Answer:
Step-by-step explanation:
7x + 3 = 9x - 19
-2x + 3 = -19
-2x = -22
x = 11
DE= 7(11) + 3 = 77 + 3 = 80
EF = 9(11) - 19 = 99 - 19 = 80
80 + 80 = 160 for DF
Answer:
click the add attachments file and upload
Step-by-step explanation:
Answer:
1.C 2.J 3.D 4.A
Step-by-step explanation:
1.(18×100)/200
2.(85×320)/100
The number of years it will take for the world’s population to increase to 8,252,000,000 people is 16
<h3>How to determine the number of years?</h3>
This implies that we calculate the value of x
The equation is given as:
8252=(6080)(1.02)^x
Divide both sides by 6080
1.36 = (1.02)^x
Take the logarithm of both sides
log(1.36) = x * log(1.02)
Divide both sides log(1.02)
x = log(1.36)/log(1.02)
Evaluate the quotient
x = 16
Hence, the number of years is 16
Read more about exponential functions at:
brainly.com/question/2456547
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Answer: x=-20
Step-by-step explanation:
Isolate the variable(x) by dividing each side by factors (50) that do not contain the variable.
