MATHEMATICS HIGH SCHOOL

1. Solve through substitution
y = -3.x + 4. y = 4x – 10
Enter your math answer

Answers

Answer 1

Answer:

Answer:

y= -2 and x= 2.

Step-by-step explanation:

(y=-3x+4)4

(y=4x-10)3

make the x's cancel out.

you get 7y=-14.

y=-2.

-2=-3x+4

x=2

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How do you divide 15 pounds of rice into 4 unequal measuring using ounces

Answers

you have to cut 15 pounds into 3.75 four times

Write 3,000,000 in scientific notation.Show your work in the work space below.

Hint: Move the decimal place to the left.

Answers

Answer:

3 × 10^6

Step-by-step explanation:

3 × 1,000,000 = 3 × 10^6

Answer:

3,000,000 = 3 × 1,000,000 = 3 × 106.

Step-by-step explanation:

3,000,000 is a decimal expression, and 3 × 106 is scientific notation.

Hope this helps :))

Monica earned twice as much as Samuel mowing lawns. if Monica earned $48, how much did Samuel earn

Answers

monica earned 2×samuel's paycheck
so, if monica earns 48, we set that equal to 2×samuel's paycheck (let Y represent his paycheck)
so, 48=2×Y divide each side by 2
Y=24, so samuel made $24

Samuel earned $96 this is bc 48 + 48 = 96

The ordered pairs below represent a linear relation between x and y.(-3,1), (-2,3), (-1,5), (0,7), (1,9), (2,11)

Which of the following is a correct statement about this relation?

A. The slope of the line represented by this table is -2 and the y-intercept is -4.
B. The slope of the line represented by this table is 2 and the y-intercept is 7.
C. The slope of the line represented by this table is 2 and the y-intercept is -4.
D. The slope of the line represented by this table is -2 and the y-intercept is 7.

Answers

Answer:

Option B - The slope of the line represented by this table is 2 and the y-intercept is 7.

Step-by-step explanation:

Given : The ordered pair below represent a linear relation below x and y.

(-3,1), (-2,3), (-1,5), (0,7), (1,9), (2,11)

The slope form is $y=mx+c$

where m is the slope of line and c is the y-intercept.

or to find slope between two points are $m=(y-y_1)/(x-x_1)$

Since they are ordered pairs so, there slopes were same

Let take points (-3,1), (-2,3)

$m=(y-y_1)/(x-x_1)$

$m=(3-1)/(-2-(-3))=(2)/(1)=2$

Therefore, the slope of the given linear function is 2

Now, we have to find y intercept we put in slope form

$y=mx+c$

$y=2x+c$

Given pairs are ordered therefore, they satisfy the above equation so let point (-2,3)

$3=2(-2)+c$

$c=3+4=7$

So, slope of the line is 2 and y-intercept is 7.

Therefore, Option B is correct.

Slope = rise/run
(-2,3) (0,7)

7-3 /0- -2 = 4/2= 2
When x = 0 y=7 intercept

Answer is B

Explain how to do the factor tree for 75

Answers

separate 75 into two numbers. Lets use 15 and 5. 15 can be reduced into 3 and 5, while 5 cannot be reduced. The remaining numbers you have will be 5, 5, and 3.

75
/ \
15 5
/ \
3 5

Like this- . 75 . /. \. . 25. 3 . /. \. . 5. 5. So the factors are- 3x5x5. Hope I helped!

How do i find the answer to this problem? 2/6 x 24 = m working with fractions