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Snezhnost [94]
2 years ago
9

Your teacher announced a 50-point math quiz for tomorrow. The quiz will have 15 questions with word problems worth 4 points each

and some open response questions worth 3 points each. Find the number of each type of question. You may use any of the methods to solve. Check your answer.
Mathematics
1 answer:
koban [17]2 years ago
3 0

Answer:

5  word problems(4points each)      &      10 open (3 points each)

Step-by-step explanation:

O= open response

W= word problems

  W+O =15

4W + 3O = 50

multiply the first by -3 to eliminate O

-3W -3O = -45

4W  + 3O = 50

  AD BOTH

W = 5    ( 5 questions word problems)

O= 10   ( 10 questions open response)

  5x4 = 20

10x3 = 30

      20 + 30 = 50 points

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How many flowers, spaced every 6 inches, are needed to surround a circular garden with a 10 foot radius?
Stolb23 [73]

To solve this problem you must apply the proccedure shown below:

1. You must calculate the perimeter of the circle:

The radius of the circle in inches is:

radius=\frac{(10ft)(12in)}{1ft}=120in

P=2\pi(radius)\\  P=2\pi(120in)\\ P=753.98in

2. Now, you must divide the perimeter by the space between each flower to find the number of flowers needed, which you can call x:

x=\frac{753.98in}{6in}=125.6=126

The answer is: 126 flowers.

5 0
2 years ago
Use a transformation to solve the equation. w/4 = 8 can you also leave a detailed explanation on how this equation = 32
OverLord2011 [107]

Answer:

w=32

Step-by-step explanation:

w/4 = 8

4/1 * w/4 = 8*4

w=32

5 0
3 years ago
Can somebody help me please.
Fiesta28 [93]
I’m pretty sure it is 57?
7 0
2 years ago
Am i doing this right????
Anna35 [415]
You are going in the right direction. For the distance of ST I get √136
√(-5-1)² + (6+4)² =
√(-6)² + (10²) =
√ 36 + 100 =
√136

√34² + √136² =√170²
34 + 136 = 170
170 = 170
3 0
2 years ago
I need help i will give brainliest pls and also thanks
Andru [333]

Answer:

1

Step-by-step explanation:

10x -6 = 3x - 1

7x - 6 = -1

7x = 5

x = 0.71428571428 or 5/7

5 0
3 years ago
Read 2 more answers
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