Answer:
the number that goes in the blank is 8
Step-by-step explanation:
We know that C is 385, so we can plug that in to get the equation 385=15n+85. To find the number of watches, we have to solve for n.
To do that we have to...
385=15n+85
First subtract both sides of the equal sign by 85 (because we need to do the opposite)
300=15n (because 85-85 is zero, so we eliminated that, and 385-85 is 300)
Now we divide both sides of the equal sign by 15 (again, opposites)
20=n (because 15n/15 leaves us with n since both 15s cancel out, and 300/15 is 20)
So the number of watches made were 20.
<span>8(x-3.7)
To find this, you must first use the distributive property.
8 • x = 8x
8 • -3.7 = -29.6
</span>8(x-3.7) = 8x - 29.6
Since there is no way to completely solve this since it's only an expression and not an equation, this is in simplest form.
tan ∅ and cot ∅
tan ∅ is undefined for ∅ = 
and since cot ∅ = 1/ tan ∅ then cot ∅ is also undefined for ∅ =
Answer:
39cm
Step-by-step explanation: 19cm+15cm+5cm=39
