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Allushta [10]
3 years ago
12

Mark dug a 20 foot hole in 4 hours. Which rational number shows the average depth Mark dug each hour?

Mathematics
2 answers:
Anarel [89]3 years ago
6 0

Answer:

5:1

The ratio would be 20:4 (foot to hours) and when simplified, it would be 5:1

Oksana_A [137]3 years ago
4 0

Answer:

Mark dug 5 ft for every hour

Step-by-step explanation:

20 ft in 4 h

20ft = 4h

20ft/4 = 4h/4

5ft = h

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Look at the picture
gladu [14]

Answer:

C)

Step-by-step explanation:

- π can be added to π to get a rational number

π + (-π) = 0

0 is a rational number

6 0
3 years ago
If F(x) = log 5 2x, find F^-1(x). a. 5^y=2x b. 5^2y=x c. y = (5^x)/2
gregori [183]

Answer:

y = \frac{5^{x} }{2}

Step-by-step explanation:

y = log 5 2x

inverse ------> y=x

x = log 5 2y

5^{x} = 2y

y = \frac{5^{x} }{2}

4 0
4 years ago
Find the domain of ( (a+b/b) − (a/a+b))÷( (a+b/a) − (b/a+b) )
Alexandra [31]

Answer:

Hence the domain is given as,b is such that b is a member of all real numbers,except b=0,a=0, a=-b

Step-by-step explanation:

The domain refers to values for which the expression is defined.

This implies that, the denominators are not equal to zero.

(\frac{a + b}{b} -  \frac{a}{a + b}) \div ( \frac{a + b}{a} -  \frac{b}{a + b})

(\frac{(a + b)(a + b)-ab}{b(a + b)})\div(\frac{(a + b)(a + b)-ab}{a(a + b)})

\frac{(a + b)(a + b)-ab}{b(a + b)} \times\frac{a(a + b)}{(a + b)(a + b)-ab}

\implies \frac{a}{b}

Hence the domain is given as,b is such that b is a member of all real numbers,except b=0,a=0, and a=-b

7 0
3 years ago
Read 2 more answers
i just missed a couple says of school and i need someone to explain how to do this to me: please help
algol [13]
Remember the formula y = mx+b.

'm' in mx is the slope.

'b' is the y-intercept.

So in the equation y = -3x - 3...

The slope is -3. The y-intercept is -3.

I hope you find this answer the most helpful! :)
3 0
3 years ago
How many times will 1/5 go into 37
Marat540 [252]
1/5 goes into 37 185 times:

37 / (1/5) = 37*(5/1)=185
3 0
4 years ago
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