So first we want to assign the certain number a variable, let's say x.
So we can write this out as an equation, or:
7x + 12 = 47
Now we can just solve this.
7x + 12 - 12 = 47 - 12
7x = 35
/7 /7
x = 5
So the certain number is 5.
Answer:
f. 85
Step-by-step explanation:
<u>All triangles add up to 180 degrees</u>
BCE=25
then you need to find DBC, you can do that since ABD is isocilies that means all sides are equal in length and angle so 180 divided by 3 (number of side) is 60
isoceles triangle have 2 sides that are equiangular, cince we know BCA is 25 we also know BAC is 25, leaving angle ABC to be 130 (180-50=130)
we subtract angle ABD from angle ABC to get angle DBC, leaving angle DBC to equal 70 degrees
since 70 (angle DBC) + 25 (Angel BCA)= 95
we just subtrract 95 from 180 to get the answer 85 (:
So 20 plus g if it makes 25 then we already know that g is 5 because 20 plus 5 makes 25
Rates of change can be positive or negative. This corresponds to an increase or decrease in the y -value between the two data points. When a quantity does not change over time, it is called zero rate of change.