3. Bob the plumber charges $15 per hour plus a service fee of $40 for coming out to your
house. How much would plumber Bob charge for working 5 hours?
A) $125
B) $100
C) $75
D) $115

Answer:

the answer would be A because the x's are 1's

Answer:

x=3, y= - 2

Step-by-step explanation:

4x + 3y = 6

x-3y= 9

x=9+3y

4.(9+3y)+3y=6

36+12y+3y=6

15y = - 30

y = - 2

=> x= 9+3y

x= 9+ 3.(- 2)

x= 3

Answer:

.7 into a percentage is 70 percent

and 43.2 as a decimal is .432

(a) 0.7 as a percentage is 70%.

(b) 43.2% as a decimal is 0.432.

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

0.7 and 43.2%.

To write decimal as a percentage:

Multiply by 100,

So,

0.7 x 100 = 70%

To write percentage as a decimal:

Divide by 100,

So,

43.2/100 = 0.432.

Therefore, the values are 70% and 0.432.

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Answer:

300

Step-by-step explanation:

180÷3=60

60x5=300

Answer: 300 words in 5 minutes

Step-by-step explanation:

divide 180 by 3 (equals 60)

multiply 60 by 5 to get your answer (300)

Answer:

-5/2÷5/7

change to multiplication

-5/2×7/5

reduce the numbers of the greatest common factor of 5

-1/2×7

calculate the product

-1/2×7

the answer is -7/2

if I'm wrong sorry I used a math app to find the answer

Answer:

4/5

Step-by-step explanation:

Just divide both parts of the fraction by 7

28/7=4

35/7=5

Answer:

4/5

Step-by-step explanation:

Divide both the numerator and denominate by 7

28/7=4

35/7=5

Answer for 7: C

Answer for 9: A

Step-by-step explanation for 7:

Because the variable is an exponent, we know there are no real numbers which cannot be placed in the exponent. Therefore, the domain is all real numbers.

Step-by-step explanation for 9:

Test a few values for x. Notice as the x value gets higher, the y value gets exponentially higher. Notice as the x value gets lower, the y value approaches 0, but no value of x will have y equal to or less than 0. Therefor, the asymptote, or line that cannot be crossed is 0 - making A the correct solution.

Answer:

144°

Step-by-step explanation:

m<1 =3x

m< 2= 12x

1&2 are supplementary angles, so

3x+12x= 180

15x=180

x= 12°

measure of angle 4 equals the measure of angle 2

because they're head opposite angles

m<4= 144°

Answer:

$10.50

Step-by-step explanation:

15 times 30 = 4.5

15-4.5=10.50

Answer:

slope = - 1

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 8,6) and (x₂, y₂ ) = (0, - 2) ← 2 points on the line

m = [tex]\frac{-2-6}{0+8}[/tex] = [tex]\frac{-8}{8}[/tex] = - 1

Answer:

a = -0.57

rounded to the nearest tenth: a = -0.6

Step-by-step explanation:

(25 - a) ÷ 7 = 3

25 - a ÷ 7 = 3

25 ÷ 7 - a = 3

3.6 - a = 3

3.57 - 3.57 - a = 3 - 3.57

a = -0.57

The value of "a" in the equation (25 - a) ÷ 7 = 3 is 4.

To find the value of "a" in the equation (25 - a) ÷ 7 = 3.

we can solve for "a" by isolating it on one side of the equation.

(25 - a)/7 = 3.

Multiply both sides of the equation by 7 to get rid of the division:

7(25 - a)/7 = 3 × 7.

25 - a = 21.

To isolate "a," subtract 25 from both sides of the equation:

25 - a - 25 = 21 - 25.

Simplifying further, we get:

-a = -4.

Multiply both sides of the equation by -1 to solve for "a":

-1 × (-a) = -1× (-4).

a = 4.

Therefore, the value of "a" in the equation (25 - a) ÷ 7 = 3 is 4.

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Answer:

Step-by-step explanation:

(h + 4) - (h-1) = h + 4 + h*(-1) - 1*(-1)

                    = h + 4 - h + 1

                   = h - h + 4 + 1

                    = 0h + 5

Answer:

no, h=7

Step-by-step explanation:

9+9h = 10h+2

9=h+2

7=h

Answer:

Y=-1

Step-by-step explanation:

The slope of line is zero

Answer:

2.25π square inches

Step-by-step explanation:

Area = π[tex]r^{2}[/tex]

Diameter = 2r

So in this case, radius = 1.5 inches

Plugging that into the area formula produces the answer

Answer:

D. 22x^2-18x-15

Step-by-step explanation:

12x²-19x+4 + 10x²+x-19

22x²-18x-15

Answer:

Step-by-step explanation:

Use the second kinematic formula

[tex]x_f-x_i=V_it+\frac{1}{2}at^2\\20=8t+\frac{1}{2}(9.8)t^2\\4.9t^2+8t-20=0[/tex]

Apply the quadratic formula to solve for time. The negative value does not matter because time cannot be negative, its impossible.

I got a value of t = 1.363 seconds

Answer:

angle: 71

x = -3

Step-by-step explanation:

step 1: 180-(55+54) = 71

step 2: x+74=71 (subtract 74 from both sides)

step 3: x=-3

step 4: -3+74=71

Answer:

The correct answer should be 3÷8

Answer:

3÷8

Step-by-step explanation:

Answer:

557,510

Step-by-step explanation:

haha big brain(jk calculater)

Answer:

557,510

Step-by-step explanation:

caculator

Answer:

$8.08

Step-by-step explanation:

First subtract 9.50 from 35.75 to get

24.25

Then divide 24.25 by 3 to get

Approx $8.08

218 is the answer i think

Answer:

y=1/2x+7

Step-by-step explanation:

y-5=1/2(x-(-4))

y-5=1/2x+2

y=1/2x+7

Answer:

We conclude that:

f(g(3)) = 2

Hence, option B is correct.

Step-by-step explanation:

Given the f(x) table

x         2          3            4          5

f(x)      0           1             2         3

Given the g(x) table

x         1           2           3            4

g(x)      1           2            4           8

We need to determine f(g(3)).

In order to determine f(g(3)), first, we need to determine g(3)

It is clear from the table of g(x),

at x = 3, g(3) = 4

so

f(g(3)) = f(4)

Now, we need to check the value of f(4) at x = 4 using the table f(x)

It is clear from the table of f(x),

at x = 4, f(4) = 2

Thus,

f(g(3)) = f(4) = 2

Therefore, we conclude that:

f(g(3)) = 2

Hence, option B is correct.

Answer: $276.25

Step-by-step explanation:

250 times .07 = 17.5

17.5 times 1.5 = 26.25

250 + 26.25 = 276.25

Answer:45%

Step-by-step explanation:

Answer:

I'm so sorry I don't know how to do this

Step-by-step explanation:

Answer:

i dont see a number line, attach a pic pls

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

y_2 - y_1 / x_2 - x _1

4 - 2 / 3 - (-1) = 2/4 = 1/2

y +4 = 1/2 (x + 3) distributive property

y + 4 = 1/2x + 1.5

y= 1/2x - 5/2 subtraction (you subtract 4 from both sides) (-5/2 = -2.5)

therefore your equation is y = 1/2x - 5/2

hope this helps :)