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Contact [7]
3 years ago
10

The students at a school a assembly were divided into 4 equal groups there were 63 students in each group write and solve an equ

ation to determine the number of students that were at the assembly
Mathematics
2 answers:
MissTica3 years ago
4 0

Answer:

4 x 63 = 252

Step-by-step explanation:

There's 4 groups of 63 students.

Volgvan3 years ago
4 0

Answer:

4(63)= 252

Step-by-step explanation:

Groups ( students per group )= total students

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WILL MARK BRAINLIEST!!! A contractor has 34 meters of fencing that he is going to use as the perimeter of a rectangular garden.
snow_tiger [21]

Given

Shape of garden: Rectangle

Perimeter: 34 meters

Area: 72 square meters

Length of one side = x

Required

Find the dimension of the rectangle

Let the length of the other side of the rectangle be represented with y.

We start by writing out the perimeter of a rectangle

Perimeter, P = 2(L + B)

Where P is the perimeter; L and B are the length and width of the sides of the rectangle.

In this case L and B are represented by x and y

So,

P = 2(x + y)

By substituting 34 for P

34 = 2(x + y)

Multiply both sides by ½

½ * 34 = ½ * 2(x + y)

17 = x + y

Make y the subject of formula

y = 17 - x

Recall that the sides of the rectangle are represented by x and y.

Hence, the area of the rectangle is as follows.

Area = x * y

Substitute 72 for Area and 17 - x for y

72 = x(17 - x) --- Open bracket

72 = 17x - x² ---- Reorder

x² - 17x + 72 = 0

Now, we have a quadratic equation

Solving by factorisation

x² - 8x - 9x + 72 = 0

x(x - 8) - 9(x - 8) = 0

(x - 8)(x - 9) = 0

x - 8 = 0 or x - 9 = 0

x = 8 or x = 9

Recall that

y = 17 - x.

When x = 8

y = 17 - 8

y = 9

When x = 9

y = 17 - 9

y = 8

Writing out the result, we have

x = 8 , y = 9

Or

x = 9, y = 8

Hence, the dimension of the rectangle is 8 metres by 9 metres

7 0
3 years ago
Solve for x: 5x + 15 = 75
yuradex [85]

Answer:

x = 12

Step-by-step explanation:

5x + 15 = 75

      -15   -15

5x = 60

x = 12

3 0
2 years ago
Please solve this Screenshot/attachment that is included below, thanks!
amm1812

Answer:

1) A=5  

Step-by-step explanation:

1) W should be greater than 1, so the only option that satisfies this is A which is 5.  

(For the number line please look at the attachment)

I'm sorry, I don't know how to solve the second problem. I hope the first question helps. Sorry and Hope its clear.

6 0
2 years ago
Shape that s not trapezoid
neonofarm [45]

Answer:hexagon square

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
4/r ​ = 5/7 need help please
Annette [7]
The answer to the question is

5r= 28

r= 28/5
7 0
3 years ago
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