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Diano4ka-milaya [45]
2 years ago
7

Working together, two pumps can drain a certain pool in 3 hours. If it takes the older pump 9 hours to drain the pool by itself,

how
long will it take the newer pump to drain the pool on its own?
Do not do any rounding.
Mathematics
1 answer:
omeli [17]2 years ago
4 0
Not too sure but try 18 sorry if it does not help
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Divide £72 cm in the ratio 2:3:1
PilotLPTM [1.2K]
2:3:1....added = 6

2/6(72) = 144/6 = 24
3/6(72) = 216/6 = 36
1/6(72) = 72/6 = 12

ratio is now 24:36:12
6 0
3 years ago
Last month, Justina dog ate 50 cans of dog food in 30 days. How many cans should Justin buy for the next 6 days
natali 33 [55]

Answer:

The answer is 7 2/3 cans for the next 6 days.

Step-by-step explanation:

Given: The dog ate 50 cans in 30 days.

To get how many cans per day, divide:

50/30 = 1 2/3 cans per day.

To get how many cans for 6 days, multiply:

6 * 1 2/3 = 18/3 + 5/3 = 23/3 = 7 2/3 cans or 7.667 in decimal form.

Hope this helps!! Have an Awesome day!!! :-)

7 0
3 years ago
How do you solve 3x-15=7x-10
Fofino [41]

Answer:

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form: x=-45

x

=

−

5

4

Decimal Form:x=-1.25

x

=

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1.25

Mixed Number Form:x=-14

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5 0
2 years ago
Read 2 more answers
A company surveyed 2,600 North American airline passengers and reported that approximately 75% said that they carry a smartphone
geniusboy [140]

The probability that exactly six out of ten carry a smartphone when travelling is; <u><em>P(6) = 0.146</em></u>

The missing part of the question is;

The probability distribution of x is the binomial distribution with n = 10 and p = 0.75.

Calculate P(6)

  • This is a binomial <em>probability distribution</em> problem that has a general formula as; P(x) = ⁿCₓ × pˣ × q⁽ⁿ ⁻ ˣ⁾

Where;

p is probability of success

q is probability of failure

n is number of experiments

In this question;

n = 10

p = 75% = 0.75

q = 1 - p

q = 1 - 0.75

q = 0.25

Since six passengers are randomly selected, then applying the formula earlier quoted, we have;

P(6) = ¹⁰C₆ × 0.75⁶ × 0.25⁽¹⁰ ⁻ ⁶⁾

P(6) = 0.146

Read more at; brainly.com/question/24239758

4 0
2 years ago
Which expression is in simplest form?
mixas84 [53]

Answer:

The answer is simply A. (3 cube root 8)

Step-by-step explanation:

This is the solution because the cube root of 8 makes 2. All of the other options give a decimal/unsimplified number...

Hope this helps! :)

6 0
3 years ago
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