3 years ago

Help！！！！ help！！！！ help！！！！ help！！！！ help！！！！

Mathematics

1 answer:

blagie [28]3 years ago

5 0

hola buenos días tío PEDRO de la Mari pero le

You might be interested in

Solve x∕4 + y∕3 = 1 for x.

VladimirAG [237]

Answer:

D)x = 4∕3y – 4

Step-by-step explanation:

$\frac{x}{4} + \frac{y}{3} = 1$

$3x + 4y = 12$

$3x = 12 - 4y$

$x = 4 - \frac{4}{3} y$

7 0

3 years ago

A Nevada roulette wheel had 38 pockets, labeled as 0 00 1 2 3 ... 35 36. One bet is single number. If you bet $1 on a number (an

slavikrds [6]

Answer:

-0.0526

Step-by-step explanation:

Let X be the random variable denoting the net gain(in dollars) for a single trial(one bet).

Assuming that each number in the wheel is equally likely, probability of the outcome being a victory is $\frac{1}{38}$ and probability of failure is $\frac{37}{38}$ . For a win, X takes value 35 and for a loss X takes value -1. So the model is,

$P(X=35) = \frac{1}{38}$

$P(X=-1) = \frac{37}{38}$

$P(X=i) = 0 \;if\; i \neq 38, i\neq -1$

The mean for one bet is $E(X) = \sum xP(X=x) = 35\times\frac{1}{38} - 1\times\frac{37}{38} = -0.0526$

3 0

3 years ago

Can someone please help me with this question

aev [14]

A is x times larger than B
4*10^-3=x times larger than 4*10^-4
4*10^-3=x*4*10^-4
divide both sides by 4
10^-3=x*10^-4
divide both sides by 10^-4
10^1=x
10^1=10
answer is 10 times or C

5 0

3 years ago

Please help!!! Correct answer will get brainliest! A chemist needs 10 liters of a 10% alcohol solution but has only a 25% alcoho

Kamila [148]

You must add 15 liters of pure water

5 0

3 years ago

Ratios and Proportions

irina1246 [14]

An example of a ratio would be:
1:2
3:4
5:6

An example of a proportion would be:
1/2
3/4
5/6

Hope this helps!

4 0

3 years ago

Read 2 more answers