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nevsk [136]
3 years ago
7

2y/5-y/4=-3 what is the common denominator

Mathematics
1 answer:
babymother [125]3 years ago
3 0

Answer:

20

Step-by-step explanation:

You might be interested in
What's 32.88 divided by 0.6​
otez555 [7]
It’s 54.8 I’m pretty sure
(I hope this helps!)
8 0
3 years ago
Read 2 more answers
Squareroot(y-1) + 3 = y
jek_recluse [69]
Note:xy means x times y and x(y) means the same thing

so
first we get rid of square root then
make the equation equal to zero becaues if
xy=0 then x or/and y=0



squareroot(y-1)+3=y

isolate the squareroot
subtrac 3 from boht sides

squareroot(y-1)=y-3

square both sides (since they are equal, you should be able to square both sides and still make it true)

(squareroot(y-1))^2=(y-3)^2
(y-1)=(y-3)(y-3)
y-1=y^2-6y+9
subtrac y from both sides
-1=y^2-7y+9
add 1 to both sides
0=y^2-7y+10
find what two number multiply to make 10 and add to get -7
the answer is -2 and -5

0=(y-5)(y-2)
therfore
y-5=0
and/or
y-2=0

therefor
y=5 or/and 2 might work
let's try out 2
square root(2-1)+3=2
square root(1)+3=2
1+3=2
false
so 2 doesn't work



let's try 5
squareroot(5-1)+3=5
squareroot(4)+3=5
2+3=5
5=5
true

y=5
7 0
3 years ago
Please help with calculations!
ASHA 777 [7]

Resumen de primeros 4 años en Medicina (bioquimica, geneticas, salud publica, ética, etc)

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6 0
4 years ago
49 is 35% of what number?
NNADVOKAT [17]
We write this like this:

49=35%x

and we want to find the x.

let's invert the sides:

35%x=49.


35 is equal to 0.35

0.35*x=49

and now we only divide both sides by 0.35:

x=140

so the answer is 140.

(aternatively we can do it through fractions:

35/100*x=49
divide both sides by 7:

5/100*x=7

simplify the first fraction
1/20*x=7

and multiply by 20:

x=140
4 0
3 years ago
Ava volunteers at an animal shelter with 6 cats. She has 15 cat treats. She gives each cat the same number of treats, and she gi
Delvig [45]

Answer:

Ava gives each cat __2__ treats. __3___ treats are left.

Step-by-step explanation:

8 0
3 years ago
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