Answer:
C = 40 + 0.17M
Step-by-step explanation:
Total monthly charge = Fixed base fee + charge per minute*total number of minutes
C = 40 + 0.17*M
C = 40 + 0.17M
Answer:
![AE=20\ units](https://tex.z-dn.net/?f=AE%3D20%5C%20units)
Step-by-step explanation:
we know that
If AB is parallel to CD
then
triangles ABE and EDC are similar
Remember that
If two triangles are similar
then
the ratio of their corresponding sides is equal and their corresponding angles are equal too
In this problem
![\frac{AE}{ED}=\frac{AB}{CD}](https://tex.z-dn.net/?f=%5Cfrac%7BAE%7D%7BED%7D%3D%5Cfrac%7BAB%7D%7BCD%7D)
substitute the values and solve for x
![\frac{2x+10}{x+3}=\frac{10}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B2x%2B10%7D%7Bx%2B3%7D%3D%5Cfrac%7B10%7D%7B4%7D)
![4(2x+10)=10(x+3)\\8x+40=10x+30\\10x-8x=40-30\\2x=10\\x=5\ units](https://tex.z-dn.net/?f=4%282x%2B10%29%3D10%28x%2B3%29%5C%5C8x%2B40%3D10x%2B30%5C%5C10x-8x%3D40-30%5C%5C2x%3D10%5C%5Cx%3D5%5C%20units)
Find the length of AE
-----> substitute the value of x
![AE=2(5)+10=20\ units](https://tex.z-dn.net/?f=AE%3D2%285%29%2B10%3D20%5C%20units)
For example, let's say that you had a birth day party, and at the party, you had 11 people all ready bringing food, but you needed 28 people to bring food. And in this equation, "x" would represent the amount of people that needs to come to bring food, and that 28 would then be the total.
We then do, 28 - 11 = 17.
And therefore, there would then have to be 17 people who would have to attend to bring food for the part. (end of example).
So this above would show and model on how to use these kind of equations in a real situation in a everyday life.
Answer:
20m
Step-by-step explanation:
A=s^2
root 25=s
s=5m
so to find perimeter we will use the formula 4s
P=4×5
P=20m
please mark as brainliest
Answer:
Ariel answer is wrong.
Step-by-step explanation:
Given that Ariel had done a Math problem for a triangle with sides
9,15 and 12. She concluded that these sides are not that of a right triangle.
To check whether Ariel is right:
Greater side = 15
Hence greatest angle will be opposite 15
Let us check pythagorean theorem
smaller sides are 9 and 12
Square and add them
9 square +12 square = 81+144 = 225 =15 square
We find that Pythagorus theorem is satisfied
Hence it is concluded that the triangle is right angled and Ariel was wrong