MATHEMATICS MIDDLE SCHOOL

Which ratio is equivalent to 150:63?

21:50
50:7
75:21
50:21

Answers

Answer 1
Answer:

Answer:

50:21

Step-by-step explanation:

150:63

Divide both by 3:

150/3 = 50

63/3 = 21

so 50:21 is the correct answer (last option)

(Note that the first option is WRONG bc it's reversing the order.)

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The combined area of the 3 windowpanes and frame shown below is 924 in.2. The frame is of uniform width. What is the side length, x, of each square windowpane? The image is of two rectangles one inside the other. Inner rectangle is divided into three squares each having length x . The space between the two rectangles is 6 inch both in length and width. A. 10 in. B. 20 in. C. 15 in. D. 25 in.

Answers

Answer:

Option A. x=10\ in

Step-by-step explanation:

we know that

The combined area of the 3 windowpanes and frame is equal to

(3x+12)(x+12)=924\n \n3x^(2)+36x+ 12x+144=924\n \n 3x^(2)+48x-780=0

using a graphing tool to solve the quadratic equation

The solution is x=10\ in

see the attached figure

Plz help me do 19-33 like really fast please!!!

Answers

19) x>4
20) k<7
21) y>1
 22)x>13
23)n>8
24)x>44
25)b<14
26) s<3.5
27)m<1/4
28)x<2
29)n>7
30)x<5/3
31)b<3
32)p>2/5
33)k<3/11

-2x2+x+8=0 use the quadratic formula to solve the equation

Answers

x = -1 is the answer to -2x2+x+8=0

The pre-image point B(-4, 3) is translated to B'(-1, 1). What was the translation used?A. ( x + 3, y + 2)
B. ( x - 3, y - 2)
C. ( x + 3, y - 2)
D. ( x - 3, y + 2)

Answers

the answer is C. youre welcome

Answer:

C. ( x +3, y -2)

Please help me with number 16

Answers

fraction: 12/15
percent: 80%
decimal: 0.8
12/15
                                                             would be the fraton                                                                                          

Isabella spent $49 for 7 bracelets. Each bracelet cost the same amount. How much did each bracelet cost?

Answers

To answer this question, we first have to set up an equation with variables.
We can use "x" to represent the cost of each bracelet.

Equation: number of bracelets bought × cost of each bracelet = total cost

Number of bracelets bought: 7
Total Cost: 49

Using this information, we can fill in the equation and solve for x.

7x = 49

To isolate x, divide both sides by 7.

x = 7

Since x equals 7, we now know that each bracelet cost $7.
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