All categories

3 years ago

What is x-3=14 x-2=y

Mathematics

1 answer:

Umnica [9.8K]3 years ago

4 0

Answer:

x=17

y=15

Step-by-step explanation:

First plug in the numbers:

x-3=14 x-2=y

What does 3+14=? Well it should equal 17 if added properly.

So then this would be true 17-3=14.

Then if x-2=y you could write 17-2=15. Then y=15

You might be interested in

Julie is purchasing a home for $169,000.Her loan has been approved for a 30-year fixed-rate loan at 5 percent annual interest. S

Rudik [331]

<span>What is the total interest she will pay on her loan?</span>

7 0

3 years ago

Read 2 more answers

Solve the following word problems using a system of equations. The sum of two numbers is 36. One number is two more than the oth

juin [17]

Answer:

24,12

Step-by-step explanation:

suppose,

x+y=36

x=2y

2y+y=36

y=12

x=24

4 0

3 years ago

A real estate agent has 19 properties that she shows. She feels that there is a 30% chance of selling any one property during a

netineya [11]

Answer:

$P(X \geq 5)=1-P(X$

We can find the individual probabilities:

$P(X=0)=(19C0)(0.3)^0 (1-0.3)^{19-0}=0.00114$

$P(X=1)=(19C1)(0.3)^1 (1-0.3)^{19-1}=0.0092$

$P(X=2)=(19C2)(0.3)^2 (1-0.3)^{19-2}=0.0358$

$P(X=3)=(19C3)(0.3)^3 (1-0.3)^{19-3}=0.0869$

$P(X=4)=(19C4)(0.3)^4 (1-0.3)^{19-4}=0.1491$

And replacing we got:

$P(X \geq 5) = 1-[0.00114+0.009282+0.0358+0.0869+0.149]= 0.7178$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=19, p=0.3)$