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Citrus2011 [14]
2 years ago
7

Evaluate the following expressions x=6

Mathematics
1 answer:
VMariaS [17]2 years ago
3 0
X=6
1. 7x=7(6)=42
2. X/3 =6/3=2
3. 29-x=29-6=23
4.36/X=36/6 =6
as I showed you for do the rest.!
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A winery has a vat with two pipes leading to it. The inlet pipe can fill the vat in 5 ​hours, while the outlet pipe can empty it
Rashid [163]

Answer:

                 time=40/3hours\approx 13.3hours

Step-by-step explanation:

The rates are additive: you can calculate the<em> inlet </em>rate and the <em>outlet</em> rate and add them algebraically, i.e. the inlet rate will be positive and the outlet rate will be negative.

<u>1. Inlet rate:</u>

1vat/5hours

<u />

<u>2. Outlet rate:</u>

1vat/8hours

<u>3. Net rate:</u>

            \text{Inlet rate - outlet rate}=1vat/5hours-1vat/8hours\\\\ \text{Net rate}=(8-5)vat/40hour=3vat/40hour=(3/40)vat/hour

<u>4. Time to fill the vat</u>

           rate=amount/time\implies time=amount/rate\\ \\ time=1vat/(3vat/40hour)

          time=40/3hours\approx 13.3hours

7 0
3 years ago
In a 5 km race, Anna swims 450 m, then runs 800 m. She then cycles the rest of the race. How many kilometres does she cycle?
Umnica [9.8K]
5km = 5000 meters
450m+800m= 1250m
5000m-1250m= 3,750m
3 3/4 km
6 0
3 years ago
‎‎‎‎‎‎‎<br> ‎<br> ‎<br> ‎‎‎<br> ‎<br> ‎<br> ‎<br> ‎<br> ‎<br> ‎<br> ‎<br> ‎<br> ‎<br> ‎<br> ‎
RUDIKE [14]

Answer:

19

Step-by-step explanation:

I put it in my calculator

3 0
3 years ago
Read 2 more answers
Someone answer right por favor
MAXImum [283]
The answer is 64!

hope this helps youu!!
7 0
2 years ago
Read 2 more answers
The current population of a threatened animal species is 1.2 million, but it is declining with a half-life of 20 years. How many
Allisa [31]
Rate:\frac{1,200,000}{20}
Unit\ Rate:\frac{60,000}{2} = 30,000

25\ Years:750,000
55\ Years:1,650,000

6 0
2 years ago
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