One way to compute a 15% tip for a bill is to multiply the bill by 0.15. A restaurant bill was $42.40. Calculate the tip. Enter your answer as a number only. (b) Explain how you calculated the tip in the section above. Be detailed in your response.

Answer:

22.5

Step-by-step explanation:

SINCE Y VARIES DIRECTLY WITH X, WE USE THE FORMULA

y=kx; k representing the variable change, y= 7.5, x=5

> y=kx

>7.5= k(5) > 7.5= 5k

>k= 7.5/5    (divide to get the k)

k= 1.5

NOW REPLACE THE NEW VALUES OF X AND K AS THE VARIABLE CHANGE, TO FIND THE VALUE OF Y

>y=kx       ; k=1.5 and x=15    y=?

>y= (1.5)(15)

>y=22.5

the value of y is 22.5 when x is 15

Answer:

Test Score vs Student Height

Step-by-step explanation:

Answer:

The answer is B

Step-by-step explanation:

Answer:

1) 6 (9x - 5)

2) 4 (1 + 6)

Step-by-step explanation:

1.

54x - 30

The greatest common factor is 6, hence take out 6

6 (9x - 5)

2.

4 + 24

The greatest common factor is 4, take out 4

4 (1 + 6)

*I am not simplifying this because as per what is given, I am unsure if one of these numbers is actually a coefficient.

Answer:

[tex]\frac{5}{16}[/tex]

Answer:

49

Step-by-step explanation:

cos(x)=31/47

x=cos^-1 (31/47)

Step-by-step explanation:

use the law of cosine for right triangles cos(θ)= adjacent/ hypotenuse

cos(θ)=31/47=.659

θ=inverse cosine of .659

θ=48.73

Answer:

B

Step-by-step explanation:

Given 2 sides of a triangle then the third side x is

difference of 2 sides < x < sum of 2 sides , that is

17 - 10 < x < 17 + 10

7 < x < 27

In terms of AC , then

7 < AC < 27 → B

Answer:

all u need to know is that a side of a triangle is always smaller ( not smaller or equall) than the sum of two other sides of the triangle which in this case means AC is smaller than 27 and the only choice that is meantioning this is B so yea thats it (u cab always eleminate options if u dont know eveythibg about question but u just know some of them are wrong for some reason)

Answer:

D $68

Step-by-step explanation:

Answer:

Yes, it's D, $68.

Step-by-step explanation:

Answer:

The area of the figure is 97 square inches

Step-by-step explanation:

In the given figure

To find the area of the figure we can find the area of the big rectangle with dimensions 7 inches and 19 inches and subtract from it the area of the small rectangle with dimensions 4 inches and 9 inches

∵ The area o the rectangle = length × width

∵ The dimensions of the big rectangle are 7 inches and 19 inches

∴ The width = 7 inches

∴ The length = 19 inches

→ Substitute them in the rule of the area above

∵ The area of the big rectangle = 19 × 7

∴ The area of the big rectangle = 133 inches²

∵ The dimensions of the small rectangle are 4 inches and 9 inches

∴ The width = 4 inches

∴ The length = 9 inches

→ Substitute them in the rule of the area above

∵ The area of the small rectangle = 9 × 4

∴ The area of the small rectangle = 36 inches²

→ Subtract the area of the small rectangle from the area of the big

   rectangle to get the area of the green figure

∵ The area of the figure = the big area - the small area

∴ The area of the figure = 133 - 36

∴ The area of the figure = 97 inches²

∴ The area of the figure is 97 square inches

Answer:

140 miles

Step-by-step explanation:

1 times 20 (1 inch=20 miles)

2 times 20 (2 inches=40 miles)

3 times 20 (3 inches=60 miles)

4 times 20 (4 inches=80 miles)

5 times 20 (5 inches=100 miles)

6 times 20 (6 inches=120 miles)

7 times 20 (7 inches=140 miles)

Hope this helped!! :)

Brainliest?!?!

Stay safe and have a wonderful day/afternoon/night!!!

Answer:

$985

Step-by-step explanation:

$5400 x .025 = $135

$135 + $850 = $985

Answer:

180 yards.

Step-by-step explanation:

80% of 225 = 180.

Answer:

Max mowed 180 Yards

Step-by-step explanation:

80 percent of 225 is 180

Answer:

80/8=10

Step-by-step explanation:

Answer:

617,580.56

Step-by-step explanation:

I'm going to assume that there will be only 1 payment made at the end of the loan and the interest is compounding  anually.

Using the compound interest formula we have

185000(1+.041)^30

Compute this and get

617580.56

Answer:

w0hat kinda math is this

Step-by-step explanation:

Answer:

42123

Step-by-step explanation:

i think

Answer:

it will take 20 hours for 18 bakers to complete the same order

Step-by-step explanation:

15 bakers  take 24 hours

18 bakers take x hours

15 * 24 = 360 "baking hours"

18 * x = 18x " baking hours"

360 baking hours = 18x baking hours

360 = 18x

 18      18

20 = x

x = 20 hours

Answer:

76

Step-by-step explanation:

A full triangle is 180 *always remember

180-153=27

so r is 27

180-77-27=76

or you could do

77+27+x=180

104+x=180

x=180-104

x=76

Answer:

Step-by-step explanation:

here you go mate'

step 1

11 = y-6  equation

step 2

11+6=y-6+6  add 6 to the sides

answer

y=17

can i get brainliest if you dont mind?

Answer:

Choice D. 17

Step-by-step explanation:

For this we have to add 6 to both sides since we have to do the inverse (opposite) of what it says. So since it's - 6 we do + 6. Then we will get y = 17. Also when you add a negative and a positive they will no matter what number they are they will always cancel each other out, or in other words the become 0.

11 = y - 6

+6      +6

 17 = y

Answer:

[tex]\frac{dy}{dx}[/tex] = 8(2x + 3)³

Step-by-step explanation:

Differentiate using the chain rule

Given

y = f(g(x)) , then

[tex]\frac{dy}{dx}[/tex] = f'(g(x)) × g'(x)

Here

f(x) = [tex](2x+3)^{4}[/tex] ⇒ f'(x) = 4(2x + 3)³

g(x) = 2x + 3 ⇒ g'(x) = 2

Thus

[tex]\frac{dy}{dx}[/tex] = 4(2x + 3)³ × 2

    = 8(2x + 3)³

Answer:

for a, 4a=6 in

a=6/4

a=3/2

a=1.5 in

for b, 4b=8 in

b=8/4

b=2 in

for c, 4c=10 in

c=10/4

c=5/2

c=2.5 in

Answer:

Length of the bush after 2 months = 60 cm

Step-by-step explanation:

When the bush was planted in the garden, height of the bush = 20 cm

200% as tall as initial length = 2 times of the initial length

300% as tall as initial length = 3 times of the initial length

Therefore, after 2 months, length of the bush = 20 × 3

                                                                            = 60 cm

After 2 months, length of the bush is 60 cm.

Answer: The function of company A.

Step-by-step explanation:

For a linear equation:

y = a*x + b

the rate of change is "a", the coefficient that is multiplicating the variable.

Now, for company A we know that:

There is a fixed fee of $50, and $150 for each day.

So if you rent the car for x days, the total cost will be:

y = $150*x + $50

Then for this company, the rate of change is $150.

For company B we have the function:

y = $50*(2x + 1)

Where again, x is the number of days that you rent the car.

We can rewrite this as:

y = $50*2*x + $50*1

y = $100*X + $50

In this case, the rate of change is $100

Then the company with a great rate of change is the function for company A.

Answer:

Step-by-step explanation:

The point-slope form of the equation is y - y₀ = m(x - x₀), where (x₀, y₀) is any point the line passes through and m is the slope:

m = -⁵/₂

(-4, -2)    ⇒   x₀ = -4,  y₀ = -2

The point-slope form of the equation:

y + 2 = -⁵/₂(x + 4)

So:

y + 2 = -⁵/₂x - 10         {subtract 2 from both sides}

y = -⁵/₂x - 12             ←  the slope-intercept form of the equation

Answer:

11miles

Step-by-step explanation:

1mile≈1,61km

so 17/1,61=10,56≈11miles

Answer:

10.56 (rounded)

(whole number is 10.5633)

Step-by-step explanation:

1 kilometer = 0.62 miles (rounded)

Multiply it by 17

=10.56 (rounded)

(whole number is 10.5633)

Answer:

I don't believe they are similar. AA would be if the angles are equal or proportional. There would be lines indicating the sides to be equal, so not SSS theorem. For SAS, there's no equal sides or angles. So my best bet would be not similar

9514 1404 393

Answer:

  54

Step-by-step explanation:

Let d represent the number of donuts. The cost is proportional to the number, so we have ...

  d/33.00 = 9/5.50

  d = 33.00(9/5.5) = 9·6 = 54

You can buy 54 donuts for $33.00.

Answer:

can be proven

Step-by-step explanation:

because the lines inside the triangle line up and if you put one triangle on top of the other they would line up

Answer:

can be proven

Step-by-step explanation: