9514 1404 393
Answer:
Step-by-step explanation:
When x represents the number, "the sum of 3 and a number" is (x+3). Twice that sum is 2(x+3). "Is 30" means this expression is equal to 30:
2(x +3) = 30 . . . . an equation for the given conditions
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We can solve this equation by dividing by 2:
x + 3 = 15
x = 12 . . . . . . subtract 3
The number is 12.
Do you have a diagram? But assuming x=5 is a side then you need another side and an angle in between the two sides
Answer:
b
Step-by-step explanation:
parabola's aren't functions
Answer:
(-9,1.5)
Step-by-step explanation:
(-6*1.5, 1*1.5)
Answer:
9 × 5= 45 .Frankie has 9 nickles.
Step-by-step explanation:
Because 5 divided by 45 equals to 9.
