The standard form: Ax + By = C
y = 90 - 15x <em>add 15x to both sides</em>
<h3>15x + y = 90</h3>
Step-by-step explanation:
I hope it's correct.. And hopefully you understand those steps and also my horrible writing
Answer:
Step-by-step explanation:
So the area of a cube is a²
This means that:
2² = 4cm²
So the area of a triangle is (b*h)/2
This means that:
(3*2)/2 =
6/2 = 3cm²
4cm² + 3cm² = 7cm²
Overall area is 7cm².
Cathy and Iris have 259,459,200 ways to skip countries.
Data;
- Number of countries they are planning to visit = 9
- Number of countries they would like to visit = 13
<h3>Combination</h3>
To solve this problem, we would have to use a mathematical procedure known as combination.
Let us calculate the number of countries that would have to skip.

To decide which country they have to skip, it would be 4 out of 13.

Let's solve this

Cathy and Iris have 259,459,200 ways to skip countries.
Learn more on combination here;
brainly.com/question/12468032
49,98,147,196,245,294,343,392,441,490,539,588,637,686,735,784,833,882,931,980,1029,1078,1127,1176,1225,1274,1323,1372,1421,1470,1519,1568,1617,1666,1715,1764,1813,1862,1911,1960,2009,2058,2107,2156,2205,2254,2303,2352,2401,