There are infinitely prime numbers "p", but p+2 and p+4 are not primes.
Example: Suppose p = 7 (prime) if you add 2, it becomes 9 (Not a Prime).
Same thing if p = 11(prime), if yo add 4, it becomes 15 (Not a prime number)
The short answer is to solve one equation for one variable, then swap that variable in a different equation.
Example:
2x + 2y = 6
y-x = 1
Step 1: solve either equation for a variable: (#2) y = x+1
Step 2: substitute for your solved variable (I can substitute x+1 for y)
(#1) 2x + 2(x+1) = 6
2x + 2x + 2 = 6
4x + 2 = 6
4x = 4
x = 1
now use x=1 to solve for y in either original equation
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First, apply this following rule:
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×
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Second, apply this following rule:
×
Third, multiply 1 × 6 to get 6 and 6 × 2 to get 12.
Fourth, find the GCF of 6 and 12.
Factors of 6: 1, 2, 3, 6
Factors of 12: 1, 2, 3, 4, 6, 12
The GCF is 6.
Fifth, divide the numerator by the GCF.
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Sixth, divide the denominator by the GCF.
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Seventh, collect the new numerator and new denominator.
Answer as fraction:
Answer as decimal: 0.5
Answer:
68.67
Step-by-step explanation:
Estimate 63% of 109
Change 63% to a decimal by locating the decimal which is after the 3 in 63 and move the two places to the left. So 63% as a decimal is .63
Now multiply .63 × 109
= 68.67
D, the answer is the same but in the parenthesis is reversed using the addiction something property