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Mathematics Middle School

The mean age of 10 people in a room was 16. When Toby walked into the room,

The mean age of 10 people in a room was 16. When Toby walked into the room, the mean age went up to 18. What is Toby's age?

2 months ago

Solution 1

Guest

Guest #6876904

2 months ago

24? I dunno. but I will just assume it is.

📚 Related Questions

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Given the slope and y-intercept can you write an equation for the line?

Solution 1

Y=mx+b
m=slope
b=yintercept

example
if slope=3
yintercept is 2 then
y=3x+2
simple as that

Solution 2

Yes, because the equation to find the proportional relationship is y=kx. Y- origin
K- constant rate of proportionality

Question

HELP ME PLEASE What can you tell about the initial value and the y-intercept?

Solution 1

The y intercept is when x=0
x is the depdendent numer
when x=0 (or when no change has occured), the y intercept is te starting value

example
a car is at the 1 mile mark
if it goes 10 miles per hour, what mark will it be at in 10 minutes
distance=10x+1
1 is starting point, when x=0, or when the car hasn't traveld at all

yint is the initial value of the function

Solution 2

Well, the slope is 8 and the y-intercept is -10
the slope is always the number in front of just 'x' and the y- intercept is any number without a variable (Thats all I got) Hope this helps!

Question

Factor the expression. 15n−18

Solution 1

I saw that you put this question here twice so here's my answer again with the math.

Factor 15n−18
15n−18
=3(5n−6)

3(5n−6)

5n-18 factored is 3(5n−6)

Solution 2

Divide each term by 3...
15n - 8 = 3(5n - 6)

Question

Factor the expression. 15n−18

Solution 1

For this case we have the following expression:

$15n-18$

We look for the factors of each coefficient.

We have then:

$15 = 1,3,5,15\\18 = 1,2,3,6,9,18$

Taking the biggest common factor we have:

$15n-18 = 3 (5n-6)$

Therefore, the factored expression is given by:

$3 (5n-6)$

Answer:

the factored expression is given by:

$3 (5n-6)$

Solution 2

Factor 15n−18
15n−18
=3(5n−6)

3(5n−6)

5n-18 factored is 3(5n−6)

Question

A coyote can run up to 43 miles per hour while a rabbit can run up to 35 miles per hour.write two equivalent expression and then find how many more miles a coyote can run in six hours than a rabbit at these rates

Solution 1

D=s*t
distaance=speed times time

cd=coyote distance*time=ds*dt
rd=rabbit diatance*time=rs*rt

given
t=6 for all, so dt=rt=6

and ds=43
rs=35

cd=43*6=258miles
rd=35*6=210miles

how much more?
258-210=48

48 more miles

Question

What two-word phrase indicates a ratio or fraction?

Solution 1

It's ratio-proportion

hope it helps

Question

A mathematical term that does not include an equal or inequality sign is called an _____.

Solution 1

This mathematical term is called an expression

Solution 2

That would be an EXPRESSION

Question

Phil consumed 1,200 calories at lunch. He has a goal of burning at least 5% of those calories by walking on the treadmill. If walking on the treadmill burns 200 calories per hour, which statement best describes how long he should walk on the treadmill? more than 18 minutes no fewer than 18 minutes more than 3 hours no fewer than 3 hours

Solution 1

Answer: ** B **

A. more than 18 minutes

~ B. no fewer than 18 minutes

C. more than 3 hours

D. no fewer than 3 hours

Step-by-step explanation:

Solution 2

Answer:

B. The answer is B

Step-by-step explanation:

5 Stars pls :P

Question

A small bag of chips contains 0.2 of a cup of sugar. If a large bag of chips is the same as 6.4 small bags, how much sugar does a large bag contain?

Solution 1

The answer is 12.8

6.4 multiplied by 0.2 equals 12.8

Question

Herman horse trader bought a horse for $600 and then sold it for $700. The next day he bought it back for $800 and then sold it for $900. How much money did Herman make altogether?

Solution 1

The total amount of the profit will be $200.

What is a profit?

A monetary profit, particularly the distinction between the amount gained and the actual cost of purchasing, running, or creating anything.

The profit is given as,

Profit = Selling price - Cost price

Herman horse trader bought a horse for $600 and then sold it for $700.

Then the profit will be

⇒ $700 - $600

⇒ $100

The next day he bought it back for $800 and then sold it for $900.

Then the profit will be

⇒ $900 - $800

⇒ $100

Then the total amount of the profit will be

P = $100 + $100

P = $200

The total amount of the profit will be $200.

More about the profit is given below.

brainly.com/question/15036999

#SPJ2

Solution 2

700-600=100. 100-800= -700. -700+900= 300

The horse trader made three hundred dollars

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