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4 years ago

Which ordered pair in the form(x,y) is a solution of this equation?

Mathematics

1 answer:

Gnom [1K]4 years ago

8 0

The ordered pair is (-2, -3)

Step-by-step explanation:

Step 1: To find whether an ordered pair is a solution, substitute values of x and y and see whether it satisfies the equation.

(-3, -2) ⇒ 7 × -3 - 5 × -2 = -21 + 10 = -11 ≠ 1

(-2, -3) ⇒ 7 × -2 - 5 × -3 = -14 + 15 = 1

(0, 4) ⇒ 0 - 5 × 4 = 20 ≠ 1

(4, 0) ⇒ 7 × 4 - 0 = 28 ≠ 1

So the ordered pair is (-2, -3)

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Bob harvested flour from 4 of his fields. From the first field, he harvested 13 ton of flour. The second field yielded 24 ton of

DIA [1.3K]

Bob harvested 65 tons total (13 + 24 + 14 + 14)
and as far as drawing a diagram I don't know what to tell you

hope this helps

6 0

4 years ago

the weights of bags of baby carrots are normally distributed, with a mean of 34 ounces and a standard deviation of .35 ounces. b

taurus [48]

Answer:

The carrots can weight atmost 34.59 ounces so that it does not need to be repackaged.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 34 ounces

Standard Deviation, σ = 0.35 ounces

We are given that the distribution of weights of bags is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.045

$P( X > x) = P( z > \displaystyle\frac{x - 34}{0.35})=0.045$

$= 1 -P( z < \displaystyle\frac{x - 34}{0.35})=0.045$

$=P( z < \displaystyle\frac{x - 34}{0.35})=0.955$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 34}{0.35} = 1.695\\\\x = 34.59325\approx 34.59$

Thus, the carrots can weight atmost 34.59 ounces so that it does not need to be repackaged.

5 0

3 years ago

Identify the x-intercept. 1) y= 1/5x + 3 2) y= 6x - 7 3) y= -8/3x + 9

irakobra [83]

1) 1/5x + 3=0

1/5x=-3

x=(-3)(5)=-15

2)6x-7=0

6x=7

x=7/6=1.17

3) -8/3x+9=0

-8/3x=-9

-8x=-27

x=27/8=3.375

6 0

3 years ago

Read 2 more answers

Jacie is serving steak and chicken she wants to have at least 20 pounds of meat. Steak is $8 per pound and chicken is $4 per pou

Nady [450]

Answer:

She can get 10 pounds of steak and 10 pounds of chicken.

Step-by-step explanation:

As Jacie wants to have at least 20 pounds of meat, you can write the following equation:

x+y=20, where

x refers to the pounds of steak

y refers to the pounds of chicken

Also, since the statement indicate that the steak is $8 per pound and chicken is $4 per pound and Jacie wants to spend at most 120 dollars on meat, you can write the following equation:

8x+4y=120

So, you have the following equations:

x+y=20 (1)

8x+4y=120 (2)

Now, you can solve for x in (1):

x=20-y (3)

Then, you can replace (3) in (2) and solve for y:

8(20-y)+4y=120

160-8y+4y=120

160-120=8y-4y

40=4y

y=40/4

y=10

Finally, you can relace the value of y in (3) to find x:

x=20-y

x=20-10

x=10

According to this, the answer is that she can get 10 pounds of steak and 10 pounds of chicken.

7 0

3 years ago

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The average annual snowfall in king salmon, Alaska is 45.9 inches. The snow season last about 7 months of a year. About how much

Gelneren [198K]

There is 45.9 inches of snow for the whole year
so average / month = 45.9 / 12 = 3.825 inches

7 0

4 years ago

Read 2 more answers