A mechanic charges a $30 flat rate plus $20 per hour. If he wants to earn at least $350 this week, how many hours will he need to work?​

Answer: 6

Step-by-step explanation:

Parentheses- (-2+4)= (2)

Multiply 3(2)= 6

Answer:

1) 28 - 16 = 12

2) 4x + 6 -7y -5z

3) -3x -8y - 4 - 87z

These were all mostly simplified already.

Hope this helps!

Answer:

20/6 or 10/3 or 3 1/3

Step-by-step explanation:

Answer:

10/3 = 3 1/3

Step-by-step explanation:

If 5/6 is one fourth (1/4) of a number,

multiply 5/6 by 4 to find the number:

5/6 x 4 = 10/3 = 3 1/3

Answer:

12. 5

11.

10

10

15. 7

14. 11

2

=

16

16

18. 3

+

11

17

3

4

co

loo

8

Step-by-step explanation:

12. 5

11.

10

10

15. 7

14. 11

Answer:

Solution:

(0.2)x = 2.

Taking log on both sides

log (0.2)x = log 2.

x log (0.2) = 0.3010, [since log 2 = 0.3010].

x log (2/10) = 0.3010.

x [log 2 - log 10] = 0.3010.

x [log 2 - 1] = 0.3010,[since log 10=1].

x [0.3010 -1] = 0.3010, [since log 2 = 0.3010].

x[-0.699] = 0.3010.

x = 0.3010/-0.699.

x = -0.4306….

x = -0.4 (nearest tenth)

Answer is option (c) -0.4

The value of x to the nearest tenth is -0.4

Given the following expressions

(0.2)x = 2 and log 2 = 0.3010

Taking log of both sides of (0.2)x = 2

log (0.2)x = log 2.

x log (0.2) = 0.3010,

x [log 2 - log 10] = 0.3010.

Note that log2 2 = 1

x [log 2 - 1] = 0.3010

x [0.3010 -1] = 0.3010, [since log 2 = 0.3010].

x[-0.699] = 0.3010.

x = 0.3010/-0.699.

x = -0.4306

Hence the value of x to the nearest tenth is -0.4

Learn more on logarithm here: https://brainly.com/question/25710806

Answer is option (c) -0.4

Answer:

$28.35

Step-by-step explanation:

The headphones are $80.99 and are 35% off. To find the amount he will save, change the 35% to a decimal by moving it two times to the left, which is 0.35. Multiply 80.99 and 0.35 to get 28.3465. Round to get $28.35.

Answer:

3

Step-by-step explanation:

8 1/2 = 17/2 - 14/2 = 3/2

Answer:31.6

Step-by-step explanation: i did the test

Answer:

diameter: 3.31 mm

Explanation:

circumference of circle → πd

using the formula:

10.4 = πd

d = 10.4/π

d = 3.31 mm

Answer:

diameter = 3.31 mm (3 sf)

Step-by-step explanation:

Given:

⇒ [tex]\pi[/tex]d = 10.4

⇒ d = 10.4 ÷ [tex]\pi[/tex] = 3.31 mm (3 sf)

Check the picture below.

Make sure your calculator is in Degree mode.

Answer:

$98

Step-by-step explanation:

Hope this helps

Answer:

17.50

Step-by-step explanation:

8 times 4 = 32

32=$14

32/14= 40/x

x= 17.50

Answer:

x = -4

Step-by-step explanation:

3x=-12

Using the division property of equality, we can divide both sides by 3 to isolate x...

x=-12/3

x = -4

Answer:

x = 12, y = 4

Step-by-step explanation:

x / y = 3

x - y = 8

Or

12 / 4 = 3

12 - 3 = 8

Answer:

3(x+2y+1)

3x+6x+3

Step-by-step explanation:

he can paint ( 4 / 7 ) * 91 paintings in 4 weeks

4 / 7 = 0.57142857142

0.57142857142 * 91 = 52 paintings in 4 weeks

Answer:

the answer is y³/-2ab :)

Answer:

8x=10

Step-by-step explanation:

hope helps

Answer:

Step-by-step explanation:

The rate of change is:

Take 2 points

Rate of change=Slope:-

[tex]\\ \rm\hookrightarrow m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\\ \rm\hookrightarrow m=\dfrac{120-30}{40-10}[/tex]

[tex]\\ \rm\hookrightarrow m=\dfrac{90}{30}[/tex]

[tex]\\ \rm\hookrightarrow m=3ft/s[/tex]

Answer:

p=60

Step-by-step explanation:

it is divisible by

1

60

20

3

4

15

2

30

12

5

6

10

Answer:

5:10 P.M

Step-by-step explanation:

3:45 P.M + 0hrs 40 min = 4:25 P.M

4:25 P.M + 0hrs 45 min = 5:10 P.M

The chili was ready at 5:10 P.M.

Answer:

9/2

Step-by-step explanation:

Direct variation is

y = kx where k is the constant of variation

Substitute into the equation to find k

y=3 and x=2

3 = k*2

Solve for k

3/2 = k

y = 3/2 x

We know x =3

y = 3/2 * 3

y = 9/2

Answer:

A

Step-by-step explanation:

given y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 3 when x = 2 , then

3 = 2x ( divide both sides by 2 )

[tex]\frac{3}{2}[/tex] = k

y = [tex]\frac{3}{2}[/tex] x ← equation of variation

When x = 3 , then

y = [tex]\frac{3}{2}[/tex] × 3 = [tex]\frac{9}{2}[/tex] → A

Answer:

to find the median, divide the odd number by 2 and round it up

for even numbers, only divide by 2.

Average the numbers with the number in the next highest position.

You have a median.

In this case, the median is 30.

The median of the numbers 30, 37, and 8 is 30.

To find the median of a set of numbers, you first need to arrange the numbers in either ascending or descending order and then determine the middle value.

Given the numbers: 30, 37, 8

Arrange the numbers in ascending order:

8, 30, 37

Determine the middle value:

Since there are three numbers, the middle value is the second number, which is 30.

To know more about median here

https://brainly.com/question/300591

#SPJ3

Answer:

−9x 2 -44-4x

Step-by-step explanation:

1 Simplifica  -5{x}^{2}-43-1−5x

2

−43−1  a  -5{x}^{2}-44−5x

2

−44.

-5{x}^{2}-44-4{x}^{2}-4x

−5x

2

−44−4x

2

−4x

2 Colecciona los términos semejantes.

(-5{x}^{2}-4{x}^{2})-44-4x

(−5x

2

−4x

2

)−44−4x

3 Simplifica.

-9{x}^{2}-44-4x

−9x

2

−44−4x

listo  espero te halla ayudado

Check the picture below.

The quantity of dosages of medication that can be obtained from the container is 1.5 dosages.

Given the following data:

To calculate the quantity of these dosages of medication that can be obtained from the container:

In this exercise, you're required to determine the amount of dosages of medication can be obtained from the container. Thus, we would divide the given mass of container by the mass of medication as follows:

[tex]Quantity = \frac{\frac{3}{8}}{\frac{1}{4}}[/tex]

Simplifying further, we have:

[tex]Quantity = \frac{3}{8} \times 4\\\\Quantity = \frac{12}{8} \\\\Quantity = \frac{3}{2}[/tex]

Quantity = 1.5 dosages.

Read more on word problems here: brainly.com/question/13170908