A meal cost $18.50 at a restaurant, including the 9% tax and the 20% tip.
What was the original cost of the meal?

Answer:

I will do the first one for you 115/24

Step-by-step explanation:

First find the prime number is of the number on the bottom of the fraction

Second after finding the prime numbers multiple all the times number starting with the bigger number’s prime number, and if the other prime number have a pair dont add them into equation. Ex 8-2 2 2 and 4-2 2 the 8 has 3 (2s) cancelling out the 4’s( 2s) other ex. 6-2 3 and 18- 2 3 3 the 18 has a 2 and 3 cancelling out the 6’s 2 and 3 making it multiple 2x3x3

Third after finding this number at step (2) this is the number at the bottom of the fraction making it easy to do any equations on it

Hope this helps :D

Answer: See explanation

Step-by-step explanation:

The possible lengths of the third side would be:

✓hypotenuse = (✓5² + 8²)

= ✓(25 + 64)

= ✓89

= 9.4

OR

8² - 5² = side²

side² = 64 - 25

side² = 39

Side = ✓39

Side = 6.24

Answer:

3

Step-by-step explanation:

2 / (2/3) = 2 * 3/2 = 6/2 = 3

Answer:

[tex]2abcosC = 37[/tex]

Step-by-step explanation:

Given

[tex]a^2 + b^2 - 2abcosC = c^2[/tex]

Required

[tex]2abcosC[/tex]

[tex]a^2 + b^2 - 2abcosC = c^2[/tex]

Add [tex]2abcosC[/tex] to both sides

[tex]a^2 + b^2 - 2abcosC+2abcosC = c^2+2abcosC[/tex]

[tex]a^2 + b^2 = c^2+2abcosC[/tex]

Subtract [tex]c^2[/tex] from both sides

[tex]a^2 + b^2 -c^2= c^2 -c^2+2abcosC[/tex]

[tex]a^2 + b^2 -c^2= 2abcosC[/tex]

From the attachment:

[tex]a = 4[/tex] [tex]b = 5[/tex] and [tex]c = 2[/tex]

So, we have:

[tex]4^2 + 5^2 -2^2= 2abcosC[/tex]

[tex]16 + 25 -4= 2abcosC[/tex]

[tex]37= 2abcosC[/tex]

i.e.

[tex]2abcosC = 37[/tex]

Answer:

A. 37

Step-by-step explanation:

Answer:

STTU either means Specialized Tactical Training Unit  or Surrounding Thyroid Tissue Uptake

Step-by-step explanation:

ST and TU are typically used to measure a line and/or angle in a triangle or shape. This is true because I've seen it multiple times.

May I have brainliest please? :)

Answer:

a.) 94 cm^2

Step-by-step explanation:

3 x 4 = 12

5 x 3 = 15

4 x 5 = 20

12 + 12 + 15 + 15 + 20 + 20 = 94

Answer: 94 cm squared

Step-by-step explanation:

Answer:

ofc! :D

Step-by-step explanation:

i- x represents the input

ii- y represents the output

iii- yes, the input (x) is 4 times greater than the output (y)

b just plot them like normal on a coordinate grid :D

Answer:

16x² + 2x + 9

Step-by-step explanation:

To evaluate h(- 2x) , substitute x = - 2x into h(x), that is

h(- 2x)

= 4(- 2x)² - (- 2x) + 9

= 4(4x²) + 2x + 9

= 16x² + 2x + 9

Answer:

ASA cannot be used because we are only given one angle that is congruent.

Step-by-step explanation:

Answer:

y = 20x + 280

Step-by-step explanation:

The linear equation that represent your account balance is as follows:

Your friend

y = 25(6) + 250

= 400

And,

You

400 = m(6) + 280

6m = 400 - 280

6m = 120

m = 20

Now the equation of the account balance is

y = 20x + 280

Hence, the linear equation that represent your account balance is y = 20x + 280

Answer:

B!

Step-by-step explanation:

By the way, you named this as Mathematics... This is science but, the answer is B.  

Answer:

Water carbon dioxide and oxygen.

Step-by-step explanation:

Its all in the picture. It labels the substances used in the cycle.

Answer:

On a graph, find the point of intersection of two lines; the first line has y-intercept = 5 and slope = −3, and the second line has y-intercept = 2 and slope = 1.

- sorry I answered late! but I just did the test and got a 100 :)

6

Step-by-step explanation:

Answer: x=6

Step-by-step explanation: 3(x+2)=24

(3)(x)+(3)(2)=24

3x+6=24

3x+6−6=24−6

3x=18

3x/3=18/3

x=6

Answer:

22

Step-by-step explanation:

c²= a²+b²= (5.6)²+ (7,1)²=9

P=5.6+7.1+9=21,7=22

Answer:

c and a

Step-by-step explanation:

Answer:

A for a Edge ppl out dere

Step-by-step explanation:

im right

Answer:

4.8 and 0.6

Step-by-step explanation:

Answer:

2/3?

Step-by-step explanation:

I'm not sure

Answer:

Q'(15, -3)

Step-by-step explanation:

Multiply the coordinates by the scale factor to get the new coordinates.

5 · 3 = 15

-1 · 3 = -3

Therefore, Q'(15, -3).

Answer: im livin in iowa and it sucks

Step-by-step explanation:

Answer:

Step-by-step explanation:

by inspection.. ( looking at the graph)  we can see that the slope is down hill. so it's going to be negative and also  slope = rise / run     [rise is negative in this question] soo ... i'm looking carefully to see where the line is crossing the grid marks exactly .. it looks like to me  (-3,1) and (2,-3)   you tell me if that looks right... if it does .. then the rise / run is 4/5  and this is a negative slope  sooo  

- 4/5

:)

Answer:

According to the integral root theorem the only possible real, integral zeros are +/- factors of (10*3 - 8)

... or factors of 992(+/-).  you can test by direct substitution.  No positive values are roots ... try 1, 1332, but as x increases so does y ...  so there are no positive roots.

  Roots, means y = 0 ...  so (x + 10)^3  = 8 ... take cube root ... x + 10 = 2  .. x = -8

x = -8 is a root

Testing other negatives and the y values are not zero but tend toward - infinity.

So the only real zero is x = -8

Answer:

it helps you

Step-by-step explanation:

this is for y = (x-10)^3 - 8

According to the integral root theorem the only possible real, integral zeros are +/- factors of (10*3 - 8)

... or factors of 992(+/-). you can test by direct substitution. No positive values are roots ... try 1, 1332, but as x increases so does y ... so there are no positive roots.

Roots, means y = 0 ... so (x + 10)^3 = 8 ... take cube root ... x + 10 = 2 .. x = -8

x = -8 is a root

Testing other negatives and the y values are not zero but tend toward - infinity.

So the only real zero is x = -8

Similarly for y = (x + 7)^3 +2 = 0

(x + 7)^3 = -2

x + 7 = cube root (-2)

x = -7 + cube root (-2) <<< the only real root

Answer:

B

Step-by-step explanation:

vertical line test means draw lots of vertical lines and see if they pass through two or more points

if they do, the graph is not a function

for example, x= 0 passes through two points

so it is not a function

Answer:

2

Step-by-step explanation:

all of those equal 31

Answer:

31

Step-by-step explanation:

Answer:

180°

Step-by-step explanation:

The sum of the 3 interior angles of a triangle = 180°

Answer:

The coordinates of the Midpoint of AB will be: (1/2, 5)

Step-by-step explanation:

Given the points

Finding the midpoint between (-2, 6) and (3, 4)

[tex]\mathrm{Midpoint\:of\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)[/tex]

[tex]\left(x_1,\:y_1\right)=\left(-2,\:6\right),\:\left(x_2,\:y_2\right)=\left(3,\:4\right)[/tex]

[tex]M.P=\left(\frac{3-2}{2},\:\frac{4+6}{2}\right)[/tex]

        [tex]=\left(\frac{1}{2},\:5\right)[/tex]

Therefore, the coordinates of the Midpoint of AB will be: (1/2, 5)

Answer:

A. y - 4 = 3(x + 2)

Step-by-step explanation:

Point slope form is y - y1 = m(x - x1), where m is the slope and (x1, y1) is a point on the line

Plug in the slope and given point:

y - y1 = m(x - x1)

y - 4 = 3(x + 2) is the equation

So, A is the correct answer.

Answer:

a) Math and Dance

b) 3 students (Chau, Juan, Ivan)

c) Tome, Jose, Josh, Rita

Step-by-step explanation:

That was so easy homework :-) write in comments if it helped

Answer:

What model?

Step-by-step explanation: