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3 years ago

There are 40 marbles in a bag. 18 are red, 12 are white, and 10 are blue. What is the probability of picking a red marble?

Mathematics

1 answer:

ss7ja [257]3 years ago

7 0

Answer:

40%

Step-by-step explanation:

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Chelsey wants to join a fitness club. The fitness club charges an initial membership fee of $55 and a monthly fee of 19.50. she

Naddik [55]

Answer:

Chelsey can be a member of the fitness club for 10 months.

Step-by-step explanation:

Given:

Chelsey wants to join a fitness club.

The fitness club charges an initial membership fee of $55 and a monthly fee of $19.50.

She has $250 to spend on a membership at the fitness club.

Now, to find the number of months Chelsey can be a member of the fitness club.

Let the number of months Chelsey can be a member of the fitness club be $x.$

Monthly fee = $19.50.

Membership fee = $55.

Now, to get the number of months Chelsey can be a member of the fitness club we write and solve an equation:

$55+19.50(x)=250.$

$55+19.50\times x=250\\\\55+19.50x=250$

Subtracting both sides by 55 we get:

$19.50x=195$

Dividing both sides by 19.50 we get:

$x=10.$

Therefore, Chelsey can be a member of the fitness club for 10 months.

5 0

3 years ago

Write an equation and solve. How opd am I if 400 reduced by 2 times my age is 244?

seropon [69]

Answer:

Step-by-step explanation:

x = your age

400 - 2x = 244

subtract 400 from both sides of the equation:

-2x = -156

divide both sides by -2:

x = 78

4 0

2 years ago

Read 2 more answers

Write the point-slope form of the line's equation satisfying the given conditions. Then use the point-slope form of the equat

Monica [59]

Point slope form: (y-2) = 4(x-6)
Slope-intercept form: y=4x-22

6 0

3 years ago

Math 8: Linear Functions, Part 2

Studentka2010 [4]

Answer:

$\boxed{\text{1. y + 5 = -4(x - 3); \qquad 2. y - 8 = x + 1}}$

Step-by-step explanation:

Question 1

The point-slope formula for a straight line is

y – y₁ = m(x – x₁)

x₁ = 3; y₁ = -5; m = -4

Substitute the values

$\boxed{\textbf{y + 5 = -4(x - 3)}}$

The diagram shows the graph of equation 1 (red) with slope -4 passing through (3,-5).

Question 2

x₁ = -1; y₁ = 8; m = 1

Substitute the values

$\boxed{\textbf{y - 8 = x + 1}}$

The diagram shows the graph of equation 2 (green) with slope 1 passing through (-1,8).

3 0

3 years ago

Please help. thank you.

liq [111]

Reason:
The angle between tangents and angle subtended by radii are supplementary∠BAP = 90° 

x = 180 - 73 = 107°

Answer: x = 107°

5 0

3 years ago