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Alina [70]
2 years ago
7

Trini rode her bike 12 miles on Friday. She rode 14 miles on Saturday and 15 miles on Sunday. How many miles did she ride in all

?​
Mathematics
1 answer:
loris [4]2 years ago
4 0

Answer: 41

Step-by-step explanation:

12+14+15= 41

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How to work it out<br> And who drove farther and how many miles farther
OlgaM077 [116]
Easy, just divide
kelly=440mi/8hr=220mi/4hr=110mi/2hr=55mi/1hr
alberto=468mi/9hr=156mi/3hr=52mi/1hr

55>52

kelly drove 55mi in 1 hour
55-52=3
she drove 3 miles more  in 1 hour
5 0
3 years ago
-1.52=3.8x <br><br> solve for x
seraphim [82]

Answer:

x = -0.4

Step-by-step explanation:

7 0
3 years ago
Find the equation of the tangent line to the curve y=x sqrtx at point (4,8)<br><br> Y=?
Viefleur [7K]

Answer: I think y is 32 im not good at this tho

Step-by-step explanation:

7 0
3 years ago
X^2+4x-1/(x+2)^2=0 solve for x
dalvyx [7]
<span>x^2+4x-1/(x+2)^2=0
x^2 + 4x - 1 = 0
</span>
\frac{x^2+10x-7}{x^2+10x+25} =0\\x^2+10x-7=0\\x= \frac{-b\pm\sqrt{b^2-4ac}}{2a};
where a = 1, b = 4 and c = -1

x=\frac{-4\pm\sqrt{4^2-(4\times1\times(-1)}}{2\times1}\\=\frac{-4\pm\sqrt{16+4}}{2}=\frac{-4\pm\sqrt{20}}{2}\\=\frac{-4\pm\sqrt{4\times5}}{2}=\frac{-4\pm2\sqrt{5}}{2}=-2\pm\sqrt{5}\\=-2+\sqrt{5}&#10; \ or \ -2-\sqrt{5}\\x=0.24 \ or \ x = -4.24
5 0
3 years ago
8n/9 = 6.4/0.45<br> Give me the answer TODAY and you will get 20 points!
SSSSS [86.1K]

Answer:

n = 16

Step-by-step explanation:

8n/9 = 6.4/0.45

Cross multiply.

0.45 * 8n = 9 * 6.4

3.6n = 57.6

n = 16

3 0
3 years ago
Read 2 more answers
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