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sasho [114]
3 years ago
5

A system of equations is shown below: Equation A: 4c = d − 8 Equation B: c = 5d + 8 Which of the following steps should be perfo

rmed to eliminate variable d first?
A. Multiply equation B by 4
B. Multiply equation A by -5
C. Multiply equation A by 4
D. Multiply equation B by 5
Mathematics
1 answer:
Alchen [17]3 years ago
3 0
<span>Equation A: 4c = d − 8
</span><span>Equation B: c = 5d + 8 
</span>
Multiply Equation A by -5:
Equation A: - 20c = -5d + 40

Equation (1) + (2) :
-19c = 48

Answer: <span>B. Multiply equation A by -5</span>
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nikdorinn [45]

Answer:

Washer 225

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7 0
3 years ago
A giraffe can run up to 46.93 ft. per second. How far could a giraffe run in 1.8 seconds? Justify your answer
frozen [14]
84.474 because 46.93(1.8) = 84.474
3 0
3 years ago
1
galina1969 [7]

Answer:

X .

-1 | 2

-11-1

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0

0

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-1 1

0 3

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0 0

2

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3

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A. III

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D

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Step-by-step explanation:

7 0
3 years ago
What multiples for 90 and adds up to -23 ?
melamori03 [73]

Easy buddy...

_________________________________

Step (1)

I choose a number which is x

_________________________________

Step (2)

Multiplies by 90 :

90x

_________________________________

Step (3)

Adds up to -23 :

90x - 23

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And we're done.

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7 0
3 years ago
Select the correct vectors.
Paha777 [63]

In the case above, the correct vectors are:

  • <25.98, -15>.
  • <1.71, 4.7>.

<h3>What is the ship vector about?</h3>

The solution for the Ship's vector are:

Note that the Horizontal aspect = 30 cos 30  

                                                   = 25.98.

For the  Vertical aspect = 30 sin(-30)

                                        = -15.

Hence it will be  <25.98, -15>.

In regards to the current's vector:

The Horizontal aspect=  5 sin 20

                                       = 1.71.

The Vertical aspect = 5 cos 20

                                     = 4.7.

Hence it will be <1.71, 4.7>.

Therefore, In the case above, the correct vectors are:

  • <25.98, -15>.
  • <1.71, 4.7>.

Learn more about vectors from

brainly.com/question/23973576

#SPJ1

4 0
2 years ago
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