Answer:
5(5x-t)
=13×5
25x - 5t
=65
25x -5t + 4x +5t
=65 + 22
29x
= 87
x
= 87÷29
x =3
substituting x=3 in 5x-t=13
15- t
=13
15 - 13
= t
t = 2
Step-by-step explanation:
Answer: she will be able to spend $980 on the bike.
Step-by-step explanation:
We would apply the formula for determining compound interest which is expressed as
A = P(1 + r/n)^nt
Where
A = total amount in the account at the end of t years
r represents the interest rate.
n represents the periodic interval at which it was compounded.
P represents the principal or initial amount deposited
From the information given,
P = $800
r = 7% = 7/100 = 0.07
n = 1 because it was compounded once in a year.
t = 3 years
Therefore,.
A = 800(1 + 0.07/1)^1 × 3
A = 800(1 + 0.07)^3
A = 800(1.07)^3
A = $980
The answer is 80 ft.
Based on the diagram we know that the tree triangle and the building triangle are similar triangles where the lengths of each are proportional to the other.
The lengths of the triangle the tree makes are half of the lengths of the building triangle. So this problem can be solved using ratio and proportion:
to solve for x, all you need to do is cross multiply then divide.
The answer is then 80ft.
Another way to solve this is just by using logic. If the lengths of the tree triangle is half of the building, simply divide the lengths of the building triangle by two.
160ft/2 = 80ft.
Answer:
462.5 pages
Step-by-step explanation:
You find out how many books she reads in 1 day then you can multiply it by 5 to get 5 days.
If she reads 185 in 2 days. Divide 185 by 2 to get 1 day.
185/2 = 92.5 pages
Now multiply 92.5 by 5 to get how many pages she read after 5 days.
92.5 x 5 = 462.5 pages