Let the second car meets the first car after n hours.
Second car starts with 8km/h, After succeeding hours his speed increases by 0.5 km.
So, Distance travelled by second car = 8 + 8.5 + 9
..... 8+(n-1) 0.5.....(1)
eqn. (1) sum of n terms Of A.P with first term 8
and common difference 0.5.
Sum of all the terms in equation 1 is also equals to the distance travelled by the first car for n hours, i.e. 10n km .
Now, we have (n/2) {16+(n-1) 0.5} = 10n........(2)
From equation (2) we get, n= 9
Hence, Both the cars will meet after 9 hours.
Hope it helps!
Answer:
Answer: A = (x + 20)(x + 10) − 12 is the correct answer
Step-by-step explanation:
We would take the length and width of the patio and subtract it by the area that does not need to be painted.
I got this right on the test!
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Step-by-step explanation:
Marlen wants to know which package of paper towels in the better buy. Both packages contain the exact same type of paper towel.
One package costs $5.94 and comes with 6 rolls, and another package costs $8.73 and comes with 9 rolls.
Which package should Marlen buy?
It's less than 7 because you rounded up from 62.59.
Answer:
the ratio of the surface area of A to the surface area of B is 36 ÷ 49
Step-by-step explanation:
The computation of the ratio of the surface area of A to the surface area of B is shown below;
= Surface area of the sphere a ÷ surface area of the sphere b
= 4πr^2 ÷ 4πr^2
= 6^2 ÷ 14 ÷ 2^2
= 36 ÷ 49
hence, the ratio of the surface area of A to the surface area of B is 36 ÷ 49
The same would be considered and relevant too
