years, find their ages.
11. Using figure 1, find the value of x.
12. Sum of two numbers is 69. If the greater number is 7 more than
the smaller number, find the numbers.
13. If the sum of two numbers is 50 and one number is 2 less than
3 times the other, find the numbers.
figure 1
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Answer:
12)one number is 31 other number is 31+7=38
13)one number is 13 other number is 3(13)-2=39-2=37
Step-by-step explanation:
12)let the smaller number be x then greater number will be x+7
sum of numbers is 69
then x+x+7=69
2x+7=69
2x=69-7
2x=62
x =62/2
x=31
other number is 31+7=38
13)let one number be x another number is 3x-2
there sum is 50
x+3x-2=50
4x-2=50
4x=52
x=52/4
x= 13
other number is 3(13)-2=39-2=37
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