2 years ago

How do i do question B? Please answer it step by step so i can understand

Mathematics

2 answers:

Arte-miy333 [17]2 years ago

7 0

let X be the volume of lemonade

Step-by-step explanation:

now,

X\8000 =1/5

X=1600ml

Viefleur [7K]2 years ago

3 0

The same would be the right one

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I need help asap please

rjkz [21]

Answer:

$x = -\frac{3}{2}$ or $x = 1$

Step-by-step explanation:

Using the zero product property, first step is to set the given equation, $2x^2 + x - 1 = 2$ , to zero. Then factorise the left side.

Thus,

$2x^2 + x - 1 = 2$

Subtract 2 from both sides

$2x^2 + x - 1 - 2 = 2 - 2$

$2x^2 + x - 3 = 0$

Factorise the left side

$2x^2 + 3x - 2x - 3 = 0$

$x(2x + 3) - 1(2x + 3) = 0$

$(x - 1)(2x + 3) = 0$

Find the solution

$x - 1 = 0$

$2x + 3 = 0$

$x = 1$

$2x + 3 = 0$

$2x = -3$

$x = -\frac{3}{2}$

The answer is: $x = 1$ or $x = -\frac{3}{2}$

3 0

3 years ago

Let f(x)=3x2 +4 and let g (x)= x+2<br> find (f+g) (x).

Lelechka [254]

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5 0

3 years ago

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Explain to me this thing because I don't know and I have a test on Friday help me please please

scoundrel [369]

You write the equation .75/1=x/100

5 0

2 years ago

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1. How many terms does the expression 5 + 9x · 7 + 2xº<br> have? What are they?

mel-nik [20]

This expression has four terms.

5, 9x, 7, and 2x

A term is a constant number, a variable, or a variable with a coefficient.

6 0

2 years ago

A metal bar weighs 9.25 ounces. 65% of the bar is gold. how many ounces of gold is in the bar?

Elza [17]

Not sure I'm right but:

If the bar weighs 9.25 ounces and 65% of the bar is gold, you'd do 65% of 9.25. So the answer would be <span>65% of 9.25= 6.0125</span>

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3 years ago