Mathematics
10.08.2020 19:18
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Each red stick is 4 cm longer than each blue stick. five red sticks and two blue
Each red stick is 4 cm longer than each blue stick. five red sticks and two blue sticks together measure exactly 100 cm. how long is the blue stick?
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smarty5187
4,4(18 marks)
X= red stick
y= blue stick
Set up a system of equations:
y+4=x
5x+2y=100
Substitute in:
5(y+4)+2y=100
5y+20+2y=100
7y=80
y=80/7=11 3/7 cm
The blue stick is 11 3/7 cm
Hope this helped!
y= blue stick
Set up a system of equations:
y+4=x
5x+2y=100
Substitute in:
5(y+4)+2y=100
5y+20+2y=100
7y=80
y=80/7=11 3/7 cm
The blue stick is 11 3/7 cm
Hope this helped!
mercedesamatap21hx0
4,5(97 marks)
20%
Step-by-step explanation:
Two bags contain marbles, while Bag A contains 112 marbles, bag B contains 140 marbles.
Number of marbles in bag A = 112
Number of marbles in bag B = 140
Differences in the marbles
= 140-112= 28
Percent fewer marbles in Bag A than Bag B will be:
Difference in marbles in the bags divided by the marbles in bag B multiplied by 100.
= 28/140 × 100
= 1/5 × 100
= 20%
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