23-y

x=23-12

x=11.

<em>The number of bagels = 11.</em>

Therefore, the number of bagels is 11 and the cups of coffee is 12.

6 0
3 years ago
The radius of a spherical ball is measured at r = 25 cm. Estimate the maximum error in the volume and surface area if r is accur
natulia [17]

Answer:

Volume = 2384.582 cm^3

Surface Area = 189.626 cm^2

Step-by-step explanation:

With the accuracy of r within 0.6 cm minimum & maximum values are 25-0.3 and 25+0.3 respectively.

Taking r = 25 cm

Volume = (4/3)*Pi*R3 = 65449.847

Surface Area = 4*Pi*R2 = 7853.982

The minimum possible values for Volume and surface area would be:

if r = 24.7 cm

Volume = (4/3)*Pi*R3 = 63121.814 cm^3

Surface Area = 4*Pi*R2 = 7666.617 cm^2

The maximum possible values for Volume and surface area would be:

if r = 25.3 cm

Volume = (4/3)*Pi*R3 = 67834.429 cm^3

Surface Area = 4*Pi*R2 = 8043.608 cm^2

Error from Minimum values:

Volume = 2328.033 cm^3

Surface Area = 187.365 cm^2

Error from Maximum values:

Volume = 2384.582 cm^3

Surface Area = 189.626 cm^2

3 0
3 years ago
What is the answer and what should I write for my explanation? Can you please show me all the work?
Stells [14]

Answer:

sorry i didn't get it

Step-by-step explanation:

7 0
3 years ago
If one stamp cost $.45 what does a roll of 125 stamps cost in cents? What is the amount in dollars and cents
Rufina [12.5K]
The cost of the roll = 125 * 45 = 5625 cents

5625 / 100 = 56.25 $
5 0
2 years ago
Read 2 more answers
Vincent borrowed $300 for a new TV. If he promised to repay the loan at a simple annual interest rate of 2%, how much will he ow
Jobisdone [24]
Hi there
The formula is
A=p (1+rt)
A ?
P 300
R 0.02
T 3 years
So
A=300×(1+0.02×3)
A=318

Hope it helps
5 0
3 years ago
Read 2 more answers
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