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3 years ago

Helppppppppppppp meeeee pleaseeeeeee

Mathematics

1 answer:

Arte-miy333 [17]3 years ago

3 0

Answer:

I'm pretty sure it's the first and last one

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86= 10x + 26, what is x?

pashok25 [27]

Answer:

$60 = 10x \\ x = 6$

6 0

3 years ago

Read 2 more answers

2. A man buys eggs at 55kobo a score . he finds that 10% of the eggs are unsellable but sells the rest at 60kobo a dozen .find i

liubo4ka [24]

Answer:

Percentage Profit is 63.63%

Step-by-step explanation:

The man buys 440 eggs at 55 pence a score

i.e. he buys 20 eggs for 55 pence

He buys 1 egg for 55/20 = 2.75 pence

Therefore, he buys 440 eggs for = 440 × 2.75 = 1210 pence

10% eggs are unsaleable

thus he sold = 440 - 440 × 10/100 = 440 - 44 = 396 eggs

Eggs sold in dozen = 396/12 = 33

He sold 1 dozen for = 60 pence

Thus, he sold 33 dozen for = 33 × 60 = 1980 pence

Profit = 1980 - 1210 = 770 pence

% Profit = (770/1210) × 100 = 63.63%

(hope this helps can i plz have brainlist :D hehe)

3 0

3 years ago

F(x)=√x+11. Find the inverse of f(x).

MaRussiya [10]

Answer:

f(x)⁻¹ = (x - 11)²

Step-by-step explanation:

To find the inverse of the function, you need to (1) swap the places of the "x" and "y" variables and then (2) solve for "y". Remember, f(x) is another way of writing "y".

y = √x + 11 <----- Original equation

x = √y + 11 <----- Swap variables

x - 11 = √y <----- Subtract 11 from both sides

(x - 11)² = (√y)² <----- Square both sides

(x - 11)² = y <----- Simplify

Another way of writing the output of an inverse function is with f(x)⁻¹.

5 0

2 years ago

Please help this hurts

Svetllana [295]

Answer:

6x - 11y = -13 is the answer.

Step-by-step explanation:

Let's plug in the points to see what sticks.

Start with (-4, -1)

1) 11x - 6y = 11(-4) - 6(-1) = -44 + 6 = -38 $\neq$ 13

2) 6x - 11y = 6(-4) - 11(-1) = -24 + 11 = -13

3) 6x - 7y = 6(-4) - 7(-1) = -24 + 7 = -17 $\neq$ 17

4) 6x - 11y = 6(-4) - 11(-1) = -24 + 11 = -13 $\neq$ 13

The only one that fits is #2. Let's try the other point to be sure.

2) 6x - 11y = 6(1.5) - 11(2) = 9 - 22 = -13

3 0

3 years ago

600% of what number is 5,580

tiny-mole [99]

Answer:

930

Step-by-step explanation:

600% of x = 5580

6x = 5580

x = 5580/6

x = 930

7 0

2 years ago