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frutty [35]
3 years ago
11

Please help quick!

Mathematics
1 answer:
Bad White [126]3 years ago
5 0

Answer:

-5+7

=2

-5+-7

=-12

Step-by-step explanation:

It is the same thing with adding its opposite(aka change its sign so addition is being imply)

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A pack of four CFL bulbs cost $5.12 what is the cost for CFL bulb HELPPP MEHHH BTW ADD ME ON FORTNITE poineytail360
OverLord2011 [107]

$1.28

If you divide $5.12 by 4 you get 1.28

so it's 1.28 per

3 0
3 years ago
A 450m long field is drawn to a scale 1cm to 90cm.find the lenth of drawing<br><br>​
irina1246 [14]

Answer:

500cm or 5 meters

Step-by-step explanation:

The ratio of drawing and field is 1:90.

So we have to make 450 m into cm.

450 -> is 45,000

Now we can make 2 fractions,

\frac{1}{90}=\frac{x}{45000}

Cross multiply

90*x = 90x

1*45000 = 45000

90x = 45000

Divide 90 to both sides

x = 500cm

<em>Thus,</em>

<em>the drawing's field is 500cm or 5m long.</em>

<em />

<em>Hope this helps :) </em>

5 0
3 years ago
Place value ng 7 sa bilang na 27,342​
zaharov [31]

Answer:

The thousands place

Kalutasan:

(Isinalin mula sa English. Pasensya na sa hindi magandang grammar ko)

libong lugar

4 0
3 years ago
Solve 2(x + 1) + 4 = 8
ahrayia [7]

Answer:

=1

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
How do you solve 4x 5y = -7 and 3x - 6y = 24 using matrices?
solniwko [45]
Aw yis

take the coefients and put them in rows


\left[\begin{array}{ccc}4&5&|-7\\3&-6&|24\end{array}\right]
divide 2nd row by 3
\left[\begin{array}{ccc}4&5&|-7\\1&-2&|8\end{array}\right]
multiply 2nd row by -4 and add to top one
\left[\begin{array}{ccc}0&13&|-39\\1&-2&|8\end{array}\right]
divide top row by 13
\left[\begin{array}{ccc}0&1&|-3\\1&-2&|8\end{array}\right]
multiply top row by 2 and add to bottom row
\left[\begin{array}{ccc}0&1&|-3\\1&0&|2\end{array}\right]

x=2
y=-3

6 0
3 years ago
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