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Debora [2.8K]
3 years ago
12

What is the common denominator between 1/4 and 3/5?

Mathematics
2 answers:
nignag [31]3 years ago
5 0
20 is the common denominator as four and five both go in to it
BaLLatris [955]3 years ago
3 0
20 
u get this by doing 4 times 5 and then doing 5 times 4 because they both equal the same number 
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Eric can mow the Johnson’s lawn in 2 hours. It takes him 5 hours to mow the Smith’s lawn. If he is paid $9 per hour , how much w
sveta [45]
(2 x 9) + (5 x 9)

= 7 x 9

= 63

$63 is the answer.

Hope it helped! :-D


4 0
3 years ago
Enter the ratio as a fraction in lowest terms<br><br> 30 minutes to 27 minutes
vampirchik [111]

Step-by-step explanation:

ratio will be

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7 0
3 years ago
Read 2 more answers
Given (x)=-x²+2x,determine<br> F'(x) using first principle
mote1985 [20]
Hello,
which principle?

f(x)=-x²+2x
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You mean maybe this

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\lim_{h \to 0} \frac{f(x+h)-f(x) } {h}=\lim_{h \to 0}\frac{-2hx-h^2+2h}{h}=\lim_{h \to 0}\frac{-2x-h+2}{1}=-2x+2

6 0
3 years ago
Helpppppp pleaseeeeeeee
natima [27]

Answer:

125

Step-by-step explanation:

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Angle 2 is equal to Angle 6

Therefore 180 - Angle 6 = Angle 7

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7 0
3 years ago
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Slope=4,passing through (7,4)
barxatty [35]

Answer:

if ur trying finding the y-intercept  it's -24

Step-by-step explanation:

slope- intercept form is y=mx+b we know m is 4 (7,4) 7 is the x 4 is the y ...

then you plug them in and we know 4 times 7 is 28 and then 4-s8 is -24  

7 0
3 years ago
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