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victus00 [196]
3 years ago
8

William has a 26-liter glass tank. First, he wants to put some marbles into it, all of the same volume. Then, he wants to fill t

he tank with water until it's completely full. If he uses 85 marbles, he will have to add 20.9 liters of water.
What is the volume of each Marble?

How much water is necessary if William uses 200 marbles? ​
Mathematics
1 answer:
ELEN [110]3 years ago
8 0
Snejiejcjdjdkxmxmxmcm j ncmmcmdmeme
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Which set of numbers can represent the side lengths, in inches, of an acute triangle?
MrMuchimi

Answer:

B. 5, 7, 8

Step-by-step explanation:

When you take the sum of the squares of 5 and 7 they are greater than the square of 8.

5² + 7² = 8²       Simplify

25 + 49 = 64    Add

74 > 64

If this answer is correct, please make me Brainliest!

8 0
3 years ago
A bag contains purple marbles and white marbles, 104 in total. The number of purple marbles is 2 more than 5 times the number of
Helen [10]

Let white marbles = x

Purple marbles = 5x + 2

Given:

x + 5x + 2 = 104

6x = 102

x = 17

Purple marbles = 5(17) + 2 = 85 + 2 = 87

4 0
3 years ago
2. The difference of two numbers is 3. Their sum is 13. What are the two numbers?
kkurt [141]

Answer:

The two numbers are x = 8 and y = 5

Step-by-step explanation:

Let the two numbers be x and y

The difference of two numbers is 3 is represented as:

x - y = 3------------------Equation 1

Their sum is 13 is represented as:

x + y = 13----------------Equation 2

x - y = 3------------------Equation 1

Using method of Elimination by subtracting Equation 1 from Equation 2

x-x + y-(-y) = 13 - 3

2y = 10

y = 10/2

y = 5

Substituting y = 5 in Equation 2

x + 5 = 13

x = 13 - 5

x = 8

∴ The two numbers are x = 8 and y = 5

8 0
3 years ago
Work out the lengths of sides a and b.<br> Give your answers to 1 decimal place.
torisob [31]

Step-by-step explanation:

{a}^{2}  =  {8}^{2}  +  {5}^{2}  \\  {a }^{2}  = 64 + 25 \\  {a}^{2}  = 89 \\ a =  \sqrt{89}  = 9.4 \: cm

{17}^{2}  =  {12}^{2}  +  {b}^{2}  \\  {b}^{2}  =  {17}^{2}  -  {12}^{2}  \\  {b}^{2}  = 289 - 144 \\  {b}^{2}  = 145 \\ b = 12 \: cm

3 0
3 years ago
ANSWER FAST PLS ILL MARK AS BRAINLIST write an expression that is equivalent to 3/4a + 2,3 - 1/2a -1/3 + 1/2a
maksim [4K]
6/8a+4,6-2/4a. I think that this is the answer.
3 0
2 years ago
Read 2 more answers
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