Answer:
7, 9, 11
Step-by-step explanation:
question: Find three consecutive odd integers such that the difference of twice the second and the first is 11.
make the 3 consecutive odd intergers x, y, and z.
numbers are consective (come right after another) AND odd, meaning you would add 2 every time. therefore:
x+2=y
y+2=z
given that: "difference of twice the second and the first is 11."
difference means subtraction
second number is the variable y
first number is the variable x
2y-x=11
----------------
3 equations:
2y-x=11
x+2=y
y+2=z
----------solve by substitution
x+2=y
x =y-2 into 2y-x=11
2y-(y-2)=11
2y-y+2=11
y=9
second number is 9
-----
numbers are 7, 9, 11
0.6 and 60/100 the first was decimal form while the latter was as a hundredths fraction<span />
Answer:
Step-by-step explanation:
The rules is to mutiply pls try your best to do your work rate me 5 thank u hope it help u
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Total marks she'll need to score for an average of 70: 70×5= 350
Score she needs for the 5th test: 350-60-90-90-70=40
She needs to score 40 marks.