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quester [9]
3 years ago
13

How would I solve this?

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
6 0
6-2x=6x-10x+20  solve for x

combine like terms and get all to the same side of equation
6-2x+10x-6x=20
10x-2x-6x+6=20
8x=20-6
8x=14
x=14/8=7/4
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If y varies directly as x, and y=6 as x=-1, find y for the x-value of 5
Tema [17]

Answer:

y=-30

Step-by-step explanation:

we are given

y varies directly as x

so, we can write equation as

y=kx

where

k is constant of proportionality

We have

at x=-1 , y=6

so, we can use it to find k

6=k(-1)

so, we get

k=-6

now, we can plug it back

y=-6x

now, we can plug x=5

and we get

y=-6\times 5

y=-30

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3 years ago
Write an equation of a line in slope intercept form that is perpendicular to y = -4x -2 and passes through the point (-16, -11).
NISA [10]
Y = -4x - 2
P (-16, -11)
a = -4, b = 0, c = -2
m = -a/b
m = -(-4)/(-2)
m = 4/(-2)
m = -2

y-yo = m(x-xo)
y-(-11) = -2[x-(-16)]
y+11 = -2(x+16)
y+11 = -2x-32
2x+y+11+32 = 0
2x+y+43 = 0

A outra questão é semelhante.
4 0
3 years ago
A pyramid has a square base with side s. the hight of the pyramid is 2/3 that of its side. What expression for the volume of the
Bess [88]

i have no clue sorry i cant help you :)

6 0
3 years ago
What is 30% of 20????
Bezzdna [24]

Answer:

6

Step-by-step explanation:

30% of 20 = 30% * 20

= \frac{30}{100} * 20

= 6

3 0
3 years ago
10
Mekhanik [1.2K]

Answer:

ithink 8470 the answer

Step-by-step explanation:

sana nakatulong

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3 years ago
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