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lana [24]
3 years ago
6

It is stated that a quantity varies directly as another if the two quantities always change in the same ratio. So, what would ha

ppen to the quantity y if the quantity x doubles in value?
Mathematics
1 answer:
lys-0071 [83]3 years ago
5 0

Answer:

2k

Step-by-step explanation:

Let k  is the ratio between two variables or y = kx

when x double, means: y = k (2x) = 2kx  quantity y will change with a ratio 2k

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The area of a rhombus is 90 square inches. If the longer diagonal measures 18 inches, what is the length of the shorter diagonal
lorasvet [3.4K]
10 Inches

A = p q / 2

p = diagonal 1
q = diagonal 2

2A / q = p

Solve for p
180/18 = 10
5 0
3 years ago
Using the work shown on the left, What is the cubed root of 4/ the square root of 2 in simplest radical form
krek1111 [17]

Answer:

⁶√2

Step-by-step explanation:

∛4 = (2^2)^1/3 = 2^2/3

So ∛4 / √2

= 2^2/3 / 2^1/2

= 2^1/6

= ⁶√2

5 0
3 years ago
Of the water lilies in the pond, 43% are yellow. The others are white. A frog randomly jumps onto a lily. What is the complement
stealth61 [152]
Dont know the firat question but the propability is 43 out of 100 percent
8 0
3 years ago
Initially 100 milligrams of a radioactive substance was present. After 6 hours the mass had decreased by 2%. If the rate of deca
LenaWriter [7]

The amount of radioactive material remaining after 24 hours is 92.15 kg.

<h3>Exponential function</h3>

An exponential function is in the form:

y = abˣ

where y, x are variables, a is the initial value of y and b is the multiplier.

Let y represent the amount of the substance after t hours.

From the equation, a = 100 mg

Also, after 6 hours:

100-100*2\%=100b^6\\\\98=100b^6\\\\b=0.9966

After 24 hours:

y = 100(0.9966)²⁴ = 92.15 kg

The amount of radioactive material remaining after 24 hours is 92.15 kg.

Find out more on Exponential function at: brainly.com/question/12940982

4 0
3 years ago
Jan has 10 reports to file. If each report takes an average of 75 minutes. to file, how long will it take to file 70% of them?
lora16 [44]

10 × 75 = 750 minutes to file 100% of the files. (Approximately 12.5 hours)

\frac{70}{100} = 0.7

70% of these files = 750 × 0.7 = 525 minutes.

Converting 525 minutes into hours, Jan would to take 8.75 hours to file 70% of the files.


6 0
3 years ago
Read 2 more answers
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