All categories

3 years ago

Emanuel was charged $32 for 14 2/9 km taxi ride. What was the cost per kilometer?

Mathematics

1 answer:

Anvisha [2.4K]3 years ago

6 0

Answer:

$2.25

Step-by-step explanation:

32/(14 2/9) =

32/(128/9) =

2.25 =

$2.25 sollars/km

You might be interested in

The amount and the concentration of a salt solution is given. How much salt would you get if you evaporated all water from this

DiKsa [7]

Answer:

40.5 g

Step-by-step explanation:

Find how much salt is in 450 g of a 9% salt solution.

Note that

450 g - 100%,

x g - 9%,

then

$\dfrac{450}{x}=\dfrac{100}{9},\\ \\x=\dfrac{450\cdot 9}{100}=40.5\ g.$

If you evaporated all water from this solution, then you would get 40.5 g of salt.

6 0

3 years ago

Read 2 more answers

Help me please ASAP, I will give Brainliest!!

Flura [38]

Equation: 18(20) * 7 or 18(20) x 7

4 0

3 years ago

Read 2 more answers

(1/3+9) x ( 8-3) tell me the steps help

mafiozo [28]

Use PEMDAS to solve
(Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction)

Solve parenthesis first
(1/3+9) x ( 8-3)
28/3 x 5

Use Multiplication
28/3 x 5 ≈ 4.7
After rounding 4.7 should be your answer

3 0

3 years ago

SOLVE FOR X??? <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B3%7D%20%2B2%20%3D%5Cfrac%7Bx%7D%7B4%7D%2B3" id="TexFor

natima [27]

Answer:

$\boxed{ \bold{ \boxed{ \sf{1. \: \: \: \: \: x = 12}}}}$

$\boxed{ \bold{ \boxed{ \sf{2. \: \: \: \: \: x = 3}}}}$

Step-by-step explanation:

$\sf{1. \: \: \: \: \frac{x}{3} + 2 = \frac{x}{4} + 3}$

Move x / 4 to left hand side and change its sign

Similarly, move 2 to right hand side and change it's sign

$\longrightarrow{ \sf{ \frac{x}{3} - \frac{x}{4} = 3 - 2}}$

Take the L.C.M of 3 and 4

L.C.M of 3 and 4 = 12

$\longrightarrow{ \sf{ \frac{x \times 4 - x \times 3}{12} = 3 - 2}}$

$\longrightarrow{ \sf{ \frac{4x - 3x}{12} = 3 - 2}}$

$\longrightarrow{ \sf{ \frac{x}{12} = 3 - 2}}$

Subtract 2 from 3

$\longrightarrow{ \sf{ \frac{x}{12} = 1}}$

Do cross multiplication

$\longrightarrow{ \sf{x = 1 \times 12}}$

$\longrightarrow { \sf{x = 12}}$

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

$\sf{2. \: \: \: \: 3(4 + 2x) = 33 - x }$

Distribute 3 through the parentheses

$\longrightarrow{ \sf{12 + 6x = 33 - x}}$

Move x to left hand side and change it's sign

Similarly, move 12 to right hand side and change it's sign

$\longrightarrow{ \sf{6x + x = 33 - 12}}$

Collect like terms

$\longrightarrow{ \sf{7x = 33 - 12}}$

Subtract 12 from 33

$\longrightarrow{ \sf{7x = 21}}$

Divide both sides by 7

$\longrightarrow{ \sf{ \frac{7x}{7} = \frac{21}{7} }}$

Calculate

$\longrightarrow{ \sf{x = 3}}$

Hope I helped!

Best regards! :D

4 0

3 years ago

Please help!!!!!!!!!!

Lady bird [3.3K]

Answer:

$\large\boxed{a=4\sqrt3}$

Step-by-step explanation:

We have the triangle 30° - 60° - 90°. In that triangle sides are in proportion

1 : √3 : 2 (look at the picture).

We have

$a\sqrt3=12$ multiply both sides by √3 (use √a · √a = a)

$3a=12\sqrt3$ divide both sides by 3

$a=4\sqrt3$

$b=2a\to b=2(4\sqrt3)=8\sqrt3$

7 0

3 years ago