20.8KGs equals 20L, what is 10.5 kgs in litres

Answers

Answer 1

Answer: y = k x

20.8 kg = 20L
10.5 kg = ?L

Independent variable (y) : 20.8 kg
Dependent variable (x) : 20L

Find k, or a number that will be multiplied to the dependent variable to produce the independent variable.

20.8 kg = k (20L)
20.8 kg ÷ 20L = k
k = 1.04

Use k to find the dependent variable in the second set of items.

10.5 kg = (1.04) x
10.5 kg ÷ 1.04 = x

The answer would be:
10.1L

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Write an equation that involves multiplication, contains a variable, and has a solution of 5. Then write another equation that has the same solution and includes the same variable and numbers but use divison.
22.88 what is the number rounded to the nearest tenth
3. In dividing 12m2 - 20m + 3 by 2m - 3,what is the first step?
Three consecutive even numbers add up to a number between 100 and 120 what might the number be?

The table shows a bank account balance for 2 days. How much did the bank account change over the two days?

Answers

21-(-55)

=76

=+$76

..........

I believe it’s -76 that’s what I think it is

Can you help with these two questions I'm having hard times in math

Answers

Sure, here are what I got for those 2 questions:

16.
No, the Rockets' ratio was 1:3 whereas the Turbo's was 4:9.

17.
They make 33.3333% of free throws, so if they attempted 12, they would make 4 because 1/3 x 12 = 4.

What is the solution of the system?Use the substitution method.

{y+7=3x
6x−2y=12

(14, 12)
(12, 14)
There is no solution.
There are an infinite number of solutions.

Answers

Answer:

Choice C) no solutions

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Work Shown:

y+7 = 3x turns into y = 3x-7 after we subtract 7 from both sides

Plug that into the other equation and solve for x

------

6x - 2y = 12

6x - 2( y ) = 12

6x - 2( 3x-7 ) = 12 ... y replaced with 3x-7

6x - 2(3x) - 2(-7) = 12

6x - 6x + 14 = 12

0x + 14 = 12

0 + 14 = 12

14 = 12 ... this is a contradiction, aka false statement

------

No matter what x value we pick, the equation above will always be false.

Therefore, there are no solutions

We say that this system of equations is inconsistent.

Graphing both equations leads to two parallel lines. A solution only happens if the lines cross, but parallel lines never intersect.

What is 15% of 60. create a model to prove your answer

Answers

15% = 0.15
x% of any number is 0.x * that number
so the answer is 0.15 * 60 = 9

What is a over b = -2

Answers

a / b = -2

Take note:

to have a quotient with at negative sign, both a & b must have opposites signs. a can be a positive number while b is a negative number or vice versa. If both a and b have the same sign, its quotient will be a positive number.

Let us disregard the sign.
To arrive at the answer of 2, a must be twice the amount of b. meaning a = 2b.

For example: look for a if b is equal to 2. a = 2(2) ; a = 4.
a / b = 2
4 / 2 = 2
2 = 2

Now, we consider the sign of both numbers. a can be 4 while b can be -2 OR vice versa.

a / b = -2
4 / -2 = -2 or -4 / 2 = -2

Erik took a trip to see his friend Mike who lives 308 miles away. He left his place at 10 AM driving at 70 mph. In 2 hours, his friend Mike left his place driving towards Erik at an average speed of 50 mph. At what time will they meet?

Answers

Answer:

Erik and Mike will meet at 1:24 PM

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Distance between Erik and Mike = 308 miles

Speed that Erik drove = 70 mph

Time Erik left = 10 AM

Speed that Mike drove = 50 mph

Time Mike left = 12 PM

2. At what time will they meet?

For answering the question, let's find how much miles Erik drove at 12 PM, when Mike started to drive towards Erik:

Miles driven by Erik after two hours = Speed * Time

Miles driven by Erik after two hours = 70 * 2

Miles driven by Erik after two hours = 140

Now we can calculate the distance between Erik and Mike at 12 PM, this way:

308 - 140 = 168

At 12 PM the distance between Erik and Mike is 168 miles

t = time it takes Erik and Mike to meet

The equation to solve for t is:

Distance Erik will travel = 70t

Distance Mike will travel = 50t

70t + 50t = 168

120t = 168

t = 168/120

t = 1.4 hours

1.4 hours = 1 hour + 4/10 * 60 minutes = 1 hour + 24 minutes

Time of the day Erik and Mike will meet = 12 PM + 1 hour and 24 minutes

Time of the day Erik and Mike will meet = 1:24 PM

Answer:

1:24 pm

Step-by-step explanation:

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