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liubo4ka [24]
3 years ago
14

Which of these steps will eliminate a variable in this system?

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
3 0
C. multiply the second equation by two. Then add the equations
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2. Every December, Tagaytay City Science National High School is sponsoring a
kirza4 [7]

Answer:

a: 162

b: 142

Step-by-step explanation:

a: december 1=2

a: december 2=6

a: december 3 = 6 x 3 = 18

a: december 4 = 18 x 3 =54

a: december 5 = 54 x 3 =162

~ triples the number of newspapers means "x3" ~

so on the last day, 162 newspapers

B: sum up all the newspapers:

2 + 6 + 18 + 54 + 162

= 8 + 18 + 54 + 162

= 26 + 54 + 162

= 80 + 162

= 242 all in total newspapers

3 0
2 years ago
Find the measure of the angles in the diagram
Usimov [2.4K]
Any angle A[anything]B will have measure 90°.

The angle BWD cannot be determined from information shown here.
4 0
3 years ago
Which operation would isolate the variable in this equation?
Blababa [14]

Answer:

D. Divide both sides by - 8

Step-by-step explanation:

-8x = 312

x = 312/(-8)

x = - 39

5 0
3 years ago
Aubree invests money in an account paying simple interest. She invests $30 and no
Marianna [84]

Answer:

8%

Step-by-step explanation:

$30 divided by 100= 0.3/1%

0.3x8=$2.40

$30+$2.4=32.40

8 0
2 years ago
The perimeter of a triangle is 38cm. The first side is 10cm longer than the second side, the third side is twice as long as the
Natalija [7]
Side 1: 17 Cm.
Side 2: 7 Cm.
Side 3: 14 Cm.

Hope This Helped.
8 0
2 years ago
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