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3 years ago

10

Level B

1 answer:

Darya [45]3 years ago

5 0

The number has 2 digits - let's call them x and y. The positive difference between the two combinations (lowest-highest and highest-lowest) is always equal to the positive difference of x and y, multiplied by 9.

For example:

76 and 67: 76 - 67 = 9 and ((7-6)*9) = 1*9 = 9
73 and 37: 73 - 37 = 36 and ((7-3)*9) = 4*9 = 36

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Big Bob’s Pizza is having a special on pizza and is offering two different choices:

Anna71 [15]

Answer:

The Choice N#1 will give more pizza for your money

Step-by-step explanation:

step 1

Find the area of one slice Choice #1

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=22/2=11\ in$ ----> the radius is half the diameter

assume

$\pi =3.14$

The area of one slice is equal to

$A=(1/8)\pi r^{2}$

substitute

$A=(1/8)(3.14)(11)^{2}$

$A=47.4925\ in^{2}$

Divide the cost by the area

$4.95/47.4925=0.10\frac{\$}{in^{2}}$

step 2

Find the area of the entire personal pizza Choice # 2

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=6/2=3\ in$ ----> the radius is half the diameter

assume

$\pi =3.14$

substitute

$A=(3.14)(3)^{2}$

$A=28.26\ in^{2}$

Divide the cost by the area

$3.75/28.26=0.13\frac{\$}{in^{2}}$

therefore

The Choice N#1 will give more pizza for your money

5 0

4 years ago

A stack of logs has 22 logs on the bottom layer. Each subsequent layer has 4 fewer logs than the previous layer. If the top laye

Paraphin [41]

Answer:

88

Step-by-step explanation:

7 0

2 years ago

The original price P of an item less a discount of 20% ?

Step2247 [10]

You would calculate the price by multiplying the original price by 0.80
P(0.80)

7 0

3 years ago

Read 2 more answers

Round to the nearest whole number, then add:<br> 4.208<br><br> +2.482

user100 [1]

Answer:

6.482

Step-by-step

4.208 rounds down to 4

4+2.482

6.482

3 0

3 years ago

Read 2 more answers

How do you do this 20 pts.

Elena L [17]

Answer:

a would be 12

Step-by-step explanation:

because there are 5 1's so you would subtract 5 from 65 and get 60 and divide 60 by 5 and get 12

Hope this helps!!! Mark me as brainiest!!!!! :)

8 0

3 years ago

Read 2 more answers