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Hitman42 [59]
3 years ago
8

Nine lollies cost less then $10 while ten lollies cost more than $11. How much does each lolly cost?

Mathematics
1 answer:
denis-greek [22]3 years ago
6 0
There is no answer to that. 11/10 = 1.1, and 10/9 = 1.1
Increasing the price of a lolly would mean that the cost would go above $10 and $11, whilst decreasing the price would mean both go below $10 and $11
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What is the sum of all positive integers less than 300 which are divisible by 3
drek231 [11]

Answer:

14,850

Step-by-step explanation:

You need the sum of

3 + 6 + 9 + 12 + ... + 294 + 297

Factor out a 3 from the sum

3 + 6 + 9 + 12 + ... + 294 + 297 = 3(1 + 2 + 3 + 4 + ... + 98 + 99)

You need to add all integers from 1 to 99 and multiply by 3.

The sum of all consecutive integers from 1 to n is:

[n(n + 1)]/2

The sum of all consecutive integers from 1 to 99 is

[99(99 + 1)]/2

The sum you need is 3 * [99(99 + 1)]/2

3 + 6 + 9 + 12 + ... + 294 + 297 =

= 3 * [99(99 + 1)]/2

= 3 * [99(100)]/2

= 3 * 9900/2

= 14,850

4 0
2 years ago
Geraldo recently saw a newspaper ad for a new version of his laptop. the projected price is $400.00, and the laptop will be out
Tanya [424]

The amount he had to pay if he have to purchase a laptop today that is the same value as the one he saw in the ad is $ 390.24.

Given that:-

Price of the laptop after 1 year = $ 400.

Inflation rate = 2.5 %

We have to find the amount he had to pay if he have to purchase a laptop today that is the same value as the one he saw in the ad.

Let the price he had to pay be x.

Hence, we can write,

x + (x*(2.5)*1)/100 = 400

x(1 + 1/40) = 400

x(41/40) = 400

x = 400*40/41 = $ 16000/41 = $ 390.24.

To learn more about amount, here:-

brainly.com/question/8082054

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5 0
1 year ago
-6+8x=-38<br> What is the answer and explain how you got it step by step
Anarel [89]
-6 +8x = -38
8x = -32
x = -4
I did this by first adding 6 to both sides to get 8x by itself. I then divided by 8 to get x by itself. I remembered to use the - - + rule (Two negatives make a positive, a positive and a negative make a negative). Hope this helps!
3 0
3 years ago
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A parallelogram rotates about its center. At what angle of rotation will the image of the parallelogram coincide with its preima
zmey [24]
<span>The correct answer is option C. i.e. When a a parallelogram rotates about its center., then taking 180 degrees as the angle of rotation, the image of the parallelogram coincide with its preimage. Thus 180 degree rotation is the answer.</span>
8 0
3 years ago
Read 2 more answers
Which equation gives the number of 1/3 inches that are in 5/6inch?
Annette [7]

Answer:

2\frac{1}{2}

Step-by-step explanation:

Let

x ----> the number of 1/3 in that are in 5/6 in

To find out the number of 1/3 in that are in 5/6 in, divide 5/6 by 1/3

so

x=\frac{5}{6}:\frac{1}{3}

Multiply in cross

x=\frac{15}{6}

Convert to mixed number

\frac{15}{6}=\frac{12}{6}+\frac{3}{6}=2\frac{3}{6}=2\frac{1}{2}

5 0
3 years ago
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