A complete load of concrete = 8 parts gravel + 7 parts water + 5 parts cement.
Total number of parts in every load = 8 + 7 + 5 = 20 parts
If total load = 220 kg, then 20 parts = 220 kg
Divide each side by 20 : 1 part = 11 kg
gravel = 8 parts = 8 x 11 kg = <em>88 kg</em>
water = 7 parts = 7 x 11 kg = <em>77 kg</em>
cement = 5 parts = 5 x 11 kg = <em>55 kg</em>
<u>Check:</u> 88 + 77 + 55 = 220 yay !
Answer:

Step-by-step explanation:


Answer:
11 m/s; 2 m/sec²
Step-by-step explanation:
v(t) = s'(t) = 2t +3
v(4) = 2·4 +3 = 11 . . . m/s
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a(t) = v'(t) = 2 . . . . m/s²
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Velocity and acceleration are 11 m/s and 2 m/s².
Answer:4/7
Step-by-step explanation:
7 stays there
2 x 2 is 4 so far it’s 7/4, then you flip it to become 4/7. Answered by a 5th grader.
Answer:
14,500*0.8= 11,600
14,500-11,600= 2,900 it decreased in the first year
Step-by-step explanation: