7e = f
What does it mean when a letter and number are together like this

Answer:

y = –7x – 11

6x – 4y = 10

Step-by-step explanation:

From the question given above, we obtained:

x = –1

y = –4

y = ?x – 11 ....... (1)

6x – ?y = 10b......... (2)

Let the two unknown be a and b. Thus the above equation becomes:

y = ax – 11 ......... (3)

6x – by = 10 .......(4)

Next, we shall determine the value of 'a' and 'b'. This can be obtained as follow:

For a:

y = ax – 11

x = –1

y = –4

–4 = a(–1) – 11

–4 = –a – 11

Collect like terms

–4 + 11 = –a

7 = –a

Multiply through by –1

a = –7

For b:

6x – by = 10

x = –1

y = –4

6(–1) – b(–4) = 10

–6 + 4b = 10

Collect like terms

4b = 10 + 6

4b = 16

Divide both side by 4

b = 16 / 4

b = 4

Finally, we shall substitute the value of a and be into equation 3 and 4 respectively.

y = ax – 11

a = –7

y = –7x – 11

6x – by = 10

b = 4

6x – 4y = 10

Therefore, the complete equation are:

y = –7x – 11

6x – 4y = 10

9514 1404 393

Answer:

  D.  37.5 square units

Step-by-step explanation:

There are a couple of ways to figure this.

1. The altitude KM is the geometric mean of the segment lengths ML and MJ

  KM = √(ML·MJ)

  ML = KM²/MJ = 36/8 = 4.5

Then LJ = 4.5 +8 = 12.5, and the area of the triangle is ...

  A = (1/2)bh

  A = (1/2)(12.5)(6) = 37.5 . . . square units

__

2. Triangle LKM is similar to triangle KJM. The scale factor is ...

  KM/JM = 6/8 = 3/4

Then the area of triangle LKM is (3/4)² = 9/16 of the area of triangle KJM.

The total area is ...

  Area of LJK = (area of KJM)×(1 + 9/16)

  = (1/2)(8)(6)(25/16) = 75/2 = 37.5 . . . square units

Answer:

eight hundred seventy five thousand five hundred eighty four

Step-by-step explanation:

Answer:

Step-by-step explanation: When dealing with fractions in the way they are used in this problem the word "of" (as in "1/32 OF the total sales") means to multiply.

the total sales") means to multiply.

So we can write an equation as:

c

=

r

⋅

s

Where:

c is the commission earned, what we are solving for in this problem.

r  is the commission rate -  1/

32  in this problem

s  is the total sales - $24,000 in this problem.

Substituting and calculating  c  gives:

c

=1/32 x $24,000

c=$24,000/

32

c

=

$

750

Answer:

16

Step-by-step explanation:

add all the numbers together and divide by amount of present numbers

Answer:

16

Step-by-step explanation:

20+15+19+16+10= 80

80 divided by 5 is 16

to find the mean you add all of the numbers up and then divide the sum by the number of numbers there are hope this helps have a good rest of your night :) ❤

Answer:

-3(3x-5y-9)

Step-by-step explanation:

Answer:

I think 10

Step-by-step explanation:

you ad up the books so you would have 10+15+8+7=40. Then you divide by 4 to get the average. So it equals 10.

Answer:

70

Step-by-step explanation:

Answer:

[tex] \purple {\bold {m\angle A =70\degree}} [/tex]

Step-by-step explanation:

ABCD is a trapezoid. AB || DC and AD is transversal...(given)

[tex] AD \cong BC.. (given) [/tex]

Therefore, ABCD is an isosceles trapezoid.

Measures of base angles of isosceles trapezoid are equal.

[tex] \therefore m\angle D =m\angle C[/tex]

[tex] \because m\angle C =110\degree... (given) [/tex]

[tex] \therefore m\angle D =110\degree [/tex]

[tex] m\angle A+ m\angle D =180\degree [/tex]

(interior angles on the same side of transversal)

[tex] m\angle A+ 110\degree =180\degree [/tex]

[tex] m\angle A =180\degree -110\degree [/tex]

[tex] \purple {\bold {m\angle A =70\degree}} [/tex]

Answer:

$47

Step-by-step explanation:

46.875 rounded would be 47.

Answer:

a  -1

b 1

c 3

d 2

no

Step-by-step explanation:

Answer:

262,000

Step-by-step explanation:

Answer:

yes i understand, but whats next? sorry but i cannot answer it

Step-by-step explanation:

Answer:

56 feets

Step-by-step explanation:

Length, L = 15

Width, W = 18

Using the relation ; Perimeter, P :

P= 2L + 2W

P = 2(15) + 2(18)

P = 20 + 36

P = 56 feets

Answer:

i don't know how to answer

Step-by-step explanation:

Answer:

Change the positive numbers to negative and change the negative numbers to positive.

Step-by-step explanation:

I hope this helps u! :D

Answer: Jakob will run 3 1/2 miles in 30 min

Step-by-step explanation: you need to take 7 in half  because half of an hpur is 30 minutes so half of seven is 3 1/2 so that is the answer

Answer:

3.5 miles

Step-by-step explanation:

1 hour = 60 minutes

Proportions:

7 miles = 60 minutes

J miles = 30 minutes

J = 7*30/60

J = 3.5 miles

Answer:

27

Step-by-step explanation:

Answer:

27.

Step-by-step explanation:

(-43)+37+33

= 37 + 33 - 43

= 70 - 43

= 27.

Answer

They are perpendicular

Step-by-step explanation:

I got it right on my test

Answer:

628 inches²

Step-by-step explanation:

the equation for surface area is SA=2(lw+lh+hw) so..

1. 2×(16×14 + 16×3 + 3×14)

2. 2×(224+48+42)

3. 2×314

4. 628

Hope this helps! :)

Answer:

254.34 inches²

Step-by-step explanation:

The formula for area of a circle is: pi x r². The radius is half of the diameter (18) which in this case would be 9. Square it to get: 81. Multiply by pi: 81 x 3.14 = 254.34.

Hope it helps!

Answer:

I believe it is around 56.52

Step-by-step explanation:

3.14

x

 18

--------

56.52

Answer:

[tex] \sqrt{} \frac{1}{49} = \frac{1}{7} [/tex]

Answer:

EG so that GF ≈ EF

Step-by-step explanation:

Answer:

The answer is 380

Step-by-step explanation:

[tex]g(100) = 4(100 - 5) \\ = 4 \times 95 \\ = 380[/tex]

Answer:

g(100) = 380

Step-by-step explanation:

Replace x with the given number; which in this is case is 100

g(100) = 4(100-5)

g(100) = 4(95)

g(100) = 380

hope this is right and helps :)

Answer:

B is the closet to pi hsiebfjwjgsbe9fbe

Answer:

EF = 8

Step-by-step explanation:

The midsegment EF is half the sum of the parallel bases , that is

x = [tex]\frac{x-5+2x-3}{2}[/tex] ( multiply both sides by 2 to clear the fraction )

2x = 3x - 8 ( subtract 2x from both sides )

0 = x - 8 ( add 8 to both sides )

8 = x

Thus

EF = x = 8

AD = x - 5 = 8 - 5 = 3

BC = 2x - 3 = 2(8) - 3 = 16 - 3 = 13

Answer:

true

Step-by-step explanation:

Answer:

Very good art and I think true

Step-by-step explanation:

Step-by-step explanation:

f(x) = 4x-5

g(x) = 2x

(f + g)(x)=f(x) +g(x)=4x-5+2x=6x-5

Answer:

3$

Step-by-step explanation:

Answer: 91

Step-by-step explanation: 2+89=91