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2 years ago

Can somebody please tell me if this is correct or not

Mathematics

2 answers:

valentinak56 [21]2 years ago

3 0

Answer:

I would have done it the same way. Believing it is correct.

Step-by-step explanation:

andreev551 [17]2 years ago

3 0

Answer: Looks precise

Step-by-step explanation:

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Delia, Edwin and Freya share some money in the ratio 5 : 7 : 8. Freya’s share is £1600. How much money did they share?

FrozenT [24]

Answer:

To find how much money they shared first find the total parts

Which is

5 + 7 + 8 = 20

Deila's share is

5 /20 × £1600

= 1/4 × £1600 = £ 400

Edwin's share is

7/ 20 ×£1600 = £560

Freya's share is

8/20 × £1600

= 2/5 × £1600 = £640

Hope this helps you

3 0

2 years ago

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Graph the equation on the coordinate plane.<br> y=1/2x

azamat

Here is how the graph would look!
Hope this helps :)

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2 years ago

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180 is 25% of what number? show ur work

horsena [70]

Since 25% is 1/4, then 180 times 4 is 720.
720 is your answer.

6 0

2 years ago

21) What is the slope of the perpendicular lines?<br> y = 5x

Pachacha [2.7K]

The slope of the perpendicular line of y=5x would be -1/5, since slopes are always opposite reciprocals when they are perpendicular to each other.

8 0

2 years ago

The point P(5, −4) lies on the curve y = 4/(4 − x).

dalvyx [7]

Answer:

Step-by-step explanation:

Slope refers to the steepness of the line.

Slope is equal to change in value of y divided by change in value of x.

The slope of the secant line is given by $\frac{f(x)-f(a)}{x-a}$ .

Given points are $P\left ( 5,-4 \right )\,,\,Q\left ( x,\frac{4}{4-x} \right )$

So, slope of the secant line is $\frac{\frac{4}{4-x}+4}{x-5}=\frac{4+4(4-x)}{(x-5)(4-x)}=\frac{20-4x}{(x-5)(4-x)}=\frac{-4(x-5)}{(x-5)(4-x)}=\frac{-4}{4-x}=\frac{4}{x-4}$

(i) At x = 4.9,

$\frac{4}{4.9-4}=\frac{4}{0.9}=4.444444$

(ii) At x = 4.99,

$\frac{4}{4.99-4}=\frac{4}{0.99}=4.040404$

(iii) At x = 4.999,

$\frac{4}{4.999-4}=\frac{4}{0.999}=4.004004$

(iv) At x = 4.9999,

$\frac{4}{4.9999-4}=\frac{4}{0.9999}=4.0004$

(v) At x =5.1,

$\frac{4}{5.1-4}=\frac{4}{1.1}=3.636364$

(vi)

At x = 5.01,

$\frac{4}{5.01-4}=\frac{4}{1.01}=3.960396$

(vii) At x = 5.001,

$\frac{4}{5.001-4}=\frac{4}{1.001}=3.996004$

(viii) At x = 5.0001,

$\frac{4}{5.0001-4}=\frac{4}{1.0001}=3.9996$

(b)

Slope of the tangent line is 4.

5 0

3 years ago

Can somebody please tell me if this is correct or not​

Can somebody please tell me if this is correct or not