distance = speed * time
the first bus speed = x
second bus = x - 12
the sum of distance = 765 miles
first distance = 6x
second distance = 6 (x -12)
6x + 6(x-12) = 765
x + x -12 = 127.5
2x = 139.5
x = 69.75 mi/h which is the faster bus
the second bus speed = 57.75 mi/h
Answer:
x: 23
y: -46
Step-by-step explanation:
so sorry if this is wrong, but i think thats it
Answer:
D
Step-by-step explanation:
(if he gathers 4 coins each month you will need the variable by it. he was given 20 coins so it is added on to how many coins he has. plus it would be greater than because the question asked when he will have MORE than 50 coins.)
The rule for the product of similar bases with exponents:
(a^b)(a^c)=a^(b+c)
(-5*6)(a^1)(a^8)
(-30)(a^(1+8))
-30a^9
Answer:
The ratio of her savings to expenditure <u>1 : 7</u>.
Step-by-step explanation:
Given:
Neelam's annual income is Rs. 288000.
Her annual savings amount to Rs. 36000.
Now, to get the ratio of her savings to her expenditure:
So, we get the expenditure first:
Expenditure = Income - Savings.
Expenditure = 288000 - 36000 = Rs. 252000.
Now, <em>the ratio of savings to expenditure:</em>
Thus, Savings:Expenditure = 1:7.
Therefore, the ratio of her savings to expenditure 1 : 7.
