The only thing you should do is to multiply 7 by 2x and 10.
so you will have: (7*2x) + (7*10) = 14x + 70 :)))
i hope this is helpful
have a nice day
Answer:
c< 7
Step-by-step explanation:
the product of c and 7 is less than 49
Product means multiply
7c< 49
Divide each side by 7
7c/7 < 49/7
c< 7
Answer:
55 meters squared
Step-by-step explanation:
SA = sum of all the areas of the sides
The pyramid has four faces, which we have to add together:
SA = 3(long face area) + base area
Area of a triangle = 1/2 base * height
Area of the base = 1/2 * 3.5 * 4 = 7 meters squared
Area of a long face = 1/2 * 8 * 4 = 16 meters squared
Coming back to our surface area formula, we can plug those areas in:
SA = 3(long face area) + base area
= 3(16) + 7 = <u>55 meters squared</u>
Answer:For each town he builds the number of villagers increase by 1.15 times.
So he has 5 villagers at the start, for the first village he builds he will have;
villagers = 5*1.15 = 5.75
For the next village = 5.75 * 1.15 = 6.6125
in other words for the second village in expanded form = 5 * 1.15 *1.15
as you can see the number of villagers keeps multiplying by the same factor thats 1.15.
For every town that is created, the number is multiplied by 1.15
theres an exponential increase in the number of villagers
Then we can build the following equation;
number of villagers in 15 towns = 5 * 1.15¹⁵
= 40.68
as its number of villagers it cannot be a decimal value therefore round it off to therefore we can use the following equation to find the number of villagers in 'n' number of towns;
villagers in 'n' number of towns = 5 * 1.15ⁿ
Step-by-step explanation: