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2 years ago

Find the value of x.

Mathematics

1 answer:

dolphi86 [110]2 years ago

4 0

Answer: 10

Step-by-step explanation:

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Suppose y varies directly with x, and y = 12 when x = 2. What direct variation

neonofarm [45]

Answer:

$y=24$

Step-by-step explanation:

Given:

$y=kx$

Substitute:

$\left \{ {{y=12} \atop {x=2}} \right.$ into $y=kx$

$12=k\times2$

Swap the sides:

$k\times2=12$

Divide both sides of the equation by the coefficient of variable:

$k=\frac{12}{2}$

Cross out the common factor:

$k=6$

Find the equation of the function:

$y=6x$

Substitute:

$y=6\times4$

Calculate the product or quotient:

$y=24$

4 0

2 years ago

Sean has $75 to spend on CDs. If each CD costs $6.98, about how many CDs can he buy?

Daniel [21]

75/6.98=10.744
We would most likely round this down to 10 even though the .7 because if we round up we would go over the budget.
So he can buy about 10 CDs

7 0

3 years ago

Read 2 more answers

In the formula C = 2tr, C stands for

maks197457 [2]

Answer:

circumference of a circle

Step-by-step explanation:

Actually, the formula is C = 2πr. C stands for "circumference."

3 0

2 years ago

Geometry pls help !!! Find the value of AB. AB = [?]

V125BC [204]

Answer:

AB = 16 Units

Step-by-step explanation:

In the given figure, CD is the diameter and AB is the chord of the circle.

Since, diameter of the circle bisects the chord at right angle.

Therefore, AE = 1/2 AB

Or AB = 2AE...(1)

Let the center of the circle be given by O. Join OA.

OA = OD = 10 (Radii of same circle)

Triangle OAE is right triangle.

Now, by Pythagoras theorem:

$OA^2 = AE^2 + OE^2 \\10^2 = AE^2 + 6^2 \\100= AE^2 + 36\\100-36 = AE^2 \\64= AE^2 \\AE = \sqrt{64}\\AE = 8 \\\because AB = 2AE..[From \: equation\: (1)] \\\therefore AB = 2\times 8\\\huge \purple {\boxed {AB = 16 \: Units}}$

4 0

3 years ago

Will Mark Brainlest helppp plss

Dima020 [189]

Answer:

the required value of c is [ -11 -1

2 5]

3 0

2 years ago