Answer:
21/40mm squared
Step-by-step explanation:
to find area you have to multiply length * width
7/8 * 3/5 = 21/40
Decimal form: 0.525
Answer:
the answer is A
Step-by-step explanation:
9 (insert x= -3, y=2)
9()
9 ()
9(9)( )
81()
20 or 20.25
Answer:
k= -0.2
Step-by-step explanation:
3+2(5k-3)=7 (original)
3+10k-6=7 (distribute 2 in (5k-3))
9+10k=7 (combine like terms 3+-6)
10k=-2 (subtract 9 on both sides to isolate k)
k=-0.2 (divide 10 on both sides to get you're answer/isolate k)
Answer:
Gain of 300rs
Step-by-step explanation:
Sohan bougth a second-hand refrigerator for 2500rs
500rs was spent on it repairs
= 2500+500
= 3,000rs
It was sold for 3,300rs
Therefore the gain can be calculated as follows
= 3,300-3,000
= 300rs
Hence the gain is 300rs
So if you distribute 4 in the first parentheses, you get 12x+20y+8z.
Then you distribute 3 in the second parentheses. You'll get 3x-3z. That all equals 12x+20y+8z+3x-3z.
Now you have to start combining numbers with the same variable. Start with x. 12x+3x is 15x.
y has no other common variable, it's left alone.
8z-3z is 5z
All together now with the numbers in simpler form, the equation is 15x+20y+5z
Jenna's would be the right answer because when you distribute 5 in her answer you get 15x+20y+5z