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3 years ago

What is the value of (-3 + 3) + (-2 +31)?

Mathematics

1 answer:

gizmo_the_mogwai [7]3 years ago

7 0

Step-by-step explanation:

(-3+3)+(-2+31)

<u>salution</u>

-3+3-2+31

=0-2+31

=29

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Luden [163]

$\left[\begin{array}{ccc}2&6&3\\-5&1&4\end{array}\right]$

R1 ÷ 2 = $\left[\begin{array}{ccc}1&3&1.5\\-5&1&4\end{array}\right]$

R2 ÷ -5 = $\left[\begin{array}{ccc}1&3&1.5\\1&-0.2&-0.8\end{array}\right]$

R2: R1 - R2 = $\left[\begin{array}{ccc}1&3&1.5\\0&3.2&2.3\end{array}\right]$

R2 ÷ 3.2 = $\left[\begin{array}{ccc}1&3&1.5\\0&1&0.71875\end{array}\right]$

R1: R1 - 3R2 = $\left[\begin{array}{ccc}1&0&0.65625\\0&1&0.71875\end{array}\right]$

Answer: x = 0.65625, y = 0.71875

8 0

3 years ago

What is 412, 825 round to the nearest ten?

RideAnS [48]

Tens place is 2
look to teh right
5> or = to 5 so round up:
412,830

5 0

3 years ago

Sally uses her van to deliver boxes to shops.

Aleonysh [2.5K]

Answer:

1500kg

Step-by-step explanation:

50*30=1500

6 0

2 years ago

Peter is saving money to buy an MP3 Player. After one month, he has $50. After two months he has $85. After three months, he has

taurus [48]

Answer:

9 months

Step-by-step explanation:

peter is saving 35 dollars per month.

295=35x

295/35=8.42 which is less than 295

9 is an approximate answer

35*9 equals 315, which is enough to pay 295 and have 20 dollars left over

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3 years ago

Trey received a $15.00 gift card for a photo center. He used it to buy prints that cost 8 cents each. The remaining balance, B i

Ostrovityanka [42]

Answer:

$13.40

Step-by-step explanation:

Multiply 0.08 by 20 to get 1.60 then subtract that from 15 to get 13.40

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3 years ago