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3 years ago

Need help with algebra. Solve #1 and explain how you got your answer.

Mathematics

1 answer:

Norma-Jean [14]3 years ago

7 0

X=y-a
by simplifying both sides of the equation then isolating the variabke

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The distance from Boulder City, NV to Santa Fe, NM is around 600 miles. If a map has a scale of 0.3 in for every 30 mi, how far

Alborosie

600 miles is the total and a rate of 30 mi per 0.3 in

600 divided by 30 = 20 units

each unit is 0.3 inches

20*0.3 = 6

6 inches

8 0

3 years ago

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A cone of radius 3cm and slant height 6cm is cut into four identical pieces. Calculate the total surface area of the four pieces

Daniel [21]

Area of cone=3.14*9+3*6*3.14=27*3.14

=84.78 cm^2 if we cut into four identical pieces we get two triangle surfaces also for 1 piece and and 1/4 of the original surface area =21.195+15.588=36.783squarecm

5 0

3 years ago

Evaluate abc if a = -2/5 , b = 20/32, and c = -4/10 . Express your answer as a fraction in simplest form. *

Bumek [7]

Remember that when multiplying fractions, we multiply everything on the top and everything on the bottom.

a * b * c

(-2 / 5) * (20 / 32) * (-4 / 10)

(-2 * 20 * -4) / (5 * 32 * 10)

160 / 1600

1 / 10

Correct answer: D. 1/10

Hope this helps!! :)

3 0

3 years ago

{ y = - 4x-23-4x-3y=13

sleet_krkn [62]

For this case we have the following system of equations:

$y = -4x-23\\-4x-3y = 13$

We solve by the substitution method:

We substitute the first equation in the second equation:

$-4x-3 (-4x-23) = 13$

We apply distributive property considering that $- * - = +:$

$-4x + 12x + 69 = 13\\8x + 69 = 13$

We subtract 69 from both sides of the equation:

$8x = 13-69\\8x = -56$

We divide by 8 on both sides of the equation:

$x = \frac {-56} {8}\\x = -7$

We look for the value of the variable y:

$y = -4 (-7) -23\\y = 28-23\\y = 5$

Thus, the solution of the system is $(x, y): (-7,5)$

Answer:

$(x, y): (-7,5)$

7 0

4 years ago

Lol again another math solver help pls! LOL

gladu [14]

Answer:

b = 4

Step-by-step explanation:

5-1=5b-4b

4=b

4 0

3 years ago

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