Solve the equation x + 5 = 12. Show and justify each step you take to solve the equation. x + 5 = 12 Write the equation. = 12 x + 5 Х X = Coning is not nermitted.​

9514 1404 393

Answer:

Step-by-step explanation:

1. I find it convenient to use variable names that remind me what they stand for. Here, we can use "j" to represent Joanne's earnings, and "e" to represent Erin's earnings.

  j = 57 . . . . . Joanne earned $57

  j = (7/8)e -13 . . . . . Joanne's earnings were $13 less than 7/8 of Erin's

Substituting for j, we get one equation for Erin's earnings

  57 = (7/8)e -13

Using 'x' for Erin's earnings, this is ...

  57 = (7/8)x -13

__

2. We can solve the equation as follows:

  70 = 7/8x . . . . . . add 13

  80 = x . . . . . . . . . multiply by 8/7

Erin earned $80 in tips.

Answer:

Step-by-step explanation:

57 = ⅞x - 13

x= 70(8/7) = $80

Answer:

[tex]\boxed {\boxed {\sf a= 705.6 \ units^2 }}[/tex]

Step-by-step explanation:

Since we are given the central angle in radians, we should use this formula for the sector area:

[tex]a=\frac{1}{2}r^2 \theta[/tex]

where r is the radius and θ is the angle in radians.

The radius is 14 units and the angle is 7.2 radians.

[tex]r= 14 \ units \\\theta= 7.2[/tex]

Substitute the values into the formula.

[tex]a= \frac{1}{2} (14 \ units)^2 (7.2)[/tex]

Solve the exponent.

[tex]a=\frac{ 1}{2} (196 \ units^2)(7.2)[/tex]

[tex]a=\frac{ 1}{2}(1411.2 \ units^2)[/tex]

Multiply by 1/2 or divide by 2.

[tex]a= 705.6 \ units^2[/tex]

The area of the sector is 705.6 square units.

Answer:

81

Step-by-step explanation:

9x9

2x2

Answer: 81

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

Plug it in.....

h(0) = 2.5 * 0 + 7 = 7

Answer:

Hannah = 20, Sal = 4

Step-by-step explanation:

Total number of sweets = 24

Ratio in which the sweets was shared;

Hannah : Sal = 5 : 1

Hannah gets:

Hannah = 5 / ( 5+1)  * 24 = 5/6  * 24 = 5 * 4 = 20

Sal gets:

Sal = 1 / ( 5+1)  * 24 = 1/6  * 24 = 1 * 4 = 4

Answer:

20x simplified

4x(2+3) factored

Answer:

slope is -1/4

Step-by-step explanation:

[tex]\frac{-4}{12}[/tex]=[tex]\frac{-1}{4}[/tex]

[tex]\frac{-2}{8}[/tex]= [tex]\frac{-1}{4}[/tex]

and so on...

formula: [tex]\frac{x}{y}[/tex]

hope this helps!!!

Answer:  19 people will be represented by an angle 152 degrees.

Step-by-step explanation:

Set up a  proportional relationship to solve for this

[tex]\frac{360}{152} = \frac{45}{y}[/tex]        Cross multiply

360y = 6840   Divide both sides by 360

y =  19

Answer:

Ratios of corresponding sides are equal:

Ratios:

If ΔABC ~ ΔXYZ, the ratios below should be equal:

Ratios are different so the triangles are not similar

Answer:

A,B,D

Step-by-step explanation:

it just has to equal -5 lol

Answer:

A,B,D

Step-by-step explanation:

Answer:

55

Step-by-step explanation:

.20*55=11-3=8

Answer:

it is b i expect

Step-by-step explanation:

right?

Answer:

I’m answering so the other peep can get brainliest she’s correct I think I’m pretty sure I think so thx for points have a great day byee

Step-by-step explanation:

Answer:

D. r  ≤  − 1

good luck, i hope this helps :)

Answer:

Step-by-step explanation:

Hello,

1. Follow PEMDAS, for instance, which is Parentheses, Exponents, Mult., Div., and so on.

This will help you simplify on each side of the inequality sign.

2. Signs of inequalities will switch (> becomes <, and < becomes >) when dividing by a negative number on both sides of an inequality.

Try to work with this first. If you need more help, let me know.

Answer:

congruent

Step-by-step explanation:

Answer:

Step-by-step explanation:

600/40 = $15 an hour

double: $30 an hour

30 x 14 = 420

600 + 420= $1020 for the week

Answer:

Dave has 9 bottles of water

Step-by-step explanation:

12-3=9

Answer:

6 a - 13 b - 21 c - 13 d - 29 e -29 f - 122

y=15 and x=3

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

The equation [tex]y=5x+10[/tex] is given in slope-intercept form. Slope-intercept form is a way of writing the equation of a line in the format [tex]y=mx+b[/tex], such that the coefficient of the parameter (x) is the slope, and constant (b) is the y-intercept. What that essentially means is,

[tex]y = mx + b\\\\m=slope\\b = y-intercept.[/tex]

The slope of a line is its rate of change, and the y-intercept is where the graph of the line intersects the y-axis. One can apply this knowledge here by saying that, the equation [tex]y=5x+10[/tex] is given in the slope-intercept form, and the coefficient ([tex]m[/tex]) equals ([tex]5[/tex]), therefore the slope is ([tex]5[/tex]).

Answer:

Step-by-step explanation:

The absolute value, as "distance from zero", is used to define the absolute difference between arbitrary real numbers, the standard metric on the real numbers. Complex numbers [ edit ] The absolute value of a complex number z {displaystyle z} is the distance r {displaystyle r} of z {displaystyle z} from the origin.

Answer:

absolute number

Step-by-step explanation:

Answer: 24 square inches

Step-by-step explanation:

To get the whole area Multiply length x width

12 x 7 = 84

Now we get the area of the space in the rectangle

6 x 5 = 30 and multiply that by 2 since there are 2 spaces

in the rectangle.

30 x 2 = 60

84 - 60 = 24

Answer:

Step-by-step explanation:

3(2+(2/3))+x=18

3(8/3)+x=18

(24/3)+x=18

8+x=18

x=10

He must run another ten miles.

Answer:

10.88

Step-by-step explanation:

3 * 2 3/8 = 6 9/8 = 7 1/8 miles

Answer:

Slope: -6 Y-intercept: -4

Step-by-step explanation:

You have to put the 4 on the same side as the expression so that y-6x-4=0 so the -6x is the slope and the -4 is the y-int because of y=mx+b

Answer:

8

Step-by-step explanation:

Answer:

It is 2

Step-by-step explanation:

The greatest common factor is 2 because 2×16=32

also works for 24 because 2×24=48

then yes it works again for 2×12=24

division is also very helpful