what is the equation of a line that is perpendicular to 8x+6y=-5 the answer is b
4x+2x=84
3x+5y=126
5x+4y=?
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cerco la x nella prima equazione:
4x+2y=84
x=(84-2y)/4
x=(42-y)/2
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cerco la y nella seconda equazione, sostituendo la x:
3x+5y=126
3[(42-y)/2]+5y=126
y= -18
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cerco la x della nella equazione, sostituendo la y:
4x+2y=84
4x+2(-18)=84
x=30
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cerco i totale nella terza equazione, sostituendo i valori della x e della y:
5x+4y= ?
5*30 + 4*(-18)= 150-72 = 78
Answer:
7/10
Step-by-step explanation:
We have liters of gas, and we need to figure out how many cans we can fill.
Hint #22 / 4
We need to divide the 7 liters by the 10 liters that each can holds.
Answer:
48
Step-by-step explanation:
the number of shirts are 3, number of pants 4, number of socks pairs 2 and 2 pairs of shoes.
first lets start with shirts and pants, number of unique combinations are,
(for each shirt there are 4 different pant combinations) = 
=12
similiarly for each shirt pant pair there are 2 shoes and 2 socks pairs.
thus, total number of combinations are=
= 48
Answer:
10
Step-by-step explanation:
13+-8-(-5)+10
