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irinina [24]
3 years ago
11

Combine like terms to create an equivalent expression. 3.4-2.8d+2.8d-1.3

Mathematics
1 answer:
jekas [21]3 years ago
3 0

Answer:

2.1

Step-by-step explanation:

when you combine like terms you have to combine the d's with the d's and the nonvariable number with the nonvariable number.

this is how it should look like

(-2.8d+2.8d)+(3.4+(-1.3))

a negitive plus a posative cancel out so the d's disapier and now you only have 3.4+-1.3. this is just like subtracting so you can put it like this

3.4-1.3 and you will get 2.1

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A bag of marbles contains 4 red marbles, 5 yellow marbles, 2 green marbles, and 7 blue marbles. You draw one marble from the bag
klio [65]
This is an example of probability.
4 0
3 years ago
A.Sum of integer and its additive inverse is ___________.B.Sum of -22 and -44 is ______________.C.-36 ÷ ( ___)=-9d._________ is
Ede4ka [16]

Answer:

  A. 0

  B. -66

  C. 4

  D. 998

  E. -12

Step-by-step explanation:

A. By definition, the sum of anything and its additive inverse is zero.

__

B. If you have trouble with sums, your calculator can help.

  -22 + (-44) = -22 -44 = -66

__

C. -36/x = -9 can be solved by multiplying by x and dividing by -9:

  -36 = -9x

  -36/-9 = x = 4

Since the product of the divisor and quotient is the dividend, dividing the dividend by either gives the other. Here, your dividend is -36 and your quotient is -9. To find the divisor, you can divide -36 by -9, as we did.

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D. The absolute value function changes the sign of negative numbers to positive:

  |-998| = 998

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E. If you have trouble with sums, your calculator can help.

  (−2)−[(−3)−(−7)−(−6)]

  = -2 -(-3 +7 +6) = -2 -10 = -12

4 0
3 years ago
What is the value of the expression?
mr Goodwill [35]

Answer: B.792

Step-by-step explanation:

5 0
2 years ago
Please need some help on this
vredina [299]
11111111111111117373646328299292922
8 0
3 years ago
Bad at math... help please ):
zavuch27 [327]
Smallest side XYZ/ Smallest side ABC = Longest side XYZ/ Longest side ABC
Let longest side XYZ be x
280/112 = x/144
x = (280/112)×144
x = 360
Option D will be your answer

Hope it helped!
3 0
3 years ago
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