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Margarita [4]
3 years ago
14

Simplify k - 1 + 1 - 4k

Mathematics
1 answer:
zhenek [66]3 years ago
4 0

Answer:

-3k

Step-by-step explanation:

k-1+1-4k

k-4k

-3k

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The worlds tallest house of
Greeley [361]

Answer:

Aprox: 26.2467 Feet Tall

Step-by-step explanation:

7 0
2 years ago
A pack of 100 wolves on a remote island are suffering from a new disease. Let W(t) be the number of sick wolves at time t. Suppo
Olin [163]

Answer:

b)\,\frac{dW}{dt}=kt\sqrt{W}, \,W(0)=10

Step-by-step explanation:

Initial number of sick wolves = W(0) = 10

At time t, no. of sick wolves = W(t)

Given that disease is spreading at a rate proportional to the product of the time elapsed and the square root of the number of sick wolves:

\frac{dW}{dt}=kt\sqrt{W}

Mathematical model of above case is:

\frac{dW}{dt}=kt\sqrt{W}, \,W(0)=10

5 0
3 years ago
Three fourths of college students use the Internet more than the library. Nine hundredths use the library more. How many times m
Leno4ka [110]
Division
4/3X 100/9 = 8 1/3
5 0
3 years ago
If x, y, and z are integers greater than 1, and (327)(510)(z) = (58)(914)(xy), then what is the value of x? (1) y is prime (2) x
Virty [35]

Answer:

1) 5

2) 5

Step-by-step explanation:

Data provided in the question:

(3²⁷)(5¹⁰)(z) = (5⁸)(9¹⁴)(x^y)

Now,

on simplifying the above equation

⇒ (3²⁷)(5¹⁰)(z) = (5⁸)((3²)¹⁴)(x^y)

or

⇒  (3²⁷)(5¹⁰)(z) = (5⁸)(3²⁸)(x^y)

or

⇒ (\frac{3^{27}}{3^{28}})(\frac{5^{10}}{5^8})z=x^y

or

⇒(\frac{5^2}{3})z=x^y

or

⇒\frac{5^2}{3}=\frac{x^y}{z}

we can say

x = 5, y = 2 and, z = 3

Now,

(1) y is prime

since, 2 is a prime number,

we can have

x = 5

2) x is prime

since 5 is also a prime number

therefore,

x = 5

8 0
3 years ago
How to solve this question
Katarina [22]
Direct variation can be written as a proportion. Therefore, we can write:

\frac{8}{4}= \frac{y}{5}
Cross multiply to get:
4y=40
Divide by 4 on both sides to get that y=10.

:)

3 0
3 years ago
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