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4 years ago

M multiplied by 2 and then add 3

Mathematics

1 answer:

Digiron [165]4 years ago

5 0

Answer:

m is multiplied by 2

so (m)*2

=2(m)

=2m

2m add 3

=2m+3

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Solve the system of equations by graphing<br>2x+y=8<br>x+3y=9

natima [27]

9514 1404 393

Answer:

(x, y) = (3, 2)

Step-by-step explanation:

The attached graph shows the solution.

(x, y) = (3, 2)

3 0

3 years ago

When Alice spends the day with the babysitter, there is a 0.6 probability that she turns on the TV and watches a show. Her littl

slava [35]

Answer:

a) There is a 48% probability that both Alice and Betty watch TV tomorrow.

b) There is a 48% probability that Betty watches TV tomorrow.

c) There is a 12% probability that only Alice watches TV tomorrow.

Step-by-step explanation:

We have these following probabilities:

A 60% probability that Alice watches TV.

If Alice watches TV, an 80% probability Betty watches TV.

If Alice does not watch TV, a 0% probability that Betty watches TV, since she cannot turn the TV on by herself.

a) What is the probability that both Alice and Betty watch TV tomorrow?

Alice watches 60% of the time. Betty watches in 80% of the time Alice watches. So:

$P = 0.6*0.8 = 0.48$

There is a 48% probability that both Alice and Betty watch TV tomorrow.

b) What is the probability that Betty watches TV tomorrow?

Since Betty only watches when Alice watches(80% of the time), this probability is the same as the probability of both of them watching. So

$P = 0.6*0.8 = 0.48$

There is a 48% probability that Betty watches TV tomorrow.

c) What is the probability that only Alice watches TV tomorrow?

There is a 60% probability that Alice watches TV tomorrow. If she watches, there is an 80% probability that Betty watches and a 20% probability she does not watch.

$P = 0.6*0.2 = 0.12$

There is a 12% probability that only Alice watches TV tomorrow.

7 0

3 years ago

How to solve -40=30m-16?

Gennadij [26K]

What I would do for this problem, is move all the terms that don't contain m to the right side, and then solve.
m = 4/5.

7 0

3 years ago

Read 2 more answers

If x is an odd number, write an expression for the odd number that directly follows x

il63 [147K]

The answer is: " (x + 2) " .
_______________________________________

4 0

4 years ago

A toy manufacturer makes a toy truck, a toy car, and a toy boat. The production spreadsheet is:

Sedaia [141]

Answer:

Time:

Car > Truck > Boat.

Cost of produce:

Truck > Boat > Car

Profit

Car > Truck > Boat.

We know that a worker works 400 minutes each day, and the profit that each worker needs to generate is $35, let's find how each worker needs to spend their time.

Let's call T to the number of trucks he makes, C for cars and B for boats.

Then, if he works 400 minutes we have:

T*10 + C*12 + B*8 ≤ 400

this means that the time expended crafting the toys can be, at most, 400 minutes (here you use the inequality because the worker actually can be less effective than the max, maybe tacking a break or something like that)

The other equation is:

T*1 + C*1.5 + B*0.6 ≥ 35

Here we use the inequality because the profit needs to be at least 35$, none the less, the profit can be more than tath.

Notice that if we want to solve the system with for the equal signs, it is:

T*1 + C*1.5 + B*0.6 = 35

T*10 + C*12 + B*8 = 400

We have 3 variables and 2 equations, this means that there are more than one solution for this system.

6 0

3 years ago