Remember to follow PEMDAS.
First, solve the parenthesis.
(1 - 15) = -14
13 - 2(-14) ÷ 4
Next, multiply -2 and -14 (remember to bring the signs.
-2 x -14 = 28
13 + 28/4
Next, divide
28/4 = 7
13 + 7
Finally, subtract
13 + 7 = 20
20 is your answer
hope this helps
Answer:
The answer to your question is there were 88 children
Step-by-step explanation:
Data
Total number of people = 188
total cost = $5040
12 more adults than seniors
number of children = ?
adults = a
children = c
Process
1.- Write equations that help to solve this problem
a + c = 188 Equation l
a = c + 12 Equation ll
2.- Solve by substitution. Substitute equation equation ll in equation l
(c + 12) + c = 188
-Solve for c
c + 12 + c = 188
2c + 12 = 188
2c = 188 - 12
2c = 176
c = 176 / 2
c = 88
3.- Conclusion
There were 88 children
Step-by-step explanation:
Write the system of equations as an augmented matrix. Then solve for x and y.
3x+y=-11
-9x-3y=33
Answer:
3/2
Step-by-step explanation:
Since you want to use the SAS theorem, you must find sides that are either side of angles BAC and DAE. You have already made use of sides AE and AC, so the other sides you need to choose are AB and AD. The appropriate relationship for similarity is ...
... AD = 2AB
since you want the sides of triangle ADE to be twice then length of those in triangle ABC.
