Answer:
I think that it is 6
Step-by-step explanation:
you should probably wait for someone else to answer to be sure thought
<span>3x − 4y = 7
4y = 3x - 7
y = 3/4 x - 7/4 slope = 3/4
</span><span>parallel lines, slope is the same so slope = 3/4
</span><span>passes through the point (−4, −2)
</span>equation
y + 2 = 3/4 (x + 4)
4y + 8 = 3x + 12
3x - 4y = -4
answer
<span>3x − 4y = −4</span>
The question is incomplete, the complete question is;
If in 0.5 min the tank gets 0.8 gallons of the water then
how many gallons will be in 1 min ?
how many gallons will be in 3 min?
and how long it takes for 40 gallons?
Answer:
1.6 gallons
4.8 gallons
25 mins
Step-by-step explanation:
This question has to do with proportion.
If it takes 0.5 mins for the tank to get 0.8 gallons
in 1 minute the tank will get 0.8 * 1/0.5 = 1.6 gallons
In 3 minutes the tank will get 3 * 1.6 gallons = 4.8 gallons
if it takes 1 min to get 1.6 gallons
it will take x mins to get 40 gallons
x = 1 * 40/1.6 = 25 mins
Answer:
20%
Step-by-step explanation:
Answer:
There are 36 boys in the class.
Step-by-step explanation:
This question is solved by a system of equations.
I am going to say that:
x is the number of boys
y is the number of girls.
There are 42 pupils in a class.
This means that .
Since we want x, we have that
12 of them are Malays while the rest are Chinese. 1/4 of the boys and 1/2 of the girls are Malay.
This means that:
Since
Multiplying everything by 4.
There are 36 boys in the class.