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2 years ago

Options: Infinitely many no one

Mathematics

1 answer:

ra1l [238]2 years ago

7 0

Answer:

Infinitely Solutions

Step-by-step explanation:

Solution:

$8x+2y=8.......(1)$

$y=-4x+4.......(2)$

By substitute equation (2) in equation (1) , we will have

$8x+2y=8\\8x+2(-4x+4)=8\\8x-8x+8=8\\8x-8x=8-8\\0=0$

Hence,

Using a graphing calculator, we can see that both lines are equal.

Hence, The system infinitely many solutions

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input x 2,4,6,8 output y 1, 2, 3, 4 compare the table with the relation f(x) =3x-10. Which relation has a greater value when x=

vekshin1

Answer:

The function f(x)=3x-10 has the greater value at x=8.

Step-by-step explanation:

In the table, x=8 corresponds to y=4.

In the function f(x)=3x-10 when x=8, y corresponds to f(8)=3(8)-10=24-10=14.

SInce 14>4 , the the function f(x)=3x-10 has a greater value at x=8 than the table does.

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3 years ago

At a carry-out pizza restaurant, an order of 3 slices of pizza, 4 breadsticks, and 2 juice drinks costs $13.35. A second order o

BartSMP [9]

Answer: Pizza = $2.95, Breadstick = $0.50, Juice = $1.25

Step-by-step explanation:

Let P represent the cost of a slice of pizza

and B represent the cost of breadstick

and J represent the cost of a juice drink.

EQ1: 3P + 4B + 2J = 13.35

EQ2: 5P + 2B + 3J = 19.50

EQ3: 4B + J = P + 0.30 --> P - 4B - J = -0.30

Let's eliminate B from EQ1 and EQ2 to form EQ4:

3P + 4B + 2J = 13.35 → 1(3P + 4B + 2J = 13.35) → 3P + 4B + 2J = 13.35

5P + 2B + 3J = 19.50 → -2(5P + 2B + 3J = 19.50) → -10P - 4B - 6J = -39.00

EQ4: -7P -4J = -25.65

And eliminate B from EQ1 and EQ3 to form EQ5:

3P + 4B + 2J = 13.35

P - 4B - J = -0.30

EQ5: 4P + J = 13.05

Now, eliminate J from EQ4 and EQ5 to solve for P:

-7P - 4J = -25.65 → 1(-7P - 4J = -25.65) → -7P - 4J = -25.65

4P + J = 13.05 → 4(4P + J = 13.05) → 16P +4J = 52.20

9P = 26.55

÷9 ÷9

P = 2.95

Plug in P = 2.95 into EQ4 or EQ5 to solve for J:

EQ5: 4P + J = 13.05

4(2.95) + J = 13.05

11.80 + J = 13.05

J = 1.25

Plug in P = 2.95 and J = 1.25 into either EQ1 or EQ2 or EQ3 to solve for B:

EQ3: 4B + J = P + 0.30

4B + 1.25 = 2.95 + 0.30

4B + 1.25 = 3.25

4B = 2.00

B = 0.50

Check (since we used EQ3 to find B, use either EQ1 or EQ2):

EQ2: 5P + 2B + 3J = 19.50

5(2.95) + 2(0.50) + 3(1.25) = 19.50

14.75 + 1.00 + 3.75 = 19.50

19.50 = 19.50 $\checkmark$

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3 years ago

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Softa [21]

Answer:

D. The square root of 84

Step-by-step explanation:

the square root of 84 = 9.16515138991...

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3 years ago

Which expression represents the algebraic phrase ""negative 3.9 less than one third of a number""?

yarga [219]

Step-by-step explanation:

Below is an attachment containing the solution

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4 years ago

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If x represents hours worked and y represents total earnings in dollars, then the equation that corresponds to the earnings of s

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The correct option is B. y=12.75x

cuz, y = total earnings

and x = hours worked

so total earnings(y) should be equal to the amount of money paid for an hour(12.75) * number of hours worked

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3 years ago

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