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3 years ago

Find the x and y intercepts of the graph of the equation 1. 3x-4y=24 2. -6x+3y=12

Mathematics

1 answer:

deff fn [24]3 years ago

7 0

Answer:

Step-by-step explanation:

Recall the intercept form of the line

x/a + y/b = 1

has intercepts at (1,0) and (0,b)

#1. Divide by 24 to get x/8 + y/-6 = 1

The intercepts are at (8,0) and (0,-6)

#2 Divide by 12

x/-2 + y/4 = 1

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Jennifer went to the post office for stamps. She bought the same number of 8-cent stamps and 10-cent stamps. She also bought as

mamaluj [8]

Write it out as a set of equation:
Let x be number of 8 cent stamps, y be 10 cent stamps, and z be 2 cent stamps.
x=y
z=x+y
8x+10y+2z=440
Lets first solve for x:
from x=y and z=2x(from first equation) the last equation is
8x+10x+4x=440
22x=440
x=20
know that x=20, you also know that y=20 as well, since z=x+y, z=40.
So 20 8-cent stamps, 20 10-cent stamps, and 40 2-cent stamps.

5 0

3 years ago

Read 2 more answers

How do you write -4 1/5 as an improper fraction

jekas [21]

-21/5

Multiply 4 and 5, add 1

4 0

3 years ago

Read 2 more answers

If 2x − 4(x + 1) = −12, evaluate x2 − 1.

Vlad [161]

2x-4(x+1)=-13
1) we solve this equation:
2x-4(x+1)=-12
2x-4x-4=-12
-2x=-12+4
-2x=-8
x=-8/-2
x=4

2) we evalute x²-1
x²-1=4²-1=16-1=15

Answer: 15

6 0

3 years ago

Simplify <br>it was x there so u not confused

Mariulka [41]

Step-by-step explanation:

here's the solution: -

=》

$\frac{x {}^{6} }{ {x}^{4} } \times {x}^{2}$

=》

$\frac{x \times x \times x \times x \times x \times x}{x \times x \times x\times \: x } \times x \times x$

=》

$x \times x \times x \times x$

=》

${x}^{4}$

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2 years ago

For the years from 2002 and projected to 2024, the national health care expenditures H, in billions of dollars, can be modeled b

dmitriy555 [2]

Answer:

2019.

Step-by-step explanation:

We have been given that for the years from 2002 and projected to 2024, the national health care expenditures H, in billions of dollars, can be modeled by $H = 1,500e^{0.053t}$ where t is the number of years past 2000.

To find the year in which national health care expenditures expected to reach $4.0 trillion (that is, $4,000 billion), we will substitute $H=4,000$ in our given formula and solve for t as: