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Zepler [3.9K]
3 years ago
5

Y=6x+7 3x - 8y = 4 Substitute?

Mathematics
1 answer:
Rudik [331]3 years ago
3 0

Answer:

Y=1, X= -(4/3)

Step-by-step explanation:

Y=6X+7

3X-8Y=4

Substitute Y=6X+7

3X-8Y=4

3X-8(6X+7)=4

3X-48X-56=4

-45X-60=0, therefore 45X=-60=X=-4/3

Sub. X values in Equation

Y=6X+7

=6(-4/3)+7, therefore Y=-1

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Find SP when CP=Rs.400 and proft%=4%
kvasek [131]

Answer:

\boxed{Selling\ Price = Rs.\ 424}

Step-by-step explanation:

Cost Price = Rs. 400

Profit = 4 % of Cost Price

=> \frac{4}{100} * 600

=> 4 * 6

=> Profit = Rs. 24

Now, Selling Price = Cost Price + Profit

Selling Price = 400+24

Selling Price = Rs. 424

7 0
3 years ago
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What is 3x+y= z for x
dalvyx [7]

Answer:

X= z/3 - y/3

Step-by-step explanation:

4 0
2 years ago
Mabel is comparing the prices of two car rental companies. Company A charges $35 per day and an additional $15 as service charge
patriot [66]
Company A : C = 35D + 15....C is total cost and D is number of days
company B : C = 42D + 10...C is total cost and D is number of days
================
which company charges less for renting for 6 days
company A : 
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company B :
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so company A charges less when renting for 6 days
=================
for 10 days...
company A :
C = 35(10) + 15 = 365

company B :
C = 42(10) + 10 = 430

so there would be (430 - 365) = 65 saved when using company A instead of company B
4 0
3 years ago
HELPPPP Write the equation of a line in slope intercept form with a slope of -3/4 and a y-intercept of -9.
Vanyuwa [196]

Answer:

y=-3/4x-9

Step-by-step explanation:

plz give brainliest!! hope this helps!

5 0
3 years ago
What is the slope of the line that passes through these two points?​
Montano1993 [528]

Answer:

slope of the line is 0

Step-by-step explanation:

given points are:

(-3 , 2)=(x1 , y1)

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=0/4+3

=0/7

=0

4 0
3 years ago
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