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asambeis [7]
3 years ago
14

Paloma can run the 100-meter dash in 16 1/5 seconds. Savannah's best time is 19.8 seconds. How much faster is Paloma than savann

ah
Mathematics
1 answer:
dalvyx [7]3 years ago
7 0
16 1/5 seconds = 16,200 ms
19,800 ms - 16,200ms = 3,600 ms = 3.2 seconds
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2+3x=-4(5+2x) solve for x, help please
Misha Larkins [42]

Answer:

x=-2

Step-by-step explanation:

2+3x=-4.(5+2x)

Expand  \: the  \: parentheses:

2 + 3x =  - 4.5 - 4.2x

Simplify \:  the \:  arithmetic:

2 + 3x =  - 20 - 4.2x

Solve \:  by \:  distributing:

2 + 3x =  - 20 - 8x

Group  \: all \:  x  \: terms \:  on \:  the  \: left  \: \\  side \:  of  \: the \:  equation

2 + 3x =  - 20 - 8x

Add  \: 8x \:  to  \: both \:  sides:

2 + 3x + 8x =  - 8x  + 8x

Simplify  \: the \:  arithmetic:

11x + 2 =  - 20 - 8x + 8x

Group \:  like  \: terms:

11x + 2 =  - 8x + 8x - 20

Group \:  all  \: constants \:  on \:  the \:  right  \\  \: side \:  of  \: the \:  equation

11x + 2 =  - 8x + 8x - 20

Subtract \:  2  \: from  \: both \:  sides:

11x + 2 -  =  - 20 - 2

Simplify \:  the  \: arithmetic:

11x =  - 20 - 2

Simplify  \: the \:  arithmetic:

11x =  - 22

Isolate \:  the \:  x

11x =  - 22

Divide  \: both \:  sides \:  by  \: 11:

\frac{11x}{11}  =  \frac{ - 22}{11}

Simplify \:  the \:  fraction:

x =  \frac{ - 22}{11}

Find  \: the \:  greatest \:  common \:  factor  \\  \: of  \: the  \: numerator \:  and  \: denominator:

x =  \frac{ - 2.11}{1.11}

Factor \:  out  \: and \:  cancel  \: the \:  greatest   \\ \: common \:  factor:

x =  - 2

Thanks!!!!!!!

4 0
3 years ago
Read 2 more answers
Any help with this please?
Leni [432]

Answer:

∠1=128°

∠2=52°

∠3=47°

∠4=133°

∠5=81°

Step-by-step explanation:

6.

∠1=180-52=128°

∠2=52°(alternate angles)

∠4=180-47=133°

∠3=47°(alternate angles)

∠2+∠3+∠5=180

52+47+∠5=180

∠5=180-99=81°

8 0
3 years ago
What is the result of isolating y2 in the equation below?
lyudmila [28]
STEP-BY-STEP SOLUTION:

( x + 4 )^2 + y^2 = 22

x^2 + 2 × x × 4 + 4^2 + y^2 = 22

x^2 + 8x + 16 + y^2 = 22

y^2 = 22 - x^2 - 8x - 16

y^2 = - x^2 - 8x + 6

FINAL ANSWER:

Therefore, the answer is:

D. y^2 = - x^2 - 8x + 6

Please mark as brainliest if you found this helpful! :)
Thank you <3
6 0
4 years ago
May I have help with This question please I’ll give you brainliest
Tpy6a [65]

Answer: 7/9m - 5

Step-by-step explanation:

2/3m + 1/9m = 7/9m

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3 years ago
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3 years ago
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