como simplifica essa expressão: 2*(x+5)+3*(5x+6):​

Answer:

80

Step-by-step explanation:

10+10= 20

20+20=40

40+40=80

Answer:

80, -160

Step-by-step explanation:

Each term is being doubled and the sign is reversing for every term. So -10 doubled and flipping the sign results in 20. Doubling 20 and flipping the sign results in -40. So on and so forth.

Answer:

$60

Step-by-step explanation:

set up a proportion and cross-multiply:

3000/400 = cost/450

c = cost

3,000c = 180,000

c = 180/3

c = 60

Price of the ticket of 450 mile trip = $60.

The division is one of the basic arithmetic operations in math in which a larger number is broken down into smaller groups having the same number of items. It is an operation used for equal grouping and equal sharing in math. Division is the opposite of multiplication.

Division Math Formula

The four important terms used in the division operation are dividend, divisor, quotient and remainder. The formula to calculate the division of two numbers is:

Dividend ÷ Divisor = Quotient + Remainder.

Given,

Ticket cost of 3000 mile trip =  $400

Ticket cost of 1 mile trip = $400/3000

Ticket cost of 450 mile trip = $400 × 450 /3000

                                             = $60

Hence, the cost of 450 mile trip is $60.

Learn more about division here:

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Answer:

93.1

24.83

24.13

2755

12.75

0.151

Step-by-step explanation:

Given :

21.1 + 45.99 + 26.0 = 93.09

15.55 + 21.61 - 12.333 = 24.827

14 + 0.8 + 9.33 = 24.13

14.5 * 190 = 2755

5.1 * 2.5 = 12.75

0.15 ÷ 0.991 = 0.151

Answer:

the answer is 21

Step-by-step explanation:

Answer:

4.5hr

Step-by-step explanation:

v=s/t

t=s/v

432km/96km/hr

4.5 hr

km will will cancelled out

The time taken to travel 432 Km at an average speed of 96 Km/h is 4.5 h

Average speed is defined as the total distance travelled divided by the total time taken to cover the distance.

Average speed = Total distance / total time

Average speed = Total distance / total time

96 = 432 / time

Cross multiply

96 × time = 432

Divide both side by 96

Time = 432 / 96

Time = 4.5 h

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Answer:

[tex]78[/tex]

idont know

Answer:

1

Step-by-step explanation:

[tex](\frac{8}{11})^{7- 2*3 - 1} = (\frac{8}{11})^{7- 6 - 1}\\\\=(\frac{8}{11})^{7- 7}\\\\=(\frac{8}{11})^{0}\\\\=1[/tex]

Answer:

B 10 pounds

Step-by-step explanation:

Start with what you know.  You know that almost 5 dollars per pound. and that cashews cost 2 dollars per pound. If there are 10 pounds of cashews, that is 20 dollars worth of cashews.  then if you use your head you will figure out that there are 10 pounds.

Answer:

C

Step-by-step explanation:

Answer:

fourth answer must be correct

(4)

Answer:

x = 5

y = 5

Step-by-step explanation:

In this question you need to solve one equation in order to plug the value into the second one and solve it as well. Lets start with the top one...

2x - x = 5

1x = 5

x = 5

Now we plug that value of x into the second equation

4x - 2y = 10

4(5) - 2y = 10

20 - 2y = 10

-2y = -10

y = 5

Finally, we can see that both x and y have a value of 5.

Answer:

B. both the median and interquartile range of math is larger than science

Step-by-step explanation:

Math: 41, 82, 87, 88, 90, 93, 94, 94, 99

Median: 90

Interquartile range: 9.5

Science: 71, 75, 75, 77, 78, 79, 79, 81, 82

Median: 78

Interquartile range: 5

Answer:

I wanted to simplify since u didn't specify what u wanted: -x^3 + 6x^2 -1

Step-by-step explanation:

I assume this is what you typed: (3x^2 - 1) + (3x^2 - x^3)

-x^3 + 6x^2 -1

Answer:

-x³+6x²-1

Step-by-step explanation: Hope it helps

Answer:

5 folders and 5 pens = yes

6 pens and 6 erasers = yes

1 pen and 4 notebooks = no

3 folders and 7 erasers = no

4 folders and 2 notebooks = yes

Step-by-step explanation:

Max total = $10

(5 folders x 1.29) + (5 pens x 0.70)

6.45 + 3.50 = 9.95

(6 pens x 0.70) + (6 erasers x 0.89)

4.20 + 5.34 = 9.54

(1 pen × 0.70) + (4 notebooks × 2.35)

0.70 + 9.40 = 10.10

(3 folders × 1.29) + (7 erasers × 0.89)

3.98 + 6.23 = 10.21

(4 folders × 1.29) + (2 notebooks × 2.35)

5.16 + 4.70 = 9.86

Answer:

look at the picture i sent......

Answer: 555 feet

Step-by-step explanation:

Answer:

input is doubled.

equation n×2=output

Answer:

The answer is 22

Step-by-step explanation:

The answer is 22 because as you can see, the rule is x2

1 x 2 = 2

6 x 2 = 12

8 x 2 = 16

11 x 2 = 22

Answer:

$50 + ($30 x 12) = $410

Step-by-step explanation:

Answer:

$410.00

Step-by-step explanation:

Answer:

Option 2

Step-by-step explanation:

Option 2 is the linear function because it follows standard equation layout, which is y=mx + c

Answer:

6x+y = 25

3x=14

=> x=14/3 => y = 25/6x = 25/28

Step-by-step explanation:

Answer:

20% of 120 is 24.

Step-by-step explanation:

i need to write 20 letters

Answer:

Exponential

Step-by-step explanation:

The y values are going up by a factor of 2 as x increases.

Answer:

B. $54

Step-by-step explanation:

PEMDAS: Do multiplication and division first

65 - (2*7=14) + (9/3=3)

65-14+3

Go from left to right and solve

51+3=54

Answer:

[tex] \boxed{80}[/tex]

Answer:

y = -2/3x + 3

Step-by-step explanation:

( -3, 5)

Parallel slope = -2/3

Slope-intercept:

y - y1 = m(x - x1)

y - 5 = -2/3(x + 3)

y - 5 = -2/3x - 2

y = -2/3x + 3

Answer:

G = 18.75

Step-by-step explanation:

A. 12.5 * 7.5 = 93.75

B. 10 * 7.5 = 75

93.75 - 75 = 18.75