MATHEMATICS MIDDLE SCHOOL

Can someone help me with this question? It's related to equations.
Can someone help me with this question? It's related to - 1

Answers

Answer 1
Answer: There’s infinite solutions

Related Questions

What's a integer number ?Example: -1<?<3
Round 845,001 to the nearest
an animal shelter has 36 kittens and 12 puppies available for adoption what was the ratio of puppies to kittens
Cot 0=0.7615, for 0 less than or equal to 0 less than or equal to 2 x pi
In which sentence is the underlined word the proper adjective formed from China? A. The China's athlete won a gold medal in the race. B. The Chinese athlete won a gold medal in the race.. C. The China athlete won a gold medal in the race.

What is the answer to 9n=45 ?

Answers

The answer to your question is 5 because 9 times 5 is 45. 

Hope this helps:)
n=5 is the answer to your question

Geoffrey and his babysitter spent 20 minutes preparing dinner, 2 hours and 30 minutes playing board games, and half an hour making dessert. How many minutes did they spend doing these activities?

Answers

200 minutes 
20 + 60 + 60 + 30 + 30 = 200
This is very simple!!
.
Don't worry, no need to panic.
.
Just add the number of minutes up!!
.
Write the numbers that you can see are evident down.
.
20... 2 hours and 30 minutes... no more.
.
BUT WAIT!! 
.
Half an hour looks suspicious.
.
Isn't that 30 minutes?
.
Add that to our list.
.
Now, we have to convert 2 hours to minutes.
.
Arggggh!!
.
Don't worry, there's 60 minutes in an hour, so 60 x 2 is 120 minutes!!
.
Add em' up!!
.
20 + 120 + 30 + 30 is...
.
200 minutes!!
.
Or, 3 hours and 20 minutes.
.
Hope I helped!!

The year is 1714. You are in a dark Spanish prison. You wake up to find yourself tied to a table with ropes. In the darkness you hear a rhythmic swishing sound-something going back and forth, back and forth. Eventually your eyes get accustomed to the dark and see that the source of the sound is a sharp bade at the end of a long pendulum that’s swinging back and forth over your body. With each sweep it gets a little lower-and a little closer to your chest. You note how long it takes between those swishes: exactly 7 seconds. And with each swish, the blade drops 1 inch lower. The last passing was only 15 inches above your chest. It won’t be much longer before the blade slices right through you. Should you scream for help? That would probably just summon a guard, who would run through with a sword then and there. But wait! You see a rat by your arms and he’s gnawing at the rope that binds you to the table. In fact, he has only 1 minute to go before he gnaws through it all the way. When he does that, you can get free! Will the rat chew through the rope before or after the blade has slashed through your chest? How much time do you have exactly?

Answers

If the rat will chew through the rope in 60 seconds you will be free.
In 7 seconds it will be 14 inches from your chest
In 14 seconds it will be 13 inches from your chest
In 21 seconds it will be 12 inches from your chest
In 28 seconds it will be 11 inches from your chest 
In 35 seconds it will be 10 inches from your chest
In 42 seconds it will be 9 inches
In 49 seconds it will be 8 inches
In 56 seconds it will be 7 inches
In 63 seconds it will be 6 inches  (and you will be free since the rat finished)
In 70 seconds it will be 5 inches
In 77 seconds it will be 4 inches
In 84 seconds it will be 3 inches
In 91 seconds it will be 2 inches
In 98 seconds it will be 1 inch
You have 6 seconds before it swings again and cuts you so you have 104 seconds exactly but lucky for you the rat chewed through the rope 44 seconds ago.

A local flower shop is selling $1 raffle tickets and is donating all proceeds to the children's hospital. They sold 5,500 tickets and plan to give away 20 flower arrangements valued at $70 and 20 gift certificates valued at $25. Find the expected value of purchasing a raffle ticket.Round to the nearest cent. Do not round until the final calculation.

Answers

The expected value of purchasing a raffle ticket is -0.647.

What is the Expected Value of a Probability & Statistical  Analysis?

The expected value is derived in probability analysis by the multiplication of each of the potential possibilities by the likelihood that each result will occur and then adding all of those values together.


Using the formula below, we can calculate the expected value as follows:

\mathbf{ E(X)= \sum^(n)_(i=1)X_i P(X_i)}

However, the probability (Pr) of each event can be categorized as follows:

  • Pr (to win a flower arrangement ) \mathbf{=(20)/(5500)}

  • Pr (to gift a certificate) \mathbf{=(20)/(5500)}

  • Pr (no win) ) \mathbf{=(5500 - 20 - 20)/(5500)=(5460)/(5500)}

Thus;

\mathbf{E(X) = 70((20)/(5500) * 25 (((20)/(5500) )- 1((5460)/(5500) )}

\mathbf{E(X) =-0.647}

Learn more about finding the expected value of a probability here:

brainly.com/question/9931880

Answer: The expected value of purchasing a raffle ticket would be $0.3449.

Step-by-step explanation:

Since we have given that

Number of tickets = 5500

Number of flower arrangements = 20

Number of gift certificates = 20

So, Probability that wining $70 at flower arrangement = (20)/(5500)=(1)/(275)

Probability that wining $25 at gift certificates = (20)/(5500)=(1)/(275)

So, Expected value of purchasing a raffle ticket would be

70* (1)/(275)+25* (1)/(275)\n\n=0.254+0.0909\n=\$0.3449

Hence, the expected value of purchasing a raffle ticket would be $0.3449.

sam paid $20 for two t-shirts. the price for each t-shirt was a multiple of 5. what are the possible prices of the t-shirts?

Answers

the possible answers are 15,5 and 10,10

What is the value of f-1(6)?

Answers

Answer:

f-6

Step-by-step explanation:

f - 1(6)

1(6)= 1*6 =6

f-6
F 6483!33i8383939283949493
Other Questions
A new gold phone has different prices for different types....$1,544 $1,242 $2,285 $1,116 $1,899 $1,649 $1,423 and $1,242 -again.....what is the range of the prices shown above?
Approximately 32,400 citizens of a country died in automobile accidents in 2015 express this toll in deaths per day round to the nearest whole number as​ needed
an ecosystem which is 10 km squared contains a population of 1000 squirrels what is the population density of the squirrels in this ecosystem
Plzzzz help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee