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3 years ago

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The scale of a map says that 8 cm represents 5 km. What is the actual number of kilometers that is represented by 5 centimeters

on the map? Must show your math thinking on the sketchpad. You may use a calculator, but must show the calculations you used.

1 answer:

mel-nik [20]3 years ago

4 0

I don’t even know man but I’ll look into it for you

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A bag contain 5 red marbles,4 green marbles and 1 blue marble. A marble is chosen at random from the bag and not replaced; then

jarptica [38.1K]

Answer:

$\frac{2}{15}$

Step-by-step explanation:

GIVEN: A bag contain $5$ red marbles, $4$ green marbles and $1$ blue marble. A marble is chosen at random from the bag and not replaced, then a second marble is chose.

TO FIND: What is the probability both marbles are green.

SOLUTION:

Total marbles in bag $=10$

total number of green marbles $=4$

Probability that first marble will be green $P(A)=\frac{\text{total green marbles}}{\text{total marbles}}$

$=\frac{4}{10}=\frac{2}{5}$

Probability that second marble will be green $P(B)=\frac{\text{total green marble in bag}}{\text{total marble in bag}}$

$\frac{3}{9}=\frac{1}{3}$

As both events are disjoint

probability both marbles are green $=P(A)\times P(B)$

$=\frac{2}{5}\times\frac{1}{3}=\frac{2}{15}$

Hence the probability both marbles are green is $\frac{2}{15}$

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3 years ago

Translate the sentence into<br> an inequality <br><br> The product of b and 3 is at least -22

Sedaia [141]

Answer:

$3b \geq -22$

Step-by-step explanation:

Product of of 3 and b is 3b

At least means greater than or equal too.

$3b \geq -22$

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2 years ago

The following are the ages (years) of 5 people in a room: 14, 16, 16, 13, 23 A person enters the room. The mean age of the 6 peo

myrzilka [38]

Answer:

44.

Step-by-step explanation:

Since the mean of 14, 16, 16, 13, 23, x is 21, then we have 14 + 16 + 16 + 13 + 23 + x is equal to 126. Summing we have 14 + 16 + 16 + 13 + 23 = 82. 82 + x is equal to 126. X = 44.

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3 years ago

Solve for x. Show the equation you used and your work.

levacccp [35]

The value of X is 27.

To solve this problem, you have to write a proportion with the given information. This can be done because the sides on the left and right are proportional with the values on the bottom.

36 / 24 = x / 18
x = 27

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3 years ago

If you have 12 cups of flour and 3 eggs how many loaves of bread can you make

scoundrel [369]

How much of each is needed to make the bread?

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3 years ago