the difference of Ellen’s age and her sister Mary’s age is 4 years. Ellen is 5 years less than twice Mary’s age.

How old is Mary?

Answer:

m angle B = 68°

Step-by-step explanation:

Since they are supplementary, they add up to 180°

(2x+26) + (x+25) = 180

add like terms together

3x+26+25=180

simplify the left side

3x+51=180

subtract 51 from both sides

3x=129

divide both sides by 3

x=43

Then you plug in x into measure B

(43)+25

68

Answer:

The slope is 10/8

Step-by-step explanation:

You would rise 10 units and you would run 8 units.

Answer:

I think c?

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

The Triangle Inequality Theorem states that the sum of the lengths of any 2 sides of a triangle must exceed the length of the third side.

8.6+6.6>3.3 is true

6.6+3.3>8.6 is true

3.3+8.6>6.6 is true

Answer:

False, True, Falso True

Step-by-step explanation:

Slope is 3/1 or 3

Line hits (0,-5)

Answer:

645π/2

Brainlist please :)

Answer:

Use a caculator?

Step-by-step explanation:

Answer: 67.37 for adult 45.91 for child

Step-by-step explanation:

Answer:

a) $15.30

b) $32.30

Step-by-step explanation:

a) 0.10 x $17.00 = $1.7

$17.00 - $1.7 = $15.30

You will save $15.30 on the DVD

b) $15.30 + $17.00 = $32.30

You will spend $32.30 on the DVD

Answer:

Step-by-step explanation:the answer is option A as 1 • 3 =3 and 3+4=7

Answer:

hurt himself if he is 5 pieces away from jail in monopoly and this is his 9th time

Step-by-step explanation:

Answer:

x        y

-2       0

0       2

Slope: 1

y-intercept = 2 ( 0, 2 )

Hope this helped!

Have a supercalifragilisticexpialidocious day!

Answer:

x=6

b= 126

Step-by-step explanation:

8x+78 = 2x+114

8x-2x = 114-78

6x=36

x=6

--------

b=2x6+114

b= 126

Answer:

17,1

Step-by-step explanation:

I just did this question on the benchmark

Answer:

(3, 1/2)

Step-by-step explanation:

The x-coordinate of the midpoint of AB is the arithmetic mean of 2 and 4, which comes out to 3.  The y-coordinate of the midpoint of AB is the arithmetic mean of 3 and -2, which comes out to 1/2.

Thus the midpoint of AB is (3, 1/2).

Answer:9

Step-by-step explanation:

Think of it this way:

If 15=100%

then x= 60%

So what you do is you multply 60 times 15 and divide it by 100 to give you the answer of 9. To me this is the simplest way to do it, I believe it’s called butterfly multiplying. You cross multiply and then you divide.

Answer: No

Step-by-step explanation: Because.

Answer:

trapezoid

Step-by-step explanation:

its okay i had to look it up to make sure i was right lol

Can i have brianliet plz

Answer: you do the length times width

Step-by-step explanation:

Answer:

"At this rate" for me usually will be some sort of dividing

6 gifts. 6 yards of ribbon.

Answer: Its the rectangle thats going upwards not flat.

Step-by-step explanation:

Answer: The rectangle at the very top and the one at the bottom are congruent.

Step-by-step explanation: REMEMBER YALL: congruent means the same( in geometry)

//Give thanks if helpful :)//

Answer:

(-(7-9))(z)-6z= 8(-6+2)

Simplify

-(-2)(z) -6z =8(-6+2)

Multiply 8*-6 and 8*2

2z -6z= -48+16

Combine like terms

2z+-6z =-32

-4z=-32

Divide both sides by -4

z=8

Step-by-step explanation:

Answer:

f(0)=9

Step-by-step explanation:

All you do is plug in x=0 into the function.

In this case:

f(x)=10^x+8

f(0)=10^0+8

f(0)=1+8

f(0)=9

Therefore, f(0)=9

Answer:

9

Step-by-step explanation:

You put 0 for x

10^0=1, so 1 +8 is 9

Answer:

x<-60

Step-by-step explanation:

just used photomath

Answer:

x<-60

work:

(-10) x/-10 > 6 (-10)

x< -60 flip sign because multiply by negative number

hope this helps :)

Answer:

The perimeter is 37 inches (3 ft. 1 in.)

Step-by-step explanation:

24 + 13 = 37

12 x 2 = 24

6.5 x 2 = 13

Answer:

B.) (-5, 6)

Step-by-step explanation:

to solve algebraically, test the coordinate pairs in the equation [tex]y = -\frac{2}{5}x + 4[/tex]

to solve graphically, enter the equation [tex]y = -\frac{2}{5}x + 4[/tex] into a graphing calculator and graph the coordinate pairs as well to see which one is on the line.

(2, 3) is NOT a solution.

steps for solving algebraically:

first, identify the x and y values in your coordinate pair.

plug in 2 for x in [tex]y = -\frac{2}{5}x + 4[/tex] (it doesn't matter if you plug in x or y first, i personally always start with the x-value but it really doesn't matter what order you do it in.)

now plug in 3 for y.

your equation is now 3 = -2/5(2) + 4. begin simplifying by multiplying -2/5 and 2.

now add -0.8 + 4 to simplify the rest of the right side of the equation.

3 and 3.2 are not equal, therefore (2, 3) is not a solution.

(-5, 6) IS a solution.

steps for solving algebraically:

first, identify the x and y values in your coordinate pair.

plug in -5 for x in [tex]y = -\frac{2}{5}x + 4[/tex] (it doesn't matter if you plug in x or y first, i personally always start with the x-value but it really doesn't matter what order you do it in.)

now plug in 6 for y.

your equation is now 6 = -2/5(-5) + 4. begin simplifying by multiplying -2/5 and -5.

now add 2 + 4 to simplify the rest of the right side of the equation.

6 and 6 are equal, therefore (-5, 6) is a solution.

although we have identified (-5, 6) as a solution, i'm still going to check the rest of the points just to be sure! :)

(6, 2) is NOT a solution.

steps for solving algebraically:

first, identify the x and y values in your coordinate pair.

plug in 6 for x in [tex]y = -\frac{2}{5}x + 4[/tex] (it doesn't matter if you plug in x or y first, i personally always start with the x-value but it really doesn't matter what order you do it in.)

now plug in 2 for y.

your equation is now 2 = -2/5(6) + 4. begin simplifying by multiplying -2/5 and 6.

now add -2.4 + 4 to simplify the rest of the right side of the equation.

2 and 1.6 are not equal, therefore (6, 2) is not a solution.

(-2/5, 4) is NOT a solution.

i see that they want to trick you with this one by using the values that are in other spots in the equation... that's crafty

steps for solving algebraically:

first, identify the x and y values in your coordinate pair.

plug in -2/5 for x in [tex]y = -\frac{2}{5}x + 4[/tex] (it doesn't matter if you plug in x or y first, i personally always start with the x-value but it really doesn't matter what order you do it in.)

now plug in 4 for y.

your equation is now 4 = -2/5(-2/5) + 4. begin simplifying by multiplying -2/5 and -2/5.

now add 0.16 + 4 to simplify the rest of the right side of the equation.

4 and 4.16 are not equal, therefore (-2/5, 4) is not a solution.

as for finding the solution on a graph, enter the equation for the line as well as the coordinate pairs into a graphing calculator. here i used a handy little site called desmos in order to graph all of this. the first photo i attached contains what i entered into the calculator, and the second photo i attached shows the graph. as you can see, the only point that is actually on the line is (-5, 6), which is why (-5, 6) is a solution to [tex]y = -\frac{2}{5}x + 4[/tex] , and the other coordinate pairs are not solutions to that equation because they are not on the line.

i hope this helps! have a lovely rest of your day <3

Answer:

its D you don't even need to do all the work bc the same numbers are right there in the equation

Answer:

a=9 , b=14

Step-by-step explanation:

Just do the operation (x+7)(x+2)

x(x)+x(2)+7(x)+7(2)

x^2+2x+7x+14

x^2+9x+14

So a=9 and b=14