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nalin [4]
4 years ago
8

Which expressions are equal to the expression –2.7 – 16.4?

Mathematics
1 answer:
bija089 [108]4 years ago
6 0
B and D are the same as your expression because adding a negative number is the same as taking away. whereas in A and C, taking away a negative is the same as adding, which you don't want
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−6x + 14 < −28 OR 9x + 15 ≤ −12. solve for x.
sasho [114]

Answer:

x>7 or x ≤ -3

Step-by-step explanation:

Solving the 1st inequality

-6x +14 < -28 --------------- (Collect like terms)

-6x < -28 - 14

-6x < - 42 -------------------- (Divide both sides by -6)

Note: If you decide an inequality expression by a negative value, the inequality sign changes)

-6x/-6 > -42/-6

x > 7

Solving the 2nd inequality

9x + 15 ≤ −12 ----------- (Collect like terms)

9x ≤ −12 - 15

9x ≤ −27 ------------------(Divide both sides by 9)

9

9x/9 ≤ −27/9

x ≤ -3

Bring both results together, we get

x>7 or x ≤ -3

The final result is complex (i.e. can't be combined together).

4 0
4 years ago
Pls answer fast, i need to go to friends but parents wont let me.
Tanya [424]

Answer:

line C

Step-by-step explanation:

The equation would be

y= 1/2x

So that means the slope is 1/2

Starting at (0,0) we would go up 1 and over 2

That would be point (1,2)

That is the purple line, line C

4 0
4 years ago
Maria is training to be a long distance runner. She runs once every day. On the average, each day that Maria has run, she has im
Sav [38]

Answer:

9 mins and 8 secs

Step-by-step explanation:

7 0
3 years ago
Mrs.farnam is getting new carpet in her classroom! Her classroom is 18 meters long and 12 meters wide. How many square meters of
aleksley [76]

Answer:

216 meters

Step-by-step explanation:

make a 4 square box. put the numbers 10 & 2 on top an 8 & 10 on the side.then multiply...

8 * 10 = 80

8 * 2 = 16

10 * 10 = 100

&

10 * 2 = 20

then add all the numbers together.... 80+16+100+20 = 216 meters

the end. Can u mark me the brainliest when u get the chance? thnxs

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3 years ago
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