John left a 20% tip on a $40.00 dinner bill how much was the tip​

Answer:

7

Step-by-step explanation:

а>12-6

Answer: x= -23/2

Step-by-step explanation:

multiply both sides of the equation by 6

x-5=3(x+6)

distribute 3

x-5=3x+18

move variables to lest-hand side and change sign

x-3x=18+5

like terms

-2x=23

the divide both sides by -2

x= -23/2

Answer:

5.71

Step-by-step explanation:

x = 20/3.5 = 5.71

Answer:

The answer would be 30 minutes

Step-by-step explanation:

Find how many ties 12 can go into 10. (Divide 12 divided by 10=1.2)

Multiply 25 times 1.2 (30)

Your answer would be 30 minutes

Hope I helped!! :)

Sorry if it's wrong! :(

Pls mark brainliest!!!

Answer:

yes

Step-by-step explanation:

it has 4 sides and thoes shapes heve sharp sides like a square

Answer:

1225

Step-by-step explanation:

divide by 4 because a square has 4 sides

Answer:

144

Step-by-step explanation:

-0- Easy :D

Answer:

c...........................

Answer:

Selling the total for $ 1276, Ace lost $ 1.37 for each meter.

Step-by-step explanation:

Given that Ace earned $ 176 selling 32 meters of cloth at $ 1496, to find out his loss for each meter if he sold the total for $ 1276, the following calculation must be performed:

1496 - 176 = 1320 (stock price)

1320/32 = 41.25 (price per meter)

1276/32 = 39.87

41.25 - 39.87 = 1.37

Thus, selling the total for $ 1276, Ace lost $ 1.37 for each meter.

Answer:

6/5

Step-by-step explanation:

Answer:

The reciprocal of 5/6 would be 6/5

Answer:

B

Step-by-step explanation:

8/5=1.6

Answer:

b

Step-by-step explanation:

8/5=1.6

Answer:

$7

Step-by-step explanation:

7 x 1

Answer: 3

Step-by-step explanation: Divide 9 by 3

Answer:

Step-by-step explanation:

A.)

[tex]a^{2} + b^{2} = c^{2}[/tex]

[tex]16^{2} +20^{2}= c^{2}[/tex]

256 + 400 = [tex]c^{2}[/tex]

656 = [tex]c^{2}[/tex]

25.6 = c

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B.)

[tex]a^{2} + b^{2} = c^{2}[/tex]

[tex]25^{2}+ 10^{2} = c^{2}[/tex]

625 + 100 = [tex]c^{2}[/tex]

725 = [tex]c^{2}[/tex]

26.9 = c

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C.)

[tex]a^{2} + b^{2} = c^{2}[/tex]

[tex]12^{2} +10^{2}= c^{2}[/tex]

144 + 100 = [tex]c^{2}[/tex]

244 = [tex]c^{2}[/tex]

15.6 = c

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D.)

[tex]a^{2} + b^{2} = c^{2}[/tex]

[tex]26^{2}+ 24^{2} =c^{2}[/tex]

676 + 576 =  [tex]c^{2}[/tex]

1,252 =  [tex]c^{2}[/tex]

35.4

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Sry it takes a lot of time to put in these equations and all that

Hope it helped!

Answer:

im horrible at this kinda stuff-but is it 18......? ive always been bad-so if im wrong-dont get mad-

Step-by-step explanation:

happy new year!

The answer is C hope it helps

Answer:

D

Step-by-step explanation:

checked it over as well

Answer:

B.) 81x2 + 234x + 169

Step-by-step explanation:

Answer:

For [tex]x \in\mathbb{C}[/tex]

[tex]x = -2i[/tex]

[tex]x = 2i[/tex]

[tex]x = 7[/tex]

Step-by-step explanation:

[tex]f(x)=x^3-7x^2+4x-28[/tex]

For [tex]f(x) = 0[/tex]

[tex]x^3-7x^2+4x-28 = 0[/tex]

We can easily factor the expression [tex]x^3-7x^2+4x-28[/tex] by grouping.

[tex]x^3-7x^2+4x-28 = (x^3-7x^2)+(4x-28) = x^2(x-7)+4(x-7) = \boxed{(x^2+4)(x-7) }[/tex]

Now we have

[tex](x^2+4)(x-7) = 0[/tex]

Therefore,

[tex]x^2+4 = 0 \text{ or } x-7 = 0[/tex]

So,

[tex]x^2 = -4 \implies x = \pm\sqrt{-4}[/tex]

Once [tex]\sqrt{-1} = i[/tex]

[tex]x = \pm\sqrt{-4} = \pm\sqrt{4}\sqrt{-1} = \pm 2i[/tex]

Answer:

4.326 x 10^ 3

Step-by-step explanation:

Correct me if wrong please :)

Answer:

$2750/month

Step-by-step explanation:

Answer:

Multiplication

Step-by-step explanation:

I think what you're talking about is not a decimal, but a multiplication point:

[tex] \frac{1}{2} \: . \: \frac{3}{4} [/tex]

This dot can donate multiplication when in the middle of two numbers and/or fractions.

But if you're talking about some other point, then I don't know, sorry. :(

Answer:

multiplication

Step-by-step explanation:

I think what your talking about is not decimal but a multiplication

Answer:

(x-2)²/100 + (y+3)²/64 = 1

Step-by-step explanation:

C (2,-3): h=2 k=-3

semimajor axis (CV): a=12-2=10

center-foci: c=8-2=6

semi minor axis: b² = a²-c²= 100 - 36 = 64

equation: (x-h)²/a² + (y-k)²/b² = 1

(x-2)²/100 + (y+3)²/64 = 1

Answer:

1245.89

Step-by-step explanation:

fthgxdtyujbcxfdrtyuhjnb bcfdtyhjnbcxdftgyhjn cftyghjn vcfghjnbvfghj

Answer:

it will be a continuous model

Step-by-step explanation:

weekend weekend assume every amount of area infected by the bed period doubles as hour passes

Answer:

[tex]y = 16\frac{2}{3} x + 100[/tex] or [tex]y = \frac{50}{3} + 100[/tex]

Step-by-step explanation:

The equation of a line is [tex]y = mx + b[/tex], with [tex]m[/tex] being the slope and [tex]b[/tex] being the y-intercept.

We can see on the graph that the y-intercept, where the line crosses or touches the y-axis, is 100. So, our new equation is [tex]y = mx + 100[/tex].

Now we have to find the slope. Let's pick a point that's clearly on the graph. Perhaps (3, 150). And then we'll take the y-intercept point for convenience, (0, 100).

Then, we'll use [tex]\frac{y_{2} - y_{1}}{x_{2} - x_{1} }[/tex] to find the slope.

Let's substitute in our points.

[tex]\frac{150-100}{3-0}[/tex]

Simplify.

[tex]\frac{50}{3}[/tex]

Now, we can leave the slope like that or turn it into a mixed number. As a mixed number, your slope is [tex]16\frac{2}{3}[/tex].

We'll put that in our equation for a line and...bam!

[tex]y = 16\frac{2}{3} x + 100[/tex] or [tex]y = \frac{50}{3} + 100[/tex]