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just olya [345]
3 years ago
15

It takes 1.5 hours for john to mow the lawn. linda can mow the same lawn in 2 hours. how long will it take john and linda, worki

ng together, to mow the lawn?
Mathematics
1 answer:
levacccp [35]3 years ago
5 0
You find the average which is 1.5 + 2 divided by 2 
or you can convert them to minutes
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Each side of a square is increasing at a rate of 5 cm/s. At what rate is the area of the square increasing when the area of the
icang [17]

Answer:

<h2>70cm/s</h2>

Step-by-step explanation:

Area of a square with side of length L is expressed as A = L². The rate at which the area is increasing will be expressed as dA/dt.

dA/dt = dA/dL * dL/dt where

dL/dt is the rate at which each side of the square is increasing.

Since dA/dL = 2L, dA/dt = 2L dL/dt

Given dL/dt = 5cm/s and the Area of the square = 49 cm²

49 = L²

L = √49

L = 7cm

dA/dt = 2(7) * 5

dA/dt = 14*5

dA/dt = 70cm/s

The rate at which the area of the square is increasing is 70cm/s

3 0
3 years ago
If side b is 12 and side c is 31. Round your answer to the nearest hundredth.
Marrrta [24]

Answer:

i think you mean area so 31?

Step-by-step explanation:

i need more stuff to answer that

6 0
4 years ago
There are n employees on The Game Shop's sales team. Last month, they sold a total of 504 games. One of the sales team members,
murzikaleks [220]
The expression you would need to know how many games Chris sold is: 

(504 divided by n) -17

4 0
3 years ago
The side lengths of a triangle are 5. 3, and 4. Is this a right triangle?
Phantasy [73]
No djdnskdnskdndkfnfj
5 0
3 years ago
Read 2 more answers
Find the ratio a:b, if 2a−b/6 = b/3
evablogger [386]

If 2a−b/6 = b/3, then ratio a:b = 3 : 2

<h3><u>Solution:</u></h3>

Given that 2a−b/6 = b/3

We have to find the ratio of a:b

In mathematics, a ratio indicates how many times one number contains another

A ratio between two or more quantities is a way of measuring their sizes compared to each other

let us first solve the given expression

\frac{2a -b}{6} = \frac{b}{3}

On cross multiplication we get,

6a - 3b = 6b

6a = 6b + 3b

6a = 9b

a = \frac{9b}{6}\\\\\frac{a}{b} = \frac{3}{2}

To convert a fraction to a ratio, first write down the numerator, or top number. Second, write a colon. Thirdly, write down the denominator, or bottom number

Therefore ratio a:b = 3 : 2

6 0
3 years ago
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