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3 years ago

Need help figuring out A=

Mathematics

1 answer:

Bogdan [553]3 years ago

5 0

Better labeling so I can understand.

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Eighty percent of a number

Softa [21]

multiply the number by 0.8 and that will be your answer

7 0

3 years ago

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two automobiles leave a city at the same time and travel along straight highways that differ in direction by 84 degrees. if thei

Gelneren [198K]

Answer:

D = 23.7 miles

Step-by-step explanation:

Given data:

$\theta=84 degrees$

Time $= 20 min = \frac{1}{3} hr$

Distance of A $= (60 mi/hr)\times \frac{1}{3} hr =20 mi$

Distance of B = $(45 mi/hr)\frac{1}{3} hr = 15 mi$

Draw a triangle.

By using cosine formula we can determine the distance between them

$D^2 = 20^2 + 15^2 - 2\times 20\times 15\times cos(84)$

$D^2 = 625 - 600 cos(84)$

$D^2 = 625 - 63.2$

$D^2 = 561.8$

Thus D = 23.7 miles

7 0

3 years ago

How do you do this? This is trig mixed sides

Marina CMI [18]

In this triangle,

$\cos45^\circ=\dfrac n{60}$

You should know that

$\cos45^\circ=\dfrac1{\sqrt2}$

so that

$n=\dfrac{60}{\sqrt2}=30\sqrt2\approx42.4$

8 0

3 years ago

Can anyone please help

lilavasa [31]

Answer:

Adult tickets = $73.5

Child tickets = $20.5

Step-by-step explanation:

${ \rm{3x + 5y = 50 - - - \{eqn \: 1 \}}} \\ { \rm{x + 5y = 31 - - - \{eqn \: 2 \}}} \\$

• Subtract eqn 2 from eqn 1:

${ \rm{2x = 21}} \\ { \rm{x = 10.5}}$

${ \rm{10.5 + 5y = 31}} \\ { \rm{5y = 20.5}} \\ { \rm{y = 4.1}}$

3 0

2 years ago

I need help tried to solve it, but can't....

fiasKO [112]

Answer:

Step-by-step explanation:

I would say B because if only 30 people said water and there is 65 that said something then it would almost be half of what you started with

8 0

2 years ago

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