D=deana's age
b=bernice's age
sum is 48
b+d=48
8 years from now, dena will be 3 times bernice age
d+8=3(b+8)
ok we gots
d+b=48
d+8=3(b+8)
d+b=48
minus b from both sides
d=48-b
subsitute 48-b into the other equation for d
d+8=3(b+8)
48-b+8=3(b+8)
56-b=3b+24
add b to both sides
56=4b+24
minus 24 both sides
32=4b
divide both sides by 4
8=b
bernice is 8 years old
Step-By-Step Explanation:
1. 20.95 x 1 = 20.95
2. 119.5 x 2 = 239
3. 8.75 x 5 = 77.5
4. 24.25 x 7 = 169.75
5. 52.3 x 3 = 156.9
6. 0.4
7. 0.4
8. 0.4
9. 0.7
10. 0.5
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