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Anvisha [2.4K]
3 years ago
7

Z varies directly with q. when z=2,q=1 . find a formula connecting z and q z=???

Mathematics
2 answers:
Lostsunrise [7]3 years ago
8 0

Answer:

z  =  \frac{q}{2}

Step-by-step explanation:

z \infty q

z = kq

z = 2 \: and \: q = 1

2 = k1

k =  \frac{2}{1}

z =  \frac{1}{2} q

z =  \frac{q}{2}

attashe74 [19]3 years ago
5 0

9514 1404 393

Answer:

  z = 2q

Step-by-step explanation:

The formula for direct variation is ...

  z = kq . . . . . k is the constant of proportionality

We can find k using the given values of z and q:

  k = z/q = 2/1 = 2

Then the equation connecting z and q is ...

  z = 2q

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How do I divide fractions with a whole number
spin [16.1K]

Answer:

To Divide a Fraction by a Whole Number:

Multiply the bottom number of the fraction by the whole number. Step 2. Simplify the fraction (if needed)

Step-by-step explanation:

3 0
3 years ago
A supplier delivers an order for 20 electric toothbrushes to a store. By accident, three of the electric toothbrushes are defect
Vladimir79 [104]

The probability that the first two electric toothbrushes sold are defective is 0.016.

The probability of an event, say E occurring is:

P(E)=\frac{n(E)}{N}

Here,

n (E) = favorable outcomes

N = total number of outcomes

Let X = the number of defective electric toothbrushes sold.

The number of electric toothbrushes that were delivered to a store is n = 20.

The number of defective electric toothbrushes is x = 3.

The number of ways to select two toothbrushes to sell from the 20 toothbrushes is:

(\left {{20} \atop {2}} \right. )=\frac{20!}{2!(20-2)!} =\frac{20!}{2!18!} =\frac{20*19*18!}{2!*18!} = 190

The number of ways to select two defective toothbrushes to sell from the 3 defective toothbrushes is:

(\left {{3} \atop {2}} \right. )=\frac{3!}{2!(3-2)!} =\frac{3!}{2!1!} =\frac{3*2!}{1!2!} =3

Compute the probability that the first two electric toothbrushes sold are defective as follows:

P (Selling 2 defective toothbrushes) = Favorable outcomes ÷ Total no. of outcomes

\frac{3}{190}\\ =0.01579\\=0.016

Thus, the probability that the first two electric toothbrushes sold are defective is 0.016.

Learn more about probability here brainly.com/question/27474070

#SPJ4

4 0
1 year ago
A diver is a horizontal distance of 50 feet from a boat and 120 feet beneath the surface of the water. What distance will the di
amid [387]

Answer:

The answer is 130 feet

Step-by-step explanation:

Using Pythagoras' Theorem:

120² + 50² = diagonal²

diagonal² = 16900ft

diagonal = √16900

= 130ft

(Correct me if i am wrong)

4 0
2 years ago
Pls help answer this question!
Amanda [17]

Answer:

C

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Kelly shows all the ways to make 49 as tens and ones. What ways does she show?
ahrayia [7]
There are a bunch of ways to do it but a couple would be 4 tens and 9 ones, or 49 ones. I hope this was helpful.
5 0
3 years ago
Read 2 more answers
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