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AveGali [126]
2 years ago
7

Match each system to the number the first equation can be multiplied by to eliminate the X-terms when adding to the second equat

ion. 10x - 4y =-8 1/2 –5x +6y = 10 3x - 8y = 1 6x + 5y = 12 -1/2 8x + 10y = 16 --4x - 5y = 13 -2 -2x + y = 3 4x + 3y = 9 + 2. ​

Mathematics
1 answer:
sasho [114]2 years ago
3 0

Answer:

The first one is 1/2, the second one is -2, the third one is -1/2, and the fourth one is 2.

Step-by-step explanation:

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Rewrite 4.86 x 10^12 in decimal notation.<br><br> help pleaseee
UkoKoshka [18]

Answer:

second one down

4 860 000 000 000

Step-by-step explanation:

count out 12 zeros after the 4 and you will find the one in decimal notation

7 0
2 years ago
A stereo is marked down $75. If this is a 15% decrease, what was the original price for the stereo?
g100num [7]
The original price was $500
First we find 15% of what is $75
15/100 x N =$75
n = $7500/15
n = $500
5 0
2 years ago
A cat’s owner lists his cat’s weight at 8 lb. The cat’s actual weight is 8.7 lb. To the nearest whole number, what is the percen
Anna11 [10]

Answer:

3 times 100 divided by 15 gives us 20%

Step-by-step explanation:

5 0
2 years ago
Which ordered pair is a solution to this equation?
ElenaW [278]
For (11, 1): (11 + 3)1 = 14(1) = 14
For (5, 2): (5 + 3)2 = 8(2) = 16 ≠ 14
For (7, 2): (7 + 3)2 = 10(2) = 20 ≠ 14
For (3, 2): (3 + 3)2 = 6(2) = 12 ≠ 14

Therefore, (11, 1) is a solution to this equation.
8 0
3 years ago
3. Consider the expressions sq root of 15, sq root of 97 and sq root of 40 Locate the approximate value of each on a number line
Crank

Answer:

Square root of 15

√ 15 = 3.9 (Rounding to the nearest tenth)

Square root of 97

√97 = 9.9 (Rounding to the nearest tenth)

Square root of 40

√40 = 6.3 (Rounding to the nearest tenth)

Step-by-step explanation:

Square root of 15

√ 15 = 3.9 (Rounding to the nearest tenth)

Square root of 97

√97 = 9.9 (Rounding to the nearest tenth)

Square root of 40

√40 = 6.3 (Rounding to the nearest tenth)

Location on a number line

√ 15, between + 3 and + 4, very close to +4

√40, between + 6 and + 7, close to +6

√97, between + 9 and + 10, very close to +10

5 0
2 years ago
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