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3 years ago

I see so much people getting their question answered in 1 minute. While mine is fudging taking hours. Please answer this. :'(

Mathematics

2 answers:

Usimov [2.4K]3 years ago

7 0

I think the answer is 10 + 8 and 70 + 6.

Alex Ar [27]3 years ago

6 0

The second answer is the first one because expanded form works like this for two digit numbers:

The tens place plus the ones place.

84 = 80(tens place) + 4(ones place)

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The difference of twelve times a number and nine times the number

Mama L [17]

Answer:

3 times a number (3x)

Step-by-step explanation: replace the phrase 'a number' with the variable X. then you simply end up with 12x-9x, which equals 3x.

6 0

3 years ago

Car X weighs 136 pounds more than car Z. Car Y weighs 117 pounds more than car Z. The total weight of all three cars is 9439 pou

Aleksandr [31]

Let x, y and z denote the weighs of car X, car Y and car Z, respectively.

We know that car X weighs 136 more than car Z, this can be express by the equation:

$x=z+136$

We also know that Y weighs 117 pounds more than car Z, this can be express as:

$y=z+117$

Finally, we know that the total weight of all the cars is 9439, then we have:

$x+y+z=9439$

Hence, we have the system of the equations:

$\begin{gathered} x=z+136 \\ y=z+117 \\ z+y+z=9439 \end{gathered}$

To solve the system we can plug the values of x and y, given in the first two equations, in the last equation; then we have:

$\begin{gathered} z+136+z+117+z=9439 \\ 3z=9439-136-117 \\ 3z=9186 \\ z=\frac{9186}{3} \\ z=3062 \end{gathered}$

Now that we have the value of z we plug it in the first two equations to find x and y:

$\begin{gathered} x=3062+136=3198 \\ y=3062+117=3179 \end{gathered}$

Therefore, car X weighs 3198 pound, car Y weighs 3179 pounds and car Z weighs 3062 pounds.

4 0

1 year ago

Best Buy is having a HUGE sale. All items are 60% off. How much will you pay for a tv that originally cost $1200 including 5% sa

Whitepunk [10]

Answer:

$480

Step-by-step explanation:

According to the problem, calculation of the given data are as follows,

Original cost including sales tax = $1,200

Discount = 60%

So, we can calculate the cost of TV after discount by using following formula:

Cost of TV after discount = $1,200 - ( $1,200 × 60%)

= $1,200 - $720

= $480

Hence, Cost of TV after discount is $480.

6 0

3 years ago

A large amount of peanuts was divided equally into 6 small bags. The total number of peanuts, p, was 342. Which statements can b

kompoz [17]

Answer:

Step-by-step explanation:

6 P = 342

To solve the question, you need to divide by 6

You don't multiply

The operation is division

The variable is the number of peanuts in each bag.

The answer is 57

The last two are incorrect.

x/p // 6 / end fraction

start fraction /p * end fraction /6

This doesn't make an awful lot of sense to me. But it is also untrue.

The variable P will never take 342

Answer: True statements

statement 1

Statement 4

8 0

3 years ago

Read 2 more answers

Your boss asks you to interpret the following from a custom paint report he has just received. µ ≥400 ml

UkoKoshka [18]

Answer:

The true mean volume of p

aint in each can is greater than or equals to 400ml

Step-by-step explanation:

The symbol of μ represents the mean of a data.

Mean can be defined as the average value of a set of data

Let consider the question.

We know that

μ ≥ 400ml

Where the sign ≥ means "greater than or equals to"

Which means that μ is greater than or equals to 400ml

So the solution is:

1st blank = greater than

2nd blank = equals to

7 0

3 years ago