Answer:
60 cm2
Step-by-step explanation:
15x4=60
Answer:
Depends where the parenthesis are. But if you solve it using PEMDANS it's 1.475.
Step-by-step explanation:
When solving something like this, you use PEMDAS, sometimes known as GEMDAS and solve it in this order.
P/G=Parenthesis
E= Exponents
M= Multiplication
D= Division
A= Addition
S= Subtraction.
So skip P, E, M, and S because there are no parenthesis, exponents, multiplication, or subtraction signs.
So 7/8=0.875. 9/15=0.6, and if you add those you get 1.475
Answer:
reflective
Step-by-step explanation:
best guess
Answer:
Let the current speed be "c";
Then the boat speed in still wate is "5c":
-----------------------
Upstream speed:
distance = 12 miles ; rate = 5c-c = 4c mph ; time = 12/4c = 3/c hrs
---------------------------
Downstream speed:
distance = 12 miles ; rate = 5c+c = 6c mph ; time = 12/6c = 2/c hrs
Step-by-step explanation:
Equation:
time + time = 2 1/2 hrs
3/c + 2/c = 5/2
Multiply thru by 2c to get:
6 + 4 = 5c
c = 2 mph (speed of the current)
5c = 10 mph (speed of the boat in still water)
Answer:
.2121/1000
42
Step-by-step explanation:
