Which expression means “12 less than the product of 2 and a number b”?

Answer:

x = [tex]\frac{2}{5}[/tex]

Step-by-step explanation:

Given

[tex]\frac{1-x}{1+x}[/tex] = [tex]\frac{2x+1}{-2x+5}[/tex] ( cross- multiply )

(2x + 1)(1 + x) = (1 - x)(- 2x + 5) ← expand parenthesis on both sides using FOIL

2x + 2x² + 1 + x = - 2x + 5 + 2x² - 5x , simplify

2x² + 3x + 1 = 2x² - 7x + 5 ( subtract 2x² from both sides )

3x + 1 = - 7x + 5 ( add 7x to both sides )

10x + 1 = 5 ( subtract 1 from both sides )

10x = 4 ( divide both sides by 10 )

x = [tex]\frac{4}{10}[/tex] = [tex]\frac{2}{5}[/tex]

Answer:

 x = 2/5

Step-by-step explanation:

[tex]\frac{1-x}{1+x}=\frac{2x+1}{-2x+5}[/tex]

Cross multiply,

(1 - x)(-2x + 5) = (2x +1)(1 + x)

Use FOIL method to multiply,

1*(-2x) + 1*5  - 2x *(-x) + 5*(-x) =2x *1  + 2x *x  + 1*1 + 1*x

             -2x + 5  + 2x² -5x    = 2x + 2x² + 1 + x

Combine like terms,

              -2x - 5x + 2x² + 5 = 2x² + 2x +x  + 1

                      -7x + 2x² + 5 = 2x² + 3x + 1

           -7x + 2x²  - 2x² - 3x  = 1 -  5

                             -7x - 3x    = - 4

                                       -10x = -4

                                          x = -4/-10

                                          x = 2/5

Answer:

D. 2(6x + 5 + 2y)

Step-by-step explanation:

You have to use the distributive property to get your answer. 2 × 6x = 12x; 2 × 5 = 10; 2 × 2y = 4y.

Answer:

see explanation:

Step-by-step explanation:

We use the property that  (all numbers being positive)

0 < a < b < c  -->  0< a^2 < b^2 < c^2

so:

1 <  2 <   sq(7)   < 3 < 4 <  5            

1 <  4 <  7   < 9 < 16 < 25      

Answer:

40

Step-by-step explanation:

200 ÷ 5 = 40.

Answer:

Step-by-step explanation:

A fucntion is basically a machine that follows the instructions it's given and based on those instructions it gives you an answer. So in the function

f(x)=-x+7, our total output (answer) is going to be whatever our "x" is and adding that to 7.

So lets start with -2, plug in -2 for the x variable

f(x)=-(-2)+7, when we solve this we get f(x)=2+7 (negative*negative=positive)

so our final function would be f(x)=9

We can solve the other functions by plugging in the x variable in the same way:  

f(x)=-(-1)+7  this simplifies to f(x)=1+7, so f(x) equals 8

f(x)=-(0)+7   this simplifies to f(x)=0+7, so f(x)=7

f(x)=-(1)+7  this simplifies to f(x)=-1+7, so f(x)=6

f(x)=-(2)+7 this simplifies to f(x)=-2+7, so f(x)=5

Answer:

x=19

Step-by-step explanation:

90-71=19

Answer:

The answer is $6216.66

Step-by-step explanation:

(8*40)+6%*×=$692; 320 + 0.6x = 692; .6×=692-320; 0.6x=373; ×=373÷.6;

x=6216.66

Total earnings= $692

Total hours worked = 40 hours

Earnings per hour = $8

Total hourly earnings = Total hours worked × Earnings per hour

= 40 hours × $8

= $320

Commission earnings = Total earnings - Total hourly earnings

= $692 - $320

= $372

Total amount of her sales for the week = x

6% of x = $372

0.06 × x = 372

0.06x = 372

x = 372 / 0.06

x = $6,200

Therefore, her total amount of her sales for the week is $6,200

Read more:

https://brainly.com/question/11481095

Answer:

[tex]m=-54[/tex]

Step-by-step explanation:

We have the equation [tex]3-\frac{m}{6}=12[/tex] and we want to solve for m using the Properties of Equality.

Steps:

1) Subtraction Property of Equality (subtract 3 from both sides):

[tex](3-\frac{m}{6})-3=(12)-3[/tex]

[tex]-\frac{m}{6}=9[/tex]

2) Multiplication Property of Equality (multiply both sides by -6):

[tex]-6(\frac{m}{-6})=-6(9)[/tex]

[tex]m=-54[/tex]

Therefore, our final answer is [tex]m=-54[/tex]

Answer:

yessir $22.10 for 2.6 pounds. Come by the market sometime eh?

Answer:

-1

Step-by-step explanation:

Distribute

2(x-3)=-8

2x-6=-8

2x=-2

DIVIDE 2 on both sides

x=-1

Answer: $1,260

Explanation: Because Jordan is depositing $25 every week, for 36 weeks, we'd need to multiply 25 x 36. The product would be $900. But since Jordan had $360, we need to add 900 + 360 to get the final sum. Therefore, Jorndan would have $1,260 after 36 weeks.

I hope this helped!

Good Luck <3

the reflected image of the point (5,-1) under the y-axis is (-5, -1).

A pair of numbers called coordinates are used to locate a point or a form in a two-dimensional plane. The x-coordinate and the y-coordinate are two numbers that define a point's location on a 2D plane.

Given a coordinate (5, -1), find the image of the coordinate under a reflection in the y-axis.

Since

thus, Coordinates of image = (-5, -1)

Therefore, the image of the point (5,-1) under a reflection in the y-axis is (-5, -1).

Learn more about coordinates here:

https://brainly.com/question/20282507

#SPJ2

Answer:

9y - 3xy

Step-by-step explanation:

3y(3 - x)

Distribute;

3y*3 - 3y*x = 9y - 3xy

Answer:

Distance is 2.2.

Step-by-step explanation:

Use the Pythagorean theorem.

[tex]Distance=\sqrt{(6-4)^{2} +(2-1)^{2} } =\sqrt{4+1} =\sqrt{5}=2.23[/tex]

Answer:

y=-3x-5

Step-by-step explanation:

6x+2y=-10

2y = -6x-10 (you need to isolate the y and so i took 6x and subtracted it from both sides)

y = -6/2x-10/2 ( dont feel like explaining)

divide them (-6/2 and -10/2) to get

y=-3x-5

Hope i helped

Answer: y=-1/2x-3.5

Step-by-step explanation: Slope rise 1(up) run 2(left) so it's -1/2. Y-intercept between-3 and -4 so it's -3.5.

Answer:

$48.13

Step-by-step explanation:

before $44.98

sale tax 7.00% or 3.15

after-tax price $48.13

Answer:

yous welcome

Step-by-step explanation:

6. is 2

7. is 1

8. is 100

Answer:

4x times 6

Step-by-step explanation:

Answer:

Step-by-step explanation:

on y axis, put let line cross -6

plot a point at 3,-8

plot at point at 6,-10

plot a point at -3,-4

plot a point at -6,-2

etc.

Answer:

m+5n+7

Step-by-step explanation:

5m-n+7-4m+6n

=5m-4m-n+6n+7

=m+5n+7

Answer:

27abc

you multiply the coefficient and write all the variables after

[tex]3a \times 9bc \\ = (3 \times 9)abc \\ = 27abc[/tex]

The correct answer is option (3)

Hope It Helps Uh! ❤

Answer:

The answer is x = - 3

Step-by-step explanation:

You multiply both sides of the equation by  4 x^3 = -27

Write or type it in exponential form with an exponent of  3 x^3 +( -3)^3

Take the root of both sides of the equation  x^3= (-3) ^3

Solution is: x = - 3

Hope this helps! :) <33

Answer:

-7/4=-6.25. Both sides need to equal -6.25.

1/4(3)^3 = -6.25

-6.25 = -6.25

x = 3

Step-by-step explanation:

Answer:

true

Step-by-step explanation:

i do beleive the answer is false because one answer is a fraction an the other a deciaml with 2 different values

Answer:

the answer is a because all the other ones are multiplying a different number

Answer:

the answer is a because you have to put the x after the five.

Step-by-step explanation:

I did this last year in my math class

Answer:

alright yeah

Step-by-step explanation:

where should we look first?

Answer:

my man... he isn't coming back even if you want him to...

Step-by-step explanation:

I am sorry.

Given:

Jan and Julie started their ride at 09:30 and finished at 15:15.

Stopped for a drink = 20 minutes

Lunch = 45 minute

Rest = 10 minutes

To find:

Time they are riding on their bikes (excluding stops).

Solution:

Jan and Julie started their ride at 09:30 and finished at 15:15.

So, total time of ride including stops is 5 hours 45 minutes or we can say 345 minutes calculated as

[tex]30+60+60+60+60+60+15=345\text{ minutes}[/tex]

We need subtract Drink, lunch and rest time from the total time to get the Time they are riding on their bikes (excluding stops) is

[tex]345-20-45-10=270 \text{ minutes}[/tex]

Therefore, the total time they are riding on their bikes (excluding stops) is 270 minutes.