Solve to find the value for x in the linear equation: 3(−4x + 5) = 12.

1. Use the distributive property:



2. Use the subtraction property of equality:

3. Division property of equality:


3(−4x) + 3(5) = 12

−12x + 15 = 12

−12x + 15 − 15 = 12 − 15

−12x = −3

Answer:

44

Step-by-step explanation:

D=b²-4ac=(-6)²+4×2×1)=44

Answer:

1/10x(20x^2-60x-11)

Step-by-step explanation:

Answer:

-3/4

Step-by-step explanation:

You just start at the lowest point on the graph, count how many points it goes up which is 3, then you go left 4. So you have 3/4, but because you went left it is -3/4

Answer:

D.

Step-by-step explanation:

The last one has the correct variables and amounts in the right order.

12x + 9y = 120

6x + 14y = 136

Answer:

You need help with both or can I just help with one ?

Step-by-step explanation:

Answer:

14,275

1013

Step-by-step explanation:

1: To get the population in the year 2001 we would have to multiply 4500 by 1.08. To get the population in 2002 we would have to multiply: 4500(1.08)(1.08) or 4500(1.08)^2  

Therefore you can write the following equation

4500(1.08)ⁿ where n is the number of years

we need is in 2015 and so n=15 so we have

4500(1.08)¹⁵=14274.5 which you should probably round to 14275

The second one is very similar to the first

to get from 1990 to 1991 you would multiply 5000*.93

so our equation would be

5000(.93)ⁿ where n is the number of years

1990-2012 is 22 so we have

5000(.93)²²=1012.96 which rounds to 1013

Answer:

Third side = 8.34 cm

Step-by-step explanation:

Given that,

The perimeter of a triangle, P = 22 cm

One side of a triangle, b = 9 cm

The area of the triangle, A = 20.976 cm²

The formula for the area of a triangle is given by :

[tex]A=\dfrac{1}{2}\times b\times h\\\\h=\dfrac{2A}{b}\\\\h=\dfrac{2\times 20.976}{9}\\\\h=4.66\ cm[/tex]

Perimeter = Sum of all sides

9 cm + 4.66 cm + x = 22

x = 22 - 13.66

x = 8.34 cm

So, the third side of the triangle is 8.34 cm.

Answer:

12

Step-by-step explanation:

To find range, you subtract the largest and smallest number :)

Answer:

Amount left = 2040

Step-by-step explanation:

Given that:

Per year salary = 12,000

Amount spent on transport = 10%

Transport = [tex]\frac{10}{100}*12000[/tex] = 0.1 * 12000

Transport = 1200

Tax = 5%

Tax = 0.05 * 12000

Tax = 600

Total = 1200 + 600 = 1800

Amount left = 12000 - 1800 = 10200

Food = 80% of remainder

Food = 0.8 * 10200

Food = 8160

Amount left after food = 10200 - 8160 = 2040

Hence,

Amount left = 2040

Answer: C) statistic.

Step-by-step explanation:

Here, 79% is a measure of proportion of respondents agreed that the roach disk was effective from the sample in he study.

So, The number 79% is a statistic.

Correct option: C) statistic

Answer:

*dies of boredom*

Step-by-step explanation:

EH, MWAH

Answer:

Step-by-step explanation:

<NOC is 31 because it is a vertical angle to <BOK, which is also 31

<DOC is 62 because it is two times the bisected <NOC. 2*31=62

<DON is 31 because it is the bisected angles <DON and <NOC are equal.

<TOC is 118 because <KOT and <NOC are both 31 degrees. Since they lie on a line together, the three angles should add up to 180 degrees. 180-31-31 = 118

I hope this helps! :)

Answer:

Scale factor = [tex]\frac{1}{3}[/tex]

Step-by-step explanation:

Given question is incomplete; find the question in the attachment.

Scale factor = [tex]\frac{\text{Dimension of image}}{\text{Corresponding dimension of preimage}}[/tex]

Scale factor = [tex]\frac{\text{Dimension of image rectangle B}}{\text{Corresponding dimension of preimage rectangle A}}[/tex]

From the figure attached,

Length of rectangle B = [tex]\frac{20}{3}[/tex]

Length of rectangle A =  20

Scale factor = [tex]\frac{\frac{10}{3}}{10}[/tex]

                    = [tex]\frac{\frac{10}{3}}{10}[/tex]

                    = [tex]\frac{1}{3}[/tex]

Therefore, image rectangle A is dilated with by a scale factor of [tex]\frac{1}{3}[/tex].

Answer:

four and two hundred ninety-two thousandths.

Answer:12.8 hours

Step-by-step explanation:divide 5 by 4 you get 1.25 witch is one hour 15 min then you times 5 by 3 then add

Sherry make 16 pies in 12.9 hours.

What is Division method?

Division method is used to distributing a group of things into equal parts.

Given that;

Sherry can make 5 pies in 4 hours.

Now,

Since, Sherry can make 5 pies in 4 hours.

So, Sherry can make 1 pies in = 4/5 hours.

Thus, Sherry can make 16 pies in = 16 x 4/5 hours.

                                                    = 64/5 hours

                                                    = 12.9 hours

So, Sherry make 16 pies in 12.9 hours.

Learn more about the division visit:

https://brainly.com/question/24798355

#SPJ6

Answer:

give equation plz

Step-by-step explanation:

Answer: 10 ft = 10(12) = 120 inches. Area = length x width. Area = 96(120) = 11520 sq. in. An 8 inch square = 8 x 8 = 64 sq. in. 11520 divided by 64 = 180 tiles.

Step-by-step explanation:

Answer:

its 540

Step-by-step explanation:

Answer:

x = t - p

Step-by-step explanation:

p + x = t

subtract p from both sides.

x = t - p

answer:

9

basically whatever is in between the lines make it a positive!

heres another example

|-9|

= 9

|1|

= 1

Answer: 9 (nine) is the natural number following 8 and preceding 10.

I hope this is what you need. Sorry if it isnt

Step-by-step explanation:

Have a good night

Answer:

minutes

Step-by-step explanation:

Let x be the time in the beginning (in minutes).

Given: The track team is trying to reduce their time for a relay race.

First they reduce their time by t^1=2.1 minutes.

Then they are able to reduce that time by t^2=1/10

If their final time is 3.96 minutes, then

X - t^1  - t^2 = 3.96

=> X = 3.96 + t^1 + t^2

=> X = 3.96 + 2.1 + 1/10

=>  X = 6.16

Answer:

a.) 26< a 28  

b.) 4

Step-by-step explanation:

a.) After looking at the age in years collum you can notice that all of ages have a difference of 2. With this you can infer that the missing number is 28.

b.) To find the mean add up all the numbers in the frequency column.

3+2+7+8+0=20

Divide that by the amount of numbers. There are 5 numbers so 20/5=4.

Hope this helps!

Answer:

Call x is childrens

Call y is adults

x + y = 386 (1)

1,75x + 2,5y = 807,5 (2)

(1) => x = 386 - y => (2) 1,75 ( 386-y )+2,5y = 807,5

0,75y=132 => y = 176 and x = 210

Step-by-step explanation:

Answer: 4?

Step-by-step explanation: hehe

(is brainliest to much to ask for?) THaNK YOU

Answer:

2+2=4

Thanks for points!! :)

Answer:

[tex]m=-\frac{5}{3}[/tex]

Step-by-step explanation:

Answer:  y = 4x + 6

Step-by-step explanation:

Isolate y on the left by adding 4x to both sides of the equation.

In slope intercept form , now you have the slope, m = 4

And the y-intercept, b = 6

The distance to Johns's grandmother's house is 90 miles.

Speed is the ratio of total distance to total time taken, it is given by:

Speed = distance / time

Let x represent the speed that John used and d represent the distance, hence:

x = d/2

Also when taken 15 minute longer (0.25 hours):

x - 5 = d/(2 + 0.25)

x = d/2.25 + 5

Equating:

d/2 = d/2.25 + 5

d = 90 miles

The distance to Johns's grandmother's house is 90 miles.

Find out more on speed at: https://brainly.com/question/4931057

Answer:

The distance to Johns's grandmother's house is 90 miles.

Speed

Speed is the ratio of total distance to total time taken, it is given by:

Speed = distance / time

Let x represent the speed that John used and d represent the distance, hence:

x = d/2

Also when taken 15 minute longer (0.25 hours):

x - 5 = d/(2 + 0.25)

x = d/2.25 + 5

Equating:

d/2 = d/2.25 + 5

d = 90 miles

The distance to Johns's grandmother's house is 90 miles.

Answer:

1:3:2 would be your answer

Step-by-step explanation:

Considering there are 6 marbles in the bag, 1/6 would be 1, 1/2 would be 3, and 1/3 would be 2.