Consider the following pattern: 1
a)
1
1
+
100 x 101 101 x 102
t...t
1
1
+
148 x 149 149 x 150
300
1
b)
2
2.
2.
2
+
+...+
+
100 x 102 102 x 104 146 x 148 148 x 150
300
3
3
+
100 x 103 103 x 106
t...t
3
3
144 x 147 147 x 150
+
1
300
1
1
Evaluate
+
100 x 105 105 x 110
t...t
1
1
+
140 x 145 145 x 150​

The correct answer is: 2

Ok here we go ..there are plenty of ways to solve such math problems but we will go for the smartest and easiest ..5x+2y=7  -2x+6y=9we rearrange them into the following ..by multiplying the 1st equation by 2 it becomes 10x + 4y = 14we rearrange it and so it becomes 10x = 14 - 4yas for the second equation we multiply it by 5 and rearrange it so it becomes as to the following ..-10x + 30y = 45rearranging so 10x = 30y -45now 10x equals both 14 - 4y and 30y -45so   14 - 4y = 30y -4531 = 26yy= 31/26 = 1.19 or around 1.2so by now we can calculate x easily as  -2x+6y=9so 2x = 6y -9 = 6 * 31/26 - 9 = -1.84  then x = - 0.92 or around -0.9best luck!

The answe i think is 23

1.   an exact solution requires a radical solution - no decimal approximation.2. (a)4x^3 = 756x^3 = 756/4 = 189x =   cube root of 189 =   5.74   to nearest hundredth answer(b)   189 = 3*3*3*7   so we can write the cube root of 189 as 3∛7 answerchecking (a) 4*(5.74^3 =   756.48   which is very close(b)   4* ((3∛3)^3   = 4*189   = 756   - spot on! 3. i would use solution b because the original question asked for an exact solution.