Answer:
a = c = 85° and b = 95°
Step-by-step explanation:
b and 95° are vertically opposite angles and are congruent, then
b = 95°
a and 95° are adjacent angles on a straight line and sum to 180° , then
a + 95° = 180° ( subtract 95° from both sides )
a = 85°
a and c are vertically opposite and congruent , then
c = 85°
5x+8x= 390
13x=390
x= 30
substitute 30 for x
8(30)= 240 adults
hope this helps
Answer:
Top row: [1 0 0 1000]
Middle row: [0 1 0 300]
Bottom Row: [0 0 1 0]
Step-by-step explanation:
To put it in RREF form, you need to have only 1's in a diagonal and 0's both top and bottom of the 1's. To get to the forms, you need to multiply and add rows together to solve for RREF.
Answer: f(x) = x/2 + 4.
where f(x) is the number of stamps that Tom has, and x is the number of stamps that Myrna has.
Step-by-step explanation:
The statement is:
"Tom has four more than half the stamps that Myrna has"
For how is written, we can model the number of stamps that Tom has as a function f(x).
f(x) represents the number of stamps that Tom has, and x is the number of stamps that Myrna has.
Then:
"four more than a number" is written as:
N + 4 (where N is the number)
"Half the stamps that Myrna has" is written as:
x/2.
Then the whole statement can be modeled as:
f(x) = x/2 + 4.
notice that we have x/2, and f(x) must be a whole number, so Myrna must have an even number of stamps (in that case x/2 will be integer)