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Vadim26 [7]
3 years ago
7

how can the number 39 be divided into two parts in order that the sum of 2 upon 3 of one part and 3 upon 4 of the other part is

28
Mathematics
1 answer:
vfiekz [6]3 years ago
3 0

Answer:

The two numbers are 15 and 24

Step-by-step explanation:

Let us assume the two parts be x and y

So according to the question

x + y = 39

(2 ÷ 3) x + (3 ÷ 4)y = 28

or

8x + 9y = 28 × 12

8x + 9 × (39 - x) = 336

-x = 336 - 351

x = 15

And, y = 39 - 15

= 24

Hence, the x and y is 15 and 24 respectively

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X y
Strike441 [17]

Answer:

1

Step-by-step explanation:

3-1=2

2-1=1

1-1=0

From this we can see that the constant rate of change is 1.

Hope it helps <3

6 0
3 years ago
David has a circular rug with a diameter of 14 feet. How much floor will the rug cover?
Mazyrski [523]
The answer to your question is c the rug will cover 14 feet of the floor
7 0
3 years ago
1. Find the area of the shaded area of this figure:
statuscvo [17]
(area of square) - (area of triangle)

We know the are of a square is equal to s^2, where s is the side length.

While the are of a right angle tringle is 1/2*base*height

Then we have,

s = 10
base = 4
height = 4

(area of square) - (area of triangle)

=> (10^2) - (1/2)(4)(4)
=> 100 - 8
=> 92

Finally we get: 92 in^2
8 0
2 years ago
Which of the following is an equations of the line passing through the points (-1,4) and (1,2)
maxonik [38]

Answer:

y = -1x + 3 or y = -x + 3 (**That is the last option which is D**)

Step-by-step explanation:

You need to do slope-intercept formula and the slope formula.

The Slope-Intercept Formula: y=mx+b

The Slope Formula: y2 - y1 / x2-x1

Your coordinates:

(-1,4) and (1,2)

2 - 4/1- (-1)

-2/2

Simplified is -1

Your "m" in the slope-intercept formula is -1

Formula: y=-1x + b

Now, you need to find the Y-Intercept which is the "b"

Using our slope-intercept formula, you need to plug in "x1" and "y1"

4 = -1(-1) + b

4 = 1 +b

4-1 = b

3 = b

So your equation is:

y = -1x + 3 or y = -x + 3

6 0
2 years ago
Can help me complete this problem please :,c
GalinKa [24]

Answer:

= 30.144 km²

Step-by-step explanation:

Area of a sector is given by the formula;

θ/360 × πr², where θ is the angle subtended by the arc to the center of the circle, and r is the radius.

Area = 54/360 × 3.14 × 8 × 8

            = 30.144 km²

6 0
4 years ago
Read 2 more answers
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