Answer:
35, 100, 45
Step-by-step explanation:
Remember that the angles of a triangle add up to 180
This question is graciously giving you two answers right there, so A and C are easy
A is 35
C is 45
...but what is B?
This is how you find B: 180 - 35 - 45
B is 100
x + 2y = 9
Answer:
x=-1 y=5
Step-by-step explanation:
A. 4x+y=1 multiply the equation negative 2
B. x+2y=9
-8x-2y=-2 add this to equation b
x+2y=9
-7x=7 divide both sides by -7
x=-1
now substitute x for -1 in either of the original equations
-4+y=1 add 4 to both sides
y=5
-4+5=1
-1+10=9
9 + 7x
Answer:
nine added to seven times a number.
Step-by-step explanation:
''x'' is the unknown number which is being multiplied by 7. Than 9 is added to it.
Answer:
12 Gallons of Water!
___________________________________________________
4.5= 1 hour
9= 2 hours
4.5/3=1.5
So every 1/3 hour equal 1.5 gallons of water!
9+1.5*2= 12
Answer:
12 gallons
Step-by-step explanation:
You just multiply both of the numbers.
a. 5x+4y
b. 4x-5y
c. -5x-4y
d. 5x -4y
e. 4x +5y
5.3
It is a rational number because 5.3 can be made into a fraction or ratio.
hope it helps!