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Pie
3 years ago
6

Solve by the substitution method X-7y=-47, -6x-8y=-18

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
6 0
<h2>Answer:</h2>

x is -5 ; y is 6

<h2>Step-by-step explanation:</h2>

x=-47+7y

-6x-8y=-18


-6(-47+7y)-8y=18

y=6


x=-47+7*6

x=-5

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-7 - 7 ( 8x - 7 ) = - 19 + 5x
Yakvenalex [24]
-7 - 7( 8x - 7 ) = -19 + 5x
⇔ -56x + 49 = -12 + 5x
⇔ -61x = -61
⇔ x = 1
6 0
3 years ago
What is the graph of the function f(x)=−⌊x+2⌋?
Nina [5.8K]

Answer:

Step 1: Flip the equation.

−x−2=y

Step 2: Add 2 to both sides.

−x−2+2=y+2

−x=y+2

Step 3: Divide both sides by -1.

−x

−1

=

y+2

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x=−y−2

Step-by-step explanation:

8 0
3 years ago
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PIT_PIT [208]

Answer:

y = 3x + 4

Step-by-step explanation:

✔️First, find the slope using any two given pairs form the table, say (2, 10) and (5, 19):

Slope (m) = ∆y/∆x = (19 - 10) / (5 - 2) = 9/3

m = 3

✔️Find y-intercept (b) by substituting (x, y) = (2, 10) and m = 3 into y = mx + b

10 = 3(2) + b

10 = 6 + b

10 - 6 = b

4 = b

b = 4

✔️Write the equation by substituing m = 3 and b = 4 into y = mx + b

y = 3x + 4

4 0
3 years ago
Simplify this fraction by dividing the numerator and denominator by the largest factor they have in common.
masya89 [10]

Answer:

9/12=3/4

Step-by-step explanation:

Step 1: Find the GCF, which is 3.

Step 2: Divide 3 from the denominator and the numerator.

Then you get your answer of 3/4.

3 0
3 years ago
What is the range of this exponential function? <br> f(x) = 2.7x
Anton [14]

The range of the exponential function f(x) = 2.7ˣ will be from zero to infinity that is (0, ∞).

<h3>What are domain and range?</h3>

The domain means all the possible values of x and the range means all the possible values of y.

The exponential function is given below.

f(x) = 2.7ˣ

We know the value of the exponential function is always positive.

Then the range of the exponential function f(x) = 2.7ˣ will be from zero to infinity that is (0, ∞).

More about the domain and range link is given below.

brainly.com/question/12208715

#SPJ1

7 0
2 years ago
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