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3 years ago

I'm so confused help me plz

Mathematics

1 answer:

zmey [24]3 years ago

4 0

So x=7 and y=10 because 35+70 equals 105 what i did is just plugged in numbers.

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Solve for f.<br><br> 0.3 = 0.5 f - 0.7

Ymorist [56]

F is 2 that’s the answer!!

4 0

3 years ago

Read 2 more answers

There are two boxes containing red and blue balls. For box A, there are 3red balls and 7blue balls. For box B, there are 6red ba

Brums [2.3K]

Answer:

0.3333 = 33.33% probability that this red ball is from box A.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Red ball

Event B: From box A.

Probability of a red ball:

3/10 = 0.3 of 1/2 = 0.5(box A)

6/10 = 0.6 of 1/2 = 0.5(box B). So

$P(A) = 0.3*0.5 + 0.6*0.5 = 0.45$

Probability of a red ball from box A:

0.3 of 0.5, so:

$P(A \cap B) = 0.3*0.5 = 0.15$

What is the probability that this red ball is from box A?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.15}{0.45} = 0.3333$

0.3333 = 33.33% probability that this red ball is from box A.

8 0

3 years ago

Nolan Walker decided to buy a used snowmobile since his credit union was offering such low interest rates. He borrowed $4,400 at

Serhud [2]

Answer:

He paid $253.09 in interest.

Step-by-step explanation:

To find how much did he pay in interest, we use the simple intrest formula, that is given by:

$I = Prt$

In which I is the value paid in interest, P is the money borrowed, r is the yearly interest rate and t is the time.

In our problem, we have that:

He borrowed $4,400, so $P = 4,400$

At 4.75% yearly. We measure the time in days, so we have to divide this value by 365. So $r = \frac{0.0475}{365}$ .

From December 26, 2019 to February 21, 2021, there are 422 days, so $t = 422$ .

$I = Prt$

$I = 4,400\frac{0.0475}{365} 422$

$I = 253.09$

He paid $253.09 in interest.

5 0

3 years ago

Graph the hyperbola y^2/16-x^2/9=1. What type of transverse axis does it have?

gulaghasi [49]

<span>Center(0,0)
a^2=16
a=4
b^2=9

b=3
c^2=a^2+b^2=16+9=25
c=√25=5</span>

3 0

3 years ago

Please help! I will mark the Brainliest!! The engines of a plane are pushing it due north 300 mph and the wind is blowing at a r

valkas [14]

Answer:

the plane is traveling with a speed of 156.44mph

Step-by-step explanation:

Find the attached explanation.

3 0

3 years ago