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3 years ago

Probability help please with questions 1, 2, 3, 4, 5 and 7 please? Thanks in advance! I appreciate your time so much!

Mathematics

1 answer:

Katarina [22]3 years ago

7 0

1. 3/6 = 1/2
2. 5/6
3. 3/6 : 3/6 = 3 : 3
4. 3/6 : 3/6 = 3 : 3
5. 5/6 : 1/6 = 5 : 1
7. 3/6 × 1/2 = 1/4

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Peter & Alex share a lottery win of £4450 in the ratio 4 : 1. Peter then shares his part between himself, his wife & the

Dominik [7]

Answer:

His wife gets $1068 more than his son.

Step-by-step explanation:

Peter and Alex:

Peter gets $\frac{4}{4+5} = \frac{4}{5}$ of the total amount.

$\frac{4*4450}{5} = 3560$

Peter gets $3560. He divides with his wife and son.

Peter gets $\frac{1}{1+6+3} = \frac{1}{10}$ of the amount, the wife gets $\frac{6}{1+6+3} = \frac{6}{10}$ and the son gets $\frac{3}{1+6+3} = \frac{3}{10}$

Wife:

$\frac{6*3560}{10} = 2136$

His wife gets $2136

Son:

$\frac{3*3560}{10} = 1068$

How much more does his wife get over their son?

2136 - 1068 = 1068

His wife gets $1068 more than his son.

4 0

4 years ago

Write the equation of each circle given its center and a point P that it passes through

Sedbober [7]

Answer:

$(x-1)^2+(y+2)^2=25.$

Step-by-step explanation:

If the center of the circle is (1,-2) and the circle passes through the point (4,2), then the radius of the circle is

$r=\sqrt{(1-4)^2+(-2-2)^2}=\sqrt{9+16}=5.$

The equation of the circle with center $(x_0,y_0)$ and radius r is

$(x-x_0)^2+(y-y_0)^2=r^2.$

In your case, the equation is

$(x-1)^2+(y+2)^2=25.$

8 0

3 years ago

Read 2 more answers

Which ordered pair in the form (x,y) is a solution of this equation? 7x-5=1

leva [86]

ANSWER

B. (-2,-3)

EXPLANATION

The given equation is

$7x - 5y = 1$

We want determine which of the ordered pairs is a solution to the given equation.

For point A(-3,-2)

$7( - 3) - 5( - 2) = 1$

$- 21 + 7 = 1$

This statement is false.

For option B(-2,-3)

We have

$7( - 2) - 5( - 3) = 1$

$- 14 + 15 = 1$

For option C(0,4)

We have

$7(0) - 5(4)=1$

$0 - 20=1$

For option D(4,0)

We have

$7(4) - 5(0)=1$

$28 - 0=1$

This statement is false.

8 0

4 years ago

The original price of an item was $20.00. It was marked up 25%. What is the new selling price?

Gre4nikov [31]

Answer:

$25

Step-by-step explanation:

Multiply $20 by 0.25 (which is 25% as a decimal)

$20 x 0.25 = $5

Add $5 to $20 which makes the answer $25

3 0

3 years ago