Answer:
Step-by-step explanation: For example, if we have matrix A whose all elements in the first column are zero. Then, by one of the property of determinants, we can say that its determinant is equal to zero. Hence, A would be called as singular matrix. Note that singular matrices are non-invertible (their inverse does not exist).
first work out the value of 2 bags of chips which is: 0.75 + 0.75 = 1.50p
take that away from the total: 22.50-1.50=21 pounds
since what is left (21) is how much 4 ham sandwiches cost we can just divide 21 by 4 which is 5.25
so each sandwich costs 5.25 pounds
I believe it’s 5x
The product would be 5 • x = 5x
<span>π radians =180∘</span>
1 radian = tex] \frac{180°}{ \pi} [/tex]π
3 radians = 
Answer:
1590
Step-by-step explanation:
1500 x 0.02
= 30
30 x 3
= 90
1500+90 = 1590
(ps.. there was an equation for this i just forgot it, you can look it up and check it)
