MATHEMATICS HIGH SCHOOL

Y = 7 (15 + x)solve for x
How many minutes did you spend on a new song (x) if you practiced 210 minutes last week? 245 minutes? 315 minutes?

Answers

Answer 1
Answer: y equals the # of hours u practiced so u substitute y for the # of hours and then solve for x. if im right u multiply x times 7 and u get how many minutes per week u practice the new song. and just the x represents what u practice in a day 210=7(15+x) 210/7=15+x 30-15=x 15 min =x 245=7(15+x) 245/7=15+x 35-15=x 20=x 315=7(15+x) 315/7=15+x 45-15=x 30 min=x

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What is the selling price of a table ticketed at $1,234 with a 22% discount?A. $271.48
B. $962.52
C. $926.25
D. $1,000.00

Answers

Multiply $1,234 by 0.22 to find how much money you will be saving:

$1,234 x 0.22 = $271.48

Now, subtract this from the actual price to find the selling price:

$1,234 - $271.48 = $962.52

The selling price is B. $962.52

Answer:

b

Step-by-step explanation:

The selling price of a table ticketed at $1,234 with a 22% discount is $962.52. $1,234 x 0.22 = $271.48 $1,234 - $271.48 = $962.52

Which terms and 45p4q have a GCF of 9p3? Check all that apply. 18p3r
27p4q
36p3q6
63p3
72p3q6

Answers

Answer:

 18p^3r

and  63p^3

Step-by-step explanation:

We have to check which term and 45p^4q has GCF  9p^3

GCF of  18p^3r   and  45p^4q= 9p^3

GCF of  27p^4q   and  45p^4q= 9p^4q

GCF of  36p^3q^6   and  45p^4q= 9p^3q

GCF of  63p^3   and  45p^4q= 9p^3

GCF of  72p^3q^6   and  45p^4q= 9p^3q

Hence, the correct answer is:

  18p^3r

and  63p^3
18p^3r and 63p^3 are the answer

PLEASE HELP ME!!!! 50 points! Given the points C(-1, -3) and D(5, 6), find the coordinates of the point E on directed line segment CD that partitions CD into the ratio 2 to 1.

A. (1, 0)

B. (3, 3)

C. (-3, 3)

D. (2, 1.5)

Answers

Answer:

B. (3,3)

Step-by-step explanation:

In order to find the coordinates of point E that partitions the line segment CD into a ratio of 2:1, we can use the following formula for finding the coordinates of a point that divides a line segment in a given ratio:

For a line segment with endpoints A(x1, y1) and B(x2, y2), and a division ratio of m:n, the coordinates of the point E(x, y) that divides the line segment in this ratio are given by:

\sf x =( (m* x_2 + n* x_1) )/((m + n))

\sf y =( (m* y_2 + n* y_1) )/((m + n))

In this case, we want to divide the line segment CD into a ratio of 2:1, so m = 2 and n = 1.

Wehave the coordinates of C(-1, -3) and D(5, 6).

Using the formula:

\begin{aligned} x &\sf =( (2* 5 + 1* (-1)))/( (2 + 1)) \n\n &\sf = (10-1)/(3)\n\n &\sf = (9)/(3)\n\n &\sf = 3 \end{aligned}

and

\begin{aligned} y &\sf =( (2* 6 + 1* (-3)) )/( (2 + 1)) \n\n &\sf = (12-3)/(3) \n\n &\sf = (9)/(3)\n\n &\sf = 3 \end{aligned}

So, the coordinates of point E that partitions the line segment CD into a ratio of 2:1 are E(3, 3).

So, the answer is B. (3,3)

Answer:

b

Step-by-step explanation:

bc yes

determine the most precise name of the quadrilateral ABCD from the information given. for #13 & #14

Answers

Answer:14\n\nbecause\ in\ 13\ \overline{AE}=\overline{CA}\ and\ \overline{BE}=\overline{DE}\ is\ a\ rhombus.
Hello,
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Answer ⇒ 14
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A rectangular yard has area 96 square feet. If the width of the yard is 4 ft less than length, what is the perimeter,in feet, of the yard?

Answers

Area of the rectangular yard = 96 square feet
Let us assume the length of the yard = x feet
Width of the yard = x - 4 feet
Then
Area of the yard = length * width
96 = x(x - 4)
96 = x^2 - 4x
x^2 - 4x - 96 = 0
x^2 - 12x + 8x - 96 = 0
x(x - 12) +8(x - 12) = 0
(x - 12)(x + 8) = 0
As the value of length cannot be negative so
x - 12 = 0
x = 12
So
Length of the yard = 12 feet
Width of the yard = x - 4 feet
                             = 12 - 4 feet
                             = 8 feet
Then
Perimeter of the yard = 2 (length + width)
                                   = 2(12 + 8)
                                   = 2 * 20 feet
                                   = 40 feet.
So the perimeter of the yard  is 40 feet.

To find a baseball pitcher's earned average (ERA), you can use the formula Ei=9r where E represents ERA, i represents the number of innings pitched, and r represents the number of earned runs allowed. Solve the equation for E. What is the pitchers ERA if he allows 5 earned runs in 18 innings pitched

Answers

Ei = 9r......E = (9r)/ i
i = 18
r = 5

now we sub
E = (9 * 5) / 18
E = 45/18
E = 2.5......the pitchers ERA is 2.5
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