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NISA [10]
2 years ago
7

Please help with this! I will need a clear explanation!

Mathematics
2 answers:
vlabodo [156]2 years ago
7 0

Answer:

4.5 : 1

45 : 10

Step-by-step explanation:

Given ratio:  13.5 : 3

To calculate equivalent ratios, we need to do the same operation to both sides of the ratio.

To reduce 3 L of paint to 1 L of paint, we need to divide by 3.

Therefore, we should also divide 13.5 by 3:

13.5 ÷ 3 : 3 ÷ 3

= 4.5 : 1

To increase 1 L of paint to 10 L of paint, we need to multiply by 10:

4.5 × 10 : 1 × 10

= 45 : 10

natita [175]2 years ago
3 0

Willy can cover in 1L paint

\\ \rm\rightarrowtail \dfrac{13.5}{3}=4.5m^2

  • 1st box should be filled with 4.5

Can cover in 10L

\\ \rm\rightarrowtail 4.5(10)=45m^2

Second one should be filled with 45

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You and your brother are reading the same novel. You want to get ahead of him in the book, so you decide to read 303030 minutes
aliina [53]

Answer:

For this case we have the following notation:

y= the number of minutes that you read

x = the number of minutes that your brother read

And we have that you decide to read 30 minutes longer than your brother, so the equation would be:

y = x+30

And for the other part of the question if x =15 we got:

y = 15+30 = 45

Step-by-step explanation:

Assuming this complete question: "You and your brother are reading the same novel. You want to get ahead of him in the book, so you decide to read 30 minutes longer than your brother reads. Write an equation for the number of minutes you read, y, when your brother reads x number of minutes.

How many minutes will you read if your brother reads for 15 minutes?"

Solution to the problem

For this case we have the following notation:

y= the number of minutes that you read

x = the number of minutes that your brother read

And we have that you decide to read 30 minutes longer than your brother, so the equation would be:

y = x+30

And for the other part of the question if x =15 we got:

y = 15+30 = 45

5 0
3 years ago
What is the solution to this system of linear equations?
alexandr1967 [171]

Answer:

A. (-1 , 3)

Step-by-step explanation:

          2x + y = 1

plus    3x - y = -6

------------------------------

5x = -5

x = -1

y = 1 - (2*-1) = 3

3 0
2 years ago
Read 2 more answers
Solve for x: 4 over x equals 5 over 10
julsineya [31]

Answer:

x = 8,

Step-by-step explanation:

\displaystyle \frac{4}{x} = \frac{5}{10}.

x \ne 0 for it is a denominator. Multiply both sides with the product of the two denominators: 10\;x:

\displaystyle \frac{4}{x}\cdot (10\; x) = \frac{5}{10}\cdot (10\;x).

40 = 5\; x.

Multiply both sides by one over the coefficient of x:

\displaystyle \frac{1}{5} \times 40 = \frac{1}{5}\times 5\; x.

x = 8.

8 0
3 years ago
Read 2 more answers
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Dmitry_Shevchenko [17]
The answer is C.13.00$
7 0
3 years ago
HELP no one seems to be answering me
notsponge [240]

Answer:

number 2 is B I think

Step-by-step explanation:

number 2 is B I think

5 0
2 years ago
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