4 years ago

Hi there can anyone help me with this question please

Mathematics

1 answer:

forsale [732]4 years ago

4 0

Mean means average, so you would add the numbers up and divide by the amount of numbers in the set.

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Jane and john shared some money such that jane got 4 times as much money as john. What fraction of money did john get ?

VMariaS [17]

Answer:

1/5

Step-by-step explanation:

let's assume the share John gets to be x

John: x

jane: 4x

therefore there total will be 5x

x/5x=0.2 or 1/5

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3 years ago

A recipe for sugar cookies requires 2 cups of flour for every 2/3 cups of sugar.at this rate how many cups of sugar should be us

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3 years ago

Read 2 more answers

Solve the system of equations using elimination/combinations-2x -y = -4 x + 2y =5

sweet-ann [11.9K]

Answer:

x = 1, y = 2

Step-by-step explanation:

In the elimination method to solve a system of linear equations, one of the two equations is added/subtracted to the other, in order to eliminate one variable from the equation.

In this problem, we have the following two equations:

$-2x-y=-4\\x+2y=5$

To solve the system, first we multiply by 2 both sides of the second equation, and we get:

$2(x+2y)=2(5)\\2x+4y=10$

So now the system is

$-2x-y=-4\\2x+4y=10$

Now we add the two equations, and we get:

$(-2x+2x)+(-y+4y)=(-4+10)\\3y=6$

So, we get

$y=\frac{6}{3}=2$

Now we can substitute this value of y into the eq.(2), and we get:

$x+2y=5\\x+2(2)=5\\x+4=5\\x=5-4=1$

3 0

3 years ago

-4u = 16 so what does u equal

Mamont248 [21]

-4u=16 U=16÷(-4) U= -4 To check -4(-4)=16 16=16

5 0

3 years ago