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igomit [66]
3 years ago
15

4 workers require 5.5 m of mortar for 3 days when working 8 hours a day.

Mathematics
1 answer:
charle [14.2K]3 years ago
3 0
Sorry I'm not sure how to solve this one but maybe you have to multiply
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Given a≠±b and a^2−b^2 / a+b =12, find a−b.
Olegator [25]

Answer:

a-b=12

Step-by-step explanation:

(a²-b²)/(a+b) = 12

(a-b)(a+b)/(a+b)=12

a-b=12

3 0
3 years ago
Can u solve this for me??
dangina [55]

Answer:

19 lawns

Step-by-step explanation:

well 64.99 is about $65

so you would need to mow atleast 19 lawns (this does not included tax XD)

3 0
3 years ago
one rectangle has a length 10 cm and width 5 cm the second rectangle has length 12 cm and width 4 cm are the two rectangles simi
tatuchka [14]

Answer:

No, they aren't similar.

Step-by-step explanation:

<u><em>Let's take the proportionality of their sides to check whether they are similar or not:</em></u>

\frac{10}{5} = \frac{12}{4}

=> 2 ≠ 3

So, they are not similar.

8 0
3 years ago
What is the solution to -2(5y-5)-3y
Alenkasestr [34]

10-13y

hope this helps

7 0
3 years ago
Read 2 more answers
Joan waters her plants each day with gallons of water. With a new irrigation system in place, she uses gallons of water each day
vampirchik [111]

Answer:

172\frac{1}{2} gallons

Step-by-step explanation:

Considering she waters her plants with 25 1/2 gallons  i.e 51/2

and with the new system, she does it with 19 3/4 i.e 79/4

taking the difference:

\frac{51}{2} - \frac{70}{4} = \frac{23}{4} gallons per day

For 30 days:

30 x \frac{23}{4} = 172.5 or 172\frac{1}{2} gallons

8 0
3 years ago
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