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sleet_krkn [62]
2 years ago
12

Really confused on this.

Mathematics
2 answers:
Marina CMI [18]2 years ago
8 0

Answer:

B

Step-by-step explanation:

Lets look at A. In A, It says 0.510 is greater than 0.510. That is not true becuase both are equal. A is false.

Lets look at B. In B, it says 0.501 is less that 0.510. This is true. 501 is less than 510. B is true.

Lets look at C. In C, it says 0.061 is greater than 0.510. This is not true becuase 61 is not greater than 510. C is false.

Lets look at D. In B, it says that 0.500 is greater than 0.510. This is not true becuase 500 is less than 510. D is false.

B is the correct answer. I hope this helps! Let me know if I got something wrong so I can fix it.

prohojiy [21]2 years ago
7 0

Answer:

it is C.

Step-by-step explanation:

trust me, i dont have time to expln how, it jst is

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Answer:

Here

Step-by-step explanation:

1. Set B: 20, 18, 7

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7 0
2 years ago
If you were to solve the following system by substitution, what would be the best
xxMikexx [17]
To solve the two equations simultaneously using the substitution method we need to rearrange one of the equation to make either 'x' or 'y' the subject. 

We can try in turn rearranging both equations and see which unknown term would have been easier to solve first

Equation 2x+8y=12

Making 'x' the subject
2x=12-8y , dividing each term by 2
x=6-4y⇒ (Option 1)

Making 'y' the subject
8y=12-2x, multiply each term by 8 gives
y= \frac{12}{8} - \frac{2}{8}x⇒ (Option 2)

Equation 3x-8y=11
Making 'x' the subject
3x=11+8y, divide each term by 3
x= \frac{11}{3}+ \frac{8}{3}y ⇒ (Option 3)

Making 'y' the subject
8y=3x-11, divide each term by 8
y= \frac{3}{8}x- \frac{11}{8} ⇒ (Option 4)

From all the possibilities of rearranged term, the most efficient option would have been the first option, from equation 2x+8y=12 with 'x' as the subject, x=6-4y





3 0
3 years ago
Read 2 more answers
I NEED HELP! Write an equation in standard form of the line
nadezda [96]

Answers:

  • First box = 1
  • Second box = -5
  • Third box = -15

This forms the equation 1x-5y = -15, which is the same as x-5y = -15

=================================================================

Explanation:

Let's find the slope. I'll pick the first two rows to form the two points needed

(x1,y1) = (0,3)

(x2,y2) = (10,5)

These are then plugged into the slope formula.

m = slope

m = (y2-y1)/(x2-x1)

m = (5-3)/(10-0)

m = 2/10

m = 1/5

m = 0.2

The y intercept is b = 3 since this is the y value when x = 0.

With m = 0.2 and b = 3, we go from y = mx+b to y = 0.2x+3

Let's multiply both sides by 5 to turn that decimal value into a whole number. I'm picking 5 since 0.2 = 1/5

So we get

y = 0.2x+3

5y = 5*(0.2x+3)

5y = 5*0.2x+5*3

5y = x+15

Now let's get x and y together, but move that 15 to its own side

5y = x+15

x+15 = 5y

x = 5y-15

x-5y = -15

This is one way to write the equation in standard form.

Standard form is Ax+By = C, where A,B,C are integers. Some math textbooks insist that A > 0. In this case, A = 1, B = -5, and C = -15.

----------------------

As a way to check, we can plug in (x,y) = (15,6) from the third row of the table to see that..

x-5y = -15

15-5(6) = -15

15 - 30 = -15

-15 = -15

This verifies the third row. I'll let you check the first two rows of the table to fully confirm this equation works.

8 0
2 years ago
It costs $32 per day to rent a medium-sized car, plus $0.25 for each mile driven over 150 miles. The equation that represents th
Olin [163]

Answer:

Read explanation

Step-by-step explanation:

A)The slope is the number before the X so 0.25, this represents the amount of money people have to pay for each mile driven over 150 miles.

B) The y-intercept is the number after the X so 32, this number represents the amount people have to pay rent the car before actually using it.

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Answer: 1.5 cakes per hour

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