Answer:
4:1 ( i think)
Step-by-step explanation:
We can solve for a and b using substitution
a-b=3
a+b=5
solve and get that a=4 b=1
Which means that it's a 4:1 ratio
Answer:
PEMDAS.
parenthesis first, then exponents, next would be mutiplication/division, then lastple add/subtract.
Step-by-step explanation:
first would be 15-7, then the 3^2, etc
9514 1404 393
Answer:
A = 2000(1 +1)^(t/9)
$64,000
Step-by-step explanation:
The growth rate is 100% in 9 years, so the equation can be written ...
A = 2000(1 +1.00)^(t/9)
The amount in 45 years is ...
A = 2000(2^5) = 2000×32 = 64,000 . . . dollars
Answer:
200 seconds
Step-by-step explanation:
Given rate :
Filling rate = 1/10 gallons per second
How fast can a 20 gallon pool be filled ;
Time = size of pool / filling rate
Time = 20 gallons ÷ 1/10 gallon / second
Time = 20 * 10 / 1
Time = 200 seconds
Supplementary angles is when 2 angles add up to 180 degrees.
We will name the smaller angle a and the bigger angle b.
therefore:
b - 172.6 = a
a + b = 180
Now we substitute:
a + b = 180
b - 172.6 + b = 180
2b - 172.6 = 180
2b = 352.6
b = 176.3
To find a:
a + b = 180
a + 176.3 = 180
a = 3.7
Therefore,
angle a = 3.7 degrees
angle b = 176.3 degrees.
Hope it helps and have a great day ahead
