your parents took your family out to dinner. your parents wanted to give the waiter a 15% tip. if the total amount of dinner was $42.00, what should be paid to the waiter as a tip

Answer:

A. 3^-1

Step-by-step explanation:

1/3 turned into a decimal is .33 (Repeating). Let's find which answer can repeat the same way.

A. 3^-1  = .33

B. (-1)^3  = -1

C. (-3)1  = -3

I am assuming you do not need work shown. I have used a calculator for this one.

Answer:

x=-7

Step-by-step explanation:

1. Distribute the 7 into the parenthesis: -7-2x=7x+56

2. Combine like terms by doing the opposite operation to the numbers:  -7=9x+56 (added 2x to 7x)

3. Subtract 56 to each side of the equation: -63=9x

4. To isolate the variable "x," divide each side by 9: x=-7

Answer:53km/h

Step-by-step explanation:

you divide 424 by 8 in order to find the unit rate or the amount of kilometers per hour

Answer:

Q' would be (5, 6)

Answer:

Y

Step-by-step explanation:

Answer:

x = -439

Step-by-step explanation:

Oh, ok this one will take a while for me to type ;) breath in and breath out!

Ok so watch my steps:

1. 12[tex]x[/tex] - 37

multiply #1 by 7

1. 84x - 259

now multiply #2 by 12 and line 'em up

2. 84[tex]x[/tex] + 180

1.  84x - 259 ( -

-----------------------

        x + 439 = 0

             x       = 0 -439

                   x = -439

Answer:

-1 this equation is in slope intercept for y=mx+b. the slope is variable m, which in this case is -1. the one is always invisible in front of variable

Answer: 1 /4 of a pound

Step-by-step explanation:

Since 1 pound = 4.00$, 1.00$ would equal 1/4 of a pound.

How did I solve this? I divided 4$ by 4 and got 1 then divided 1 pound by 4 and got 0.25 or 1/4

2 would not be right because you would be paying for 2 pounds which is 8 dollars, not 1.

Hope this helps! if it did could I have a Brainly? Thx! :3

Answer:

10/3

Step-by-step explanation:

Answer:

10/3

Step-by-step explanation:

5/1 x 2/3= 10/3

5 x 2 = 10

1 x 3 = 3

You cannot simplify 10/3.

Answer:

-6

Step-by-step explanation:

Answer:

$7.20

hope this helps

Answer:

t = -1

Step-by-step explanation:

15(t+2)+9t=6

15t + 30 + 9t = 6

combine like terms

24t +30 = 6

subtract 30 both sides

24t = -24

t = -1

22-5(6v-1) = -63

22- 30v + 5 = -63

27 -30v = -63

subtract both sides by 27

-30v = -90

divide it by -30

v = 3

Answer:

-1

Step-by-step explanation:

15(t+2)+9t=6

15t+30+9t=6

15t+9t=6-30

24t/24=-24/24

t=-1

Answer:

The number of cubes in the 8th stage of the pattern is 204

Step-by-step explanation:

Here, we want to calculate simply the 8th term of the pattern

T1 = 1

T2 = 1 + 4 = 1 + 2^2 = 5

T3 = T2 + 3^3 = 5 + 9 = 14

T4 = T3 + 4^2 = 14 + 16 = 30

T5 = T4 + 5^2 = 30 + 25 = 55

T6 = T5 + 6^2 = 55 + 36 = 91

T7 = T6 + 7^2 = 91 + 49 = 140

T8 = T7 + 8^2 = 140 + 64 = 204

Answer:

Im gonna have to say A.

Step-by-step explanation:

Because if you look at the pair triangles in A. The sides are not equal according to the hash marks.

Answer:

All real numbers

Step-by-step explanation:

Answer:

0=0

Step-by-step explanation:

2-v=-(v-2)

2-v=-v+2

-v+v=2-2

0=0

Answer:

x=[tex]\frac{m}{k-n}[/tex]

Step-by-step explanation:

First you subtract nx from both side getting kx-nx=m.

Then you factor out x getting x(k-n)=m

and now you divide both sides from (k-n) and you will get the answer.

Answer:

11x + 20

Step-by-step explanation:

x2 + 9x + 20

2x + 9x + 20

11x + 20

Hope this helped!

Answer:

(x + 5)(x + 4)

Step-by-step explanation:

Assuming you require the expression to be factored

Given

x² + 9x + 20

Consider the factors of the constant term (+ 20) which sum to give the coefficient of the x- term (+ 9)

The factors are + 5 and + 4, since

5 × 4 = + 20 and 5 + 4 = + 9 , thus

x² + 9x + 20 = (x + 5)(x + 4) ← in factored form

See the image above for explanation.

All done!

Solved!

:-)

When x= ([tex]10\frac{1}{3}[/tex]) the value of y is 93.

In general, the term "proportion" refers to a part, share, or amount that is compared to a total.

According to the concept of proportion, two ratios are in proportion when they are equal.

Two ratios or fractions are equal when an equation or a declaration to that effect is utilised.

A mathematical comparison of two numbers is called a proportion. According to proportion, two sets of provided numbers are said to be directly proportional to one another if they increase or decrease in the same ratio. "::" or "=" are symbols used to indicate proportions.

Given:

when x= 2/3, y=6.

Using constant proportionality

y = kx

k= y/x

k = 6 / (2/3)

k = 6 x 3/2

k = 9

Now, k= y/x

9 = y/ ([tex]10\frac{1}{3}[/tex])

9 = y / (31/ 3)

y = 9 x 31/3

y = 93

Hence, the value of y is 93.

Learn more about proportion here:

https://brainly.com/question/26974513

#SPJ5

Answer:

X=1

Step-by-step explanation:

2(X+5)=3(5-1)

2x+10=3*4

2x=12-10

2x=2

X=2÷2

X=1

i got 2.7 by dividing 12.15 by 4.5 but im not 100% sure if thats it

Answer:

Step-by-step explanation:

Given

she works $30 for 1 hour

in 40 hours she will earn 40*30= $1200

this means that a week she earns $1200

let the number of  weeks she needs to work be x

40x*(30)<=2000

1200x<=2000

x<=2000/1200

x<=1.66

the number of hours in a week is 40

40*1.66=66.66

67hours

hence she must work for at least 67hours

Answer:

(630 ÷ 7) ÷ (2 ⋅ 9) ⋅ 25 = 125

Step-by-step explanation:

630 ÷ 7 ÷ 2 ⋅ 9 ⋅ 25 = 125

(630 ÷ 7) ÷ (2 ⋅ 9) ⋅ 25 = 125

         90 ÷ 18 ⋅ 25 = 125

           5 ⋅ 25 = 125

               125 = 125

Answer:

3/10 divided by 1/3= 0.9

Step-by-step explanation:

Answer:

which class question is this

Answer:

B. √16=4

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Because negative is smaller than fractions. and ABC, is all off.

Answer: I think the answer is D/ the last answer

Step-by-step explanation: