15) a) -3 and -4

-3(-4) = 12 (two negative numbers multiplied or divided together = positive answer)

b) -5 and 6
6(-5) = -30 (one negative number and one positive number multiplied together = negative answer)
-5 + 6 = 1

16) 2.4 kg, 0.7 kg
c) a loss of 15kg should be your answer, because the loss has a larger number proportion than the gained

hope this helps

6 0

3 years ago

The speed of a stream is 4 mph a boat travels 3 miles upstream in the same time it takes to travel 11 miles downstream what is t

vazorg [7]

$\bf \begin{array}{lccclll}
&distance&rate&time\\
&-----&-----&-----\\
upstream&3&r-4&t\\
downstrea&11&r+4&t
\end{array}\\\\\\ recall\implies d=rt\\\\
-----------------------------\\\\

\begin{cases}
3=(r-4)(t)
\\\\
11=(r+4)(t)\\
--------------\\
3=(r-4)(t)\to \frac{3}{r-4}=\boxed{t}\qquad thus
\\\\
11=(r+4)(t)\to 11=(r+4)\left( \boxed{\frac{3}{r-4}}\right)
\end{cases}$

solve for "r"

6 0

3 years ago

Which statements are true about the components of a circle? Check all that apply.

schepotkina [342]

Answer:

Step-by-step explanation:

3 0

3 years ago

Use the rule of 78 to find the finance charge refund if the Finance charge was $476 on a 12 month payment plan and the loan was

Lelu [443]

Answer:

finance charge refund is $91.53