Answer:
4
Step-by-step explanation:
If x= mass of 1 load of sticks and y= mass of 1 load of bricks and a load of bricks is twice as heavy as a load of sticks y = 2x then,
4x + 4y = 771 ; 4x + 4(2x) = 771 ; 12x = 771 ; x= 64.25 kg
To find y: y = 2x = 2*64.25 = 128.5 kg
Total weight of 1 load of bricks and 3 loads of sticks: y + 3x
128.5 + 3*64.25 = 321.25 kg
Answer:
f=36
Step-by-step explanation:
5f/6=30
5f=30(6)
5f=180
f=180/5
f=36
Answer:
45 miles per hour
Step-by-step explanation:
The second bit of information is completely irrelevant. To calculate speed, you have to use the equation distance divided by time. If the distance of the trip is 90 miles and it took two hours, 90/2 = 45.
Answer:
yes they are.. the second one is just bigger a bit
Step-by-step explanation: