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joja [24]
3 years ago
8

What in the world is eighty plus forty

Mathematics
1 answer:
Maurinko [17]3 years ago
8 0

Answer:

120

Step-by-step explanation:

Add more detail if it is a different question

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GenaCL600 [577]
The total weight is 2 1/2 lbs

Rock A is 1/7 of the total weight....so it is 1/7 of 2 1/2 lbs..." of " means multiply

1/7 * 2 1/2 =
1/7 * 5/2 =
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7 0
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A certain basket contains 10 apples, 7 of which are red and 3 of which are green. if 3 different apples are to be selected
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The probability for getting a red apple is 70% and green apples is 30%.
So for getting three different apples is impossible since there are two types of apples. 
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3 years ago
Mike and Beatrice purchase a house for $200,000. If the equation V = 200,000(1.03)x represents the value of the house after x ye
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PLEASE HELP!!!!! How many 4-digit numbers divisible by 5, all of the digits of which are even, are there?
saul85 [17]

Answer:

I assume you know Arithmetic Progression .

so, we have to find the first and last 4-digit number divisible by 5

first = 1000 ,  last =  9990

we have a formula,   a_{n} = a + (n-1)d

here, a_{n} is the last 4-digit number divisible by 5.

n is the number of 4-digit even numbers divisible by 5

d is the common difference between the numbers, which is 10 in this case

a is the first 4-digit number divisible by 5

9990 = 1000 + (n-1)*10

899 = n-1

n = 900

Hence, there are 900 4-digit even numbers divisible by 5

7 0
2 years ago
The sum of -7.68 and it’s additive inverse is??
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The answer is 0. the additive inverse of a negative number is the same number but positive. to find the sum means to add them together. for example take 2 and -2. 2 is the additive inverse of -2. if you add 2+-2 the answer comes out to 0
4 0
3 years ago
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