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3 years ago

5. Sally is shopping for diapers and sees a box with 216 diapers for $39.98 and a box with 88

Mathematics

1 answer:

Leya [2.2K]3 years ago

4 0

Answer:

The option with the best deal is 216 diapers for $39.98

Step-by-step explanation:

Sally is shoping for diapers

Sally first sees a box which contains 216 diapers at $39.98

She also sees a second box with 88 diapers for $24.99

To know which option that has the best deal for diapers we have to calculate the amount of 1 diapers in each of the boxes

Box 1

216 diapers= $39.98

1 diaper= x

Cross multiply

216x= $39.98

x= 39.98/216

= 0.19 cents for 1 diapers

Box 2

88 diapers= $24.99

1 diaper= x

Cross multiply

88x= $24.99

x= 24.99/88

= 0.28 cents for 1 diaper

Hence the option with the best deal is 216 diapers for $39.98, this is because it is more cheaper.

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Times for a surgical procedure are normally distributed. There are two methods. Method A has a mean of 33 minutes and a standard

lilavasa [31]

Answer:

Method A.

Step-by-step explanation:

For solving this question we need to find out the z-scores for both methods,

Since, the z-score formula is,

$z=\frac{x-\mu}{\sigma}$

Where, $\mu$ is mean,

$\sigma$ is standard deviation,

Given,

For method A,

$\mu = 33$

$\sigma=8$

Thus, the z score for 34 is,

$z_1=\frac{34-33}{8}=0.125$

While, for method B,

$\mu = 37$

$\sigma = 4$

Thus, the z score for 34 is,

$z_2=\frac{34-37}{4}=-0.75$ ,

Since, $z_1 > z_2$

Hence, method A is preferred if the procedure must be completed within 34 minutes.

8 0

3 years ago

joey made an deposit into an account that earns 6% simple interest. after 3 years joey had earned 400$. how much was joey's init

Brums [2.3K]

I= prt
I=$400 (0.06) (3)
I= 72
The 6% was changed into a decimal (0.06)
So I multiplied 400 x 0.06 x 3
The 400 would be the principal amount the 6% would be the rate and the 3 would be the time

7 0

3 years ago

Where can the perpendicular bisectors of an acute triangle intersect?

lilavasa [31]

The answer is A. I only

8 0

3 years ago

Read 2 more answers

Please help how do i find the area of the shape?

Orlov [11]

Answer:

Do not listen to the other answer! Here is how you solve that.

Step-by-step explanation:

For the semicircle, here is the formula for area: $A= \frac{1}{2}(\pi r^2)$

For the triangle, here is the formula for area: $A=\frac{1}{2}(bh)$

Then, add.

So,

Triangle:

$A=\frac{1}{2}(9*12)$

$A=54$

Semicircle:

$A=\frac{1}{2}(\pi 6^2)$

$A=18\pi$

Your answer is $Area = 54 + 18\pi$

6 0

3 years ago

PLEASE HELP AND BE CORRECT

Sergio [31]

(b⁷/4⁵)⁻³

= (4⁵/b⁷)³

= 4¹⁵/b²¹

Therefore answer is option b

Must click thanks and mark brainliest

3 0

3 years ago