Answer:
D. $1.95
F. $3
Step-by-step explanation:
dimes: x + 2
quarters: x
x + 2 + x = 12
2x + 2 = 12
2x = 10
x = 5
dimes: x + 2 = 5 + 2 = 7
quarters: x = 5
Total value: (7 * .10) + (5 * .25) = $1.95
_____
dimes: x
quarters: 2x
x + 2x = 15
3x = 15
x = 5
dimes: x = 5
quarters: 2x = 2(5) = 10
Total value: (5 * .10) + (10 * .25) = $3
Answer:
i believe it is 1,241.2
Step-by-step explanation:
well you use long division.
Answer:
7.4
Step-by-step explanation:
- find the area of rectangular sign8times6.5)=52,take if 1l=14m^2 what about 52 then multiply by 2
That is 100 choices for the first number
99 for the 2nd number
98 for the 3rd number
in total, there are 100*99*98 or 970200 possible combos of winning numbers
Answer:
det(A)=-det(B)
Step-by-step explanation:
We have two matrices A, and B.
Matrix B is obtained by swapping rows 1 and 3 of matrix A.
Whenever we swap rows in matrices, the determinants does not change but the sign changes.
Therefore
det(A)=-det(B)
Also no two rows of of both matrices are the same, therefore
det(A)≠0, and det(B)≠0
