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charle [14.2K]
2 years ago
13

Help please! Its worth 25.. no links or files

Mathematics
1 answer:
NeX [460]2 years ago
6 0

Answer:

C

Step-by-step explanation:

4*5=20 include c, and 4*-2=-8 include d

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Varvara68 [4.7K]

it is 11.25................................

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Help me pls its simple (hopefully)<br><br> pls dont guess
Rzqust [24]

Answer:

15.8 in.

Step-by-step explanation:

63.2 / 4 = 15.8

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3 years ago
Dan says he ran twice as far as Karim what possiblities for the distance they each could run
Lelechka [254]
If Karim ran one mile, Dan ran two miles.
If Karim ran three miles, Dan ran six miles.
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3 years ago
Decrease 40 by 12.5%
vredina [299]

Answer:

35

Step-by-step explanation:

Multiply 40 by 0.125 (12.5%) and you get 5

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3 years ago
What's the surface area ratio &amp; the volume ratio??<br><br> please help me ASAP!!
Ulleksa [173]

Answer:

Step-by-step explanation:

Volumes of two spheres A and B = 648 cm³ and 1029 cm³

Things to remember:

1). Scale factor of two objects = \frac{r_1}{r_2} [r_1 and r_2 are the radii of two circles]

2). Area scale factor = \frac{(r_1)^2}{(r_2)^2}

3). Volume scale factor = \frac{(r_1)^3}{(r_2)^3}

Volume scale factor Or Volume ratio = \frac{V_A}{V_B}

                         \frac{(r_1)^3}{(r_2)^3}= \frac{648}{1029}

                         \frac{r_1}{r_2}=\sqrt[3]{\frac{648}{1029} }

                         \frac{r_1}{r_2}=\frac{6(\sqrt[3]{3})}{7(\sqrt[3]{3})}

                        \frac{r_1}{r_2}=\frac{6}{7}

Therefore, scale factor = \frac{r_1}{r_2}=\frac{6}{7}

                                      ≈ 6 : 7

Area scale factor Or area ratio = (\frac{r_1}{r_2})^2=(\frac{6}{7})^2

                                                   = \frac{36}{49}

                                                   ≈ 36 : 49

Volume scale factor or Volume ratio = \frac{648}{1029}

                                                             = \frac{216}{343}

                                                             ≈ 216 : 343

4 0
3 years ago
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