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natali 33 [55]
4 years ago
14

My question is what is 4-5h how do you solve this problem

Mathematics
2 answers:
Murrr4er [49]4 years ago
5 0
Set the expression equal to 0.
4 - 5h = 0

Add 4 on both sides.
5h = 4

Divide by 5 on both sides.
h = \fbox {4/5}
ioda4 years ago
3 0
Let us assume that 4 - 5h = 0

we need to the value of h.

4 - 5h = 0
-5h = -4
-5h/-5 = -4/-5
h = 4/5

To check: substitute h by its value.
4 - 5h = 0
4 - 5(4/5) = 0
4 - 20/5 = 0
4 - 4 = 0
0 = 0
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Eva8 [605]

.25(4) = 1 gallon

.25(8) = 2 gallons

.25(12) = 3 gallons

.25(16) = 4 gallons

.25(20) = 5 gallons

it would take 20 minutes to remove half the water (aka 5 gallons)

6 0
3 years ago
Read 2 more answers
The chance of rain on a randomly selected day in Western Oregon between June 21st and September 21st is 30% each day. What is th
polet [3.4K]

Answer:

0.47 is the probability it rains at least 2 out of any randomly selected 5 days during the given time of year

Step-by-step explanation:

We are given the following information:

We treat training as a success.

P(Rain) = 30% = 0.30

Then the chances of rain on each day follows a binomial distribution, where

P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}

where n is the total number of observations, x is the number of success, p is the probability of success.

Now, we are given n = 5

We have to evaluate:

P(x \geq 2) =1- P(x = 0) + P(x = 1) \\=1- \binom{5}{0}(0.3)^0(1-0.3)^5 - \binom{5}{1}(0.3)^1(1-0.3)^4\\=1- 0.16807- 0.36015\\= 0.47178 \approx 0.47

0.47 is the probability it rains at least 2 out of any randomly selected 5 days during the given time of year

6 0
4 years ago
Through (2,3) slope -1
natka813 [3]

Answer:

y = -1x + 5

Step-by-step explanation:

use the eqation y - y1 = m (x - x1)

plug in ur slope as m and you x and y points

y - 3 = -1 ( x -2 )

distribute the slope --> y - 3 = -1x + 2

add three to both sides --> y = -1x + 5

5 0
3 years ago
WHAT'S THE AVERAGE CHANGE?
Morgarella [4.7K]

Answer:

1) 2

2) 4

3) 8

Step-by-step explanation:

You must apply the following formula:

\frac{f(x_2)-f(x_1)}{x_2-x_1}

Substitute value, then you obtain:

x=1 and x=2

\frac{4-2}{2-1}=2

x=2 and x=3

\frac{8-4}{3-2}=4

x=3 and x=4

\frac{16-8}{4-3}=8

5 0
3 years ago
The bar graph shows the numbers of reserved campsites at a campground for one week. What percent of the reservations were for Fr
Phoenix [80]
Based on the question, it needs a diagram. However, if there'll be an attachment, that will make this question answerable. If you have the bar graph, look at the bar that falls under Friday and Saturday. Add all the reserved campsites in a week. 

To get Friday's percentage, use this formula: Friday / Total * 100.
<span>To get Saturday's percentage, use this formula: Saturday / Total * 100.</span>
4 0
4 years ago
Read 2 more answers
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