A dozen of doughnuts cost $5 and a dozen of croissants cost $6.
Step-by-step explanation:
Let,
Cost of 1 dozen doughnuts = x
Cost of 1 dozen croissants = y
According to given statement;
7x+3y = 53 Eqn 1
x+5y = 35 Eqn 2
Multiplying Eqn 2 by 7
Subtracting Eqn 1 from Eqn 3
Dividing both sides by 32
Putting y=6 in Eqn 2
A dozen of doughnuts cost $5 and a dozen of croissants cost $6.
Keywords: linear equation, elimination method
Learn more about elimination method at:
#LearnwithBrainly
Answer:
Number of can needed to paint inside of the circular helicopter pad = 1
Step-by-step explanation:
The circular pad is given to be 50 feet across.
⇒ Circumference of the circular pad = 50 feet
⇒ 2π·r = 50
⇒ π·r = 25
⇒ r = 7.96 feet
Now, Area of the circular pad = π·r²
⇒ Area = 3.14 × 7.96²
⇒ Area = 198.96 square feet
Now, one can of paint covers 200 feet² area of the pad
Hence, 198 feet² area can also be painted by using one can.
Therefore, number of can needed to paint inside of the circular helicopter pad = 1
Answer:
136 GLASSES
Step-by-step explanation:
THERE ARE 40 CUPS IN 2.5 GALLONS
THERE ARE 36 CUPS IN 2.25 GALLONS
THERE ARE 60 CUPS IN 3.75 GALLONS
SO {40+60=100
100+36=136
Find a counter example?
hmm
|a-b| finds the distance between a and b,
|a|-|b| finds the distance between a and b, such that |a|>|b|
ah ha
so we just need to find a and b such that b>a
b=10
a=5
|a-b|=|5-10|=|-5|=5
|a|-|b|=|5|-|10|=5-10=-5
5≠-5
tada
it is not true for all real numbers
if for all numers such that b>a, it is false
Answer:
y= 12x+3
Step-by-step explanation:
The slope-intercept equation is basically y=mx+b
m is the slope and b is the intercept.
Plug the numbers in for those 2 and there's your answer :)
