Answer:
buy 28 blue mask and 14 white mask
Step-by-step explanation:
Answer:
Her original speed is 54 mi/h
Step-by-step explanation:
Here, we want to calculate the original speed
Let this be x mi/h
Mathematically;
distance = speed * time
So she drove at a speed of x mi/h for 2 hours, then (x-10) mi/h for the remaining 1 hour for a total 152 mi journey
Mathematically, we can add up the journey parts as
x(2) + (x-10)1 = 152
2x + x - 10 = 152
3x = 152 + 10
3x = 162
x = 162/3
x = 54 mi/h
<span><span>If you want to evaluate what
is 10 percent of 400, you
can do this using the following few steps:</span><span>
10% * 400 = 10/100 * 400 = 0.1 * 400 = 40
<span>10% of 400 is 40.</span></span></span>
Answer:
The decimal number is 0.964
Step-by-step explanation:
we have
step 1
Multiply each fraction by the whole number
step 2
Convert each fraction in a decimal number
Remember
Move the decimal point to the left as many places as there are zeros in the factor.
Move the decimal point one step to the left (10 has one zero).
Move the decimal point two steps to the left (100 has two zeros)
Move the decimal point three steps to the left (1000 has three zeros)
step 3
Adds the number
Answer:
B) 8.9
Step-by-step explanation:
12^2 - 8^2 = square root144 - sq root64 = sq root80 = 8.9