| 18 - (-13) | it’s subtracting integers

1 answer:

7 0

Answer: 31

How: If there are two negative signs like this, you would connect them together and make it into a addition sign where you then can add them.

You might be interested in

Algebra 1 (pic included)

Marizza181 [45]

If you are given that b = 2, then just plug it in:
$2(2)-4 = 4-4 = 0$

So, your final answer is 0.

3 0

3 years ago

The time it takes you to go a certain distance varies inversely with the speed of travel. Suppose it takes you 4 hours to get to

fgiga [73]

$\bf \qquad \qquad \textit{inverse proportional variation}
\\\\
\textit{\underline{y} varies inversely with \underline{x}}\qquad \qquad y=\cfrac{k}{x}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------$

$\bf \textit{time it takes varies inversely with the speed rate}\qquad \stackrel{time}{t}=\cfrac{k}{\stackrel{rate}{r}}
\\\\\\
\textit{we also know that }
\begin{cases}
t=\stackrel{hrs}{4}\\
r=\stackrel{mph}{50}
\end{cases}\implies 4=\cfrac{k}{50}\implies 200=k
\\\\\\
\boxed{t=\cfrac{200}{r}}
\\\\\\
\textit{if your rate r = 40, what is your distance \underline{t}?}\qquad t=\cfrac{200}{40}$

3 0

3 years ago

Answer this and give an explanation.

Margarita [4]

Answer:

3/9

Step-by-step explanation:

1/3*3

4 0

3 years ago

Read 2 more answers

Bridgette measured an Italian restaurant and made a scale drawing. The scale of the drawing was 8 millimeters: 5 meters. The res

Goshia [24]

Answer:

The kitchen drawing is 48 millimeters long.

7 0

3 years ago

How do you know if a equation is a proportion

erastovalidia [21]

You can set up a proportion to determine the length of the enlarged photo

6 0

3 years ago