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sweet [91]
3 years ago
10

I need help on 9-10 (I will mark brainliest)

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
3 0

9) Ben would be farther because its about 270 after 5 hours

10) 15 miles per hour

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Solve for x x squared plus 4X minus 21 equals 0
suter [353]

Answer:

x = -7 and x = 3

Step-by-step explanation:

x² + 4x - 21 = 0 factors as follows:  (x + 7)(x - 3) = 0.

Then x = -7 and x = 3.

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3 years ago
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Find the original price given the total amount and tax or tip rate. Total price: $307.32 Tax or tip rate: 20%
dsp73
20% of 307.32 = 61.464 (Rounded to the nearest tenth, 61.46)

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Please help!! will give brainliest!
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Answer:

Angle EDC = Angle ADC

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ABD ~ ECD because all angles are congruent

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I believe the answer would be B
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Alex73 [517]

Answer:

try to get rid of one of the variables by multiplying both equations by a numbers to make the variables equal. For example if you want to get rid of the x variable and in the equation it says 3x and 2x, you would multiply the entire equation by 2 and 3 to make them both 6x and because you have to increase the entire equation by the same number to make it equal. Then you would subtract them. This would elimnate a variable. solve the remaining equation. Then continue solving the equation from there by plugging in the variable that you just got. Mark me brainliest.

Step-by-step explanation:

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