Answer:
m less-than-or-equal-to 28
Step-by-step explanation:
Xander's charge for m miles will be (3 +1.50m). He wants this to be no more than $45, so ...
3 +1.50m ≤ 45
1.50m ≤ 42 . . . . . . subtract 3
m ≤ 28 . . . . . . . . . .divide by 1.5
Answer:
Step-by-step explanation:
Multiply the numerator and denominator by the conjugate.
2
Answer:
A) x + 5y = -2
B) 2x -7y = 10
We multiply A) by -2
A) -2x -10y = 4 then we add B)
B) 2x -7y = 10
-17y = 14
y = -(14/17) then plugging this into A)
A) x = -2 +-5*(-14/17)
A) x = -2 + 4.1176470588
A) x = 2.1176470588
Step-by-step explanation:
Answer:
Investment B is £97 more than investment A
Step-by-step explanation:
For investment A
£160is saved for 2 years every month
Total amount at the end of the two years= 2*160*12= £3840
The the percentage interest added is
=2.5/100*3840
= £96
Total amount= 3840+96
Total amount=£ 3936
For investment B
£3800 is compounded every year for two years at 3%
Total amount= 3800(1+0.03/2)^(2*2)
Total amount= 3800(1+0.015)^4
Total amount= 3800(1.015)^4
Total amount= 3800(1.061363551)
Total amount= 4033.18
Total amount= £4033
The difference between the two investment= 4033-3936
= £97
I have to surpass the limit, but the answer is A