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solmaris [256]
2 years ago
14

Question 7 (1 point)

Mathematics
1 answer:
Marrrta [24]2 years ago
3 0
Answer:
1.5 multiplied by 67 equals 100.5 which is at least one hundred there fore it’s the bare minimum

Hope this helps :)
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Sonia finds a 3/4- full bag of chips . she eats the rest of the chips in the bag. Then she opens another small bag of chips. Son
frutty [35]
The fraction can be write as 7/8.

3/4=6/8
6/8+1/8= 7/8
4 0
3 years ago
What is the quotient of7^-1 / 7^-2
e-lub [12.9K]

Answer:

7

Step-by-step explanation:

7^-1/7^-2=7

4 0
3 years ago
A pharmacist has 30% and 60% iodine solutions on hand. How many liters of each iodine solution will be required to produce 6 lit
kkurt [141]

Answer:

4 liters of 60% solution; 2 liters of 30% solution

Step-by-step explanation:

I like to use a simple, but effective, tool for most mixture problems. It is a kind of "X" diagram as in the attachment.

The ratios of solution concentrations are 3:6:5, so I've used those numbers in the diagram. The constituent solutions are on the left; the desired mixture is in the middle, and the numbers on the other legs of the X are the differences along the diagonals: 6 - 5 = 1; 5 - 3 = 2. This tells you the ratio of 60% solution to 30% solution is 2 : 1.

These ratio units (2, 1) add to 3. We want 6 liters of mixture, so we need to multiply these ratio units by 2 liters to get the amounts of constituents needed. The result is 4 liters of 60% solution and 2 liters of 30% solution.

_____

If you're writing equations, it often works well to let the variable represent the quantity of the greatest contributor—the 60% solution. Let the volume of that (in liters) be represented by v. Then the total volume of iodine in the mixture is ...

... 0.60·v + 0.30·(6 -v) = 0.50·6

... 0.30v = 0.20·6 . . . . subtract 0.30·6, collect terms

... v = 6·(0.20/0.30) = 4 . . . . divide by the coefficient of v

4 liters of 60% solution are needed. The other 2 liters are 30% solution.

6 0
3 years ago
Write 2.3181818... as a mixed number
JulsSmile [24]
Let x= 2.3181818...

then

10x=23.181818...     and

1,000x=2,318.1818...


1,000x-10x=2,318.1818...-23.181818...

       990x = 2,318 - 23
       990x = 2295
           
           x=2295/990

dividing by 5 both numerator and denominator:

               x= 459/198

now, x= 198 + 198+ 63

so x= 2\frac{63}{198}


Answer: x= 2\frac{63}{198}
7 0
3 years ago
Each game costs $1.25 and each ride costs $2.75. A boy spent $20.25 all together at the carnival and the number of rides he went
a_sh-v [17]

Answer:

3 games and 6 rides

Step-by-step explanation:

3 0
3 years ago
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