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3 years ago

Find the probability of rolling two number cubes and getting a 2 on the first number cube and a 6 on the second?

Mathematics

1 answer:

Tanzania [10]3 years ago

4 0

Answer:

Step-by-step explanation:

A cube has 6 sides

Only one side of the cube has 2 on it

The probability of getting 2 would be 1/6

Only one side of the cube has 6 on it

The probability of getting 6 would be 1/6

For both events to happen together

1/6 x 1/6 = 1/36

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ann works in a supermarket for $10.00 per hour. she received a raise to $12.00 . What is the percent of change in her hourly wag

bekas [8.4K]

Answer

20%

Step-by-step explanation:

10.00 is the start wage, 12.00 is the new wage

going from 10 to 12 dollars is a 2 dollar increase

2 dollars is 20% of her original salary, so she is now making 120% of what she previosuly made which is a 20% increase

8 0

1 year ago

Solve ( x + 1 < 5) ∩ ( x - 4 > -3).

qaws [65]

The intersection of $(x+1-3)$ is $(1,4)$

Explanation:

The expression is $(x+1-3)$

To determine the intersection of these two inequalities, let us solve the two inequalities separately.

Consider $x+1$

Subtracting both sides by 1, we have,

$x$

Also, consider $x-4>-3$

Adding both sides by 4, we have,

$x>1$

Using these two simplified inequalities in the expression, we have,

$(x1)$

Writing this in the interval notation, we get,

$(-\infty, 4) \cap(1, \infty)$

Hence, the intersection of the two interval is

$(1,4)$

Thus, the intersection of $(x+1-3)$ is $(1,4)$

3 0

2 years ago

Simplify the following. (a) 3(-3 + 5x) - 1 (4 - 4x) (b) 3 squareroot 64 x^15 y^3 -2(-15 e^5 t/30 e^-2 t^-3)^0

Kaylis [27]

Answer:

a. 19x-13 b. $2(32x^{15}y^{3}-1).$

Step-by-step explanation:

a. 3(-3+5x)-1(4-4x) = -9+15x-4+4x = 15x+4x-9-4 = 19x-13.

b. $64x^{15}y^{3}-2(-15e^{5}\frac{t}{30}e^{-2}t^{-3})^{0}$

= $64x^{15}y^{3}-2 = 2(32x^{15}y^{3}-1).$

6 0

3 years ago

Naomi is 16 and she would like to open a savings account. What should she do?

Deffense [45]

She should ask her parents how it works before doingt it

8 0

2 years ago

Read 2 more answers

a motorboat travels 305km in 5 hours going upstream and 651km in 7 hours going downstream. What is the rate of the boat in still

Ghella [55]

Recall your d = rt, distance = rate * time.

b = speed rate of the boat.

c = speed rate of the current.

keeping in mind that, as the boat goes Upstream, against the current, it's speed is not "b", but is really " b - c ", because the current is subtracting speed from it.

likewise, when the boat is going Downstream, because is going with the current, is really going faster at " b + c ".

$\bf \begin{array}{lccclll}
&\stackrel{km}{distance}&\stackrel{kmh}{rate}&\stackrel{hours}{time}\\
&------&------&------\\
Upstream&305&b-c&5\\
Downstream&651&b+c&7
\end{array}
\\\\\\
\begin{cases}
305=(b-c)(5)\implies 61=b-c\implies 61+c=\boxed{b}\\
651=(b+c)(7)\implies 93=b+c\\
----------------------\\
93=\boxed{61+c}+c
\end{cases}
\\\\\\
93=61+2c\implies 32=2c\implies \cfrac{32}{2}=c\implies 16=c$

what is the speed of the boat? well, 61 + c = b.

6 0

3 years ago