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3 years ago

PLEASE HELP ASAP GIVING 50 POINTS AND BRAINLIEST

Mathematics

1 answer:

diamong [38]3 years ago

4 0

A) 1 cm = 3.5 km

The trail is 8cm long on the map, multiply 8 by 3.5:

8 x 3.5 = 28 km total

B. The first map is 8cm, the second map is 5 cm

The scale factor to change from the 1st map to the 2nd map would be 5/8

Multiply the dimensions on the 1st map by 5/8.

3 cm x 5/8 = 1 7/8 cm

4 cm x 5/8 = 2 1/2 cm

6 cm x 5/8 = 3 3/4 cm

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13 is 29% of what number?

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In the park, Bryce hikes 4 1/2 mi and Jessie hikes 6 7/16 mi. How much farther does Jessie hike than Bryce? Express your answer

soldier1979 [14.2K]

is simply the difference of both amounts, but firstly let's convert the mixed fractions to improper, and subtract.

$\bf \stackrel{mixed}{4\frac{1}{2}}\implies \cfrac{4\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{9}{2}}
\\\\\\
\stackrel{mixed}{6\frac{7}{16}}\implies \cfrac{6\cdot 16+7}{16}\implies \stackrel{improper}{\cfrac{103}{16}}
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
\stackrel{Jessie}{\cfrac{103}{16}}-\stackrel{Bryce}{\cfrac{9}{2}}\implies \stackrel{\textit{our LCD is 16}}{\cfrac{(1)103-(8)9}{16}}\implies \cfrac{103-72}{16}\implies \cfrac{31}{16}\implies 1\frac{15}{16}$

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4 years ago

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If AABC = ADEC, LC = 55°, ZD = 65°, and ZB = 2x D С В B. x = [?]

elena55 [62]

Answer:

x = 30

Step-by-step explanation:

65 + 55 = 120

angle B must equal 60

angle B is labeled as 2x

set up equation to solve for 'x': 2x = 60

x = 30

add up all angles to make sure you get 180 degrees

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