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frez [133]
2 years ago
14

What is S7 for 6-24+96-324+...?

Mathematics
1 answer:
Goryan [66]2 years ago
8 0

Answer:

1230

Step-by-step explanation

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One number is 3 less than twice another. If their sum is 39 find the numbers
DedPeter [7]

Answer:

The numbers are 14 and 25

Step-by-step explanation:

Let one of the numbers be x. The second number we are told is 3 less than twice x. The second number will thus be;

2x - 3

The sum of the numbers is thus;

x + (2x - 3) = 3x - 3

But the sum of the numbers is said to be 39, therefore;

3x - 3 = 39

3x = 42

x = 14

The second number is thus;

2(14) - 3 = 28 - 3 = 25

5 0
3 years ago
A mixture of alcohol and water contains a total of 60 oz of liquid there are 12 oz of pure alcohol in the mixture was a percenta
OlgaM077 [116]

Answer:

The mixture contains 80% water and 20% alcohol.

Step-by-step explanation:

Given:

Total Amount of mixture = 60 oz

Amount of alcohol in the mixture = 12 oz

We need to find the percentage of water and percentage of alcohol in the mixture.

Solution:

First we will find the amount of water in mixture.

Now we know that;

Total Amount of mixture is equal to sum of Amount of alcohol in the mixture and amount of water in mixture.

so we can say that;

amount of water in mixture = Total Amount of mixture - Amount of alcohol in the mixture

amount of water in mixture = 60-12 =48\ oz

Now we will find the Percentage amount of water.

Percentage amount of water can be calculated by dividing amount of water in mixture by Total Amount of mixture and then multiplying by 100.

framing in equation form we get;

Percentage amount of water = \frac{48}{60}\times 100 = 80\%

Percentage amount of alcohol = 100\%-80\%=20\%

Hence The mixture contains 80% water and 20% alcohol.

7 0
2 years ago
Trig. Ratios of perimeters and areas.
fenix001 [56]

Answer:

8:9

Step-by-step explanation:

ratio of areas = (ratio of sides)²

64/81 = (ratio of sides)²

Square root both sides

8/9 = ratio of sides

5 0
3 years ago
8/9 in simplest form
tigry1 [53]

Answer:

its already in its simplest form.

5 0
2 years ago
Read 2 more answers
From 2010 to 2015, a group of researchers conducted an experiment using two types of pain medication: pill A and pill B. The res
Elis [28]

Answer:

b i think im wrong but i tried..

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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