The expression y = 7 + 2x can be substituted into the first equation to find the variable "x"
<h3>System of equation</h3>
System of equation are made of two or more equations with unknowns
Given the system of equation
4x=5-2y
y-2x=7
From equation 2:
y = 7 + 2x
The expression y = 7 + 2x can be substituted into the first equation to find the variable "x"
Learn more on system of equation here: brainly.com/question/14323743
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Answer:
205.62
Step-by-step explanation:
Answer:
2250 trees
Step-by-step explanation:
Find how many eucalyptus trees are planted in an hour.
4 hours = 1000
1 hour = 1000 ÷ 4 = 250
20 pupils = 250
1 pupil = 250 ÷ 20 = 12.5 (in an hour)
30 pupils = 12.5 x 30 = 375 trees (in an hour)
6 hours = 375 x 6 = 2250 trees
the answer is in the photo:)