Just put in everything as 6
Hope it helped!
Answer:
<u>44 cows and 36 ducks.</u>
Step-by-step explanation:
x is ducks and y is cows.
Assuming both have 1 head each, we can write:
x + y = 80.
Let's assume each x(cow) has 4 legs and each y(duck) has two legs.
Then we can add the numbers of legs:
2x + 4y = 248 legs
Now rearrange x + y = 80 to:
x = 80-y
and substitute:
2x + 4y = 248 legs
2(80-y) + 4y = 248 legs
160 - 2y + 4y = 248 legs
2y = 88 legs
<u>y = 44 [There are 44 cows]</u>
Use this value to find the number of ducks:
x + y = 80
44 + y = 80
<u>y = 36 [There are 36 ducks]</u>
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Check:
Do 44 cows and 36 ducks have a total of 248 legs?
4*44 + 2*36 = 248 ?
176 + 72 = 248?
<u>YES</u>
Answer:
x=9
Step-by-step explanation:
isolate the variable by dividing each side by factors that dont contain the variables.
can i get the crown?
Answer:
Step-by-step explanation:
3c + 2e = 6.10
e = c + 0.30
3c + 2(c + 0.30) = 6.10
5c + 0.60 = 6.10
5c = 5.50
c = 1.10 Є
e = c + 0.30 = 1.40 Є
You either add it or multiply it