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charle [14.2K]
4 years ago
6

Solve the proportional equation below. 9/r = 3 / 10

Mathematics
1 answer:
Bond [772]4 years ago
6 0
9/r= 3/10

Cross multiply:
3*r= 9*10
⇒ r= 9*10/3
⇒ r= 30

The final answer is 30~
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The diagonals of parallelogram WXYZ intersect at P. Which statement must be true? Select all that apply.
marysya [2.9K]

Answer:

Options (A), (B) and (C)

Step-by-step explanation:

Properties of a parallelogram,

1). Opposite sides are equal and parallel.

2). Opposite angles are equal.

3). Adjacent pair of angles is supplementary.

4). Diagonals bisect each other.

By property number (4),

WP ≅ YP

BY property number (1),

XY ≅ WZ

By property number (1),

XY║WZ and WY is a transversal line,

∠YWZ = ∠WYX [Alternate interior angles]

Options (A), (B) and (C) are the correct options.

6 0
3 years ago
250 is equal to the ratio ____ to 100​
Ksivusya [100]

Answer:

25

Step-by-step explanation:

if you look at it, 250 is 1/4 of 1000 and 100 is 1/10 of 1000 so divide 250 by 10 and you get your answer.

8 0
3 years ago
If your tax status is now "married-filing jointly", what is your tax liability? Explain how you calculated
grigory [225]

Answer:

90

Step-by-step explanation:

3 0
3 years ago
An art teacher has 70 1/5 pounds of clay and 20 students. Each student will get an equal amount of clay. How much clay does each
Andrews [41]

I think the answer would be 2 41/50

4 0
3 years ago
If angle 1= 105°, angle 12= (3x + 15)°, and angle 7 = (8y-5)°, determine the values<br> of x and y.
Darina [25.2K]

The value of the variable x is 30° and the value of the variable y is 10°.

The missing diagram is attached below.

<h3>What is an angle?</h3>

The angle is the distance between the intersecting lines or surfaces.

Corresponding angle – If two lines are parallel, then the third line. The corresponding angles are equal angles.

Vertically opposite angle – When two lines intersect, then their opposite angles are equal.

Linear angle – If the total of two angles is 180 degrees, they are said to be linear angles.

∠1 = ∠5 = ∠9 = 105° (corresponding angles)

∠1 = ∠4 = 105° (Vertical opposite angles)

∠1 + ∠2 = 180° (linear angle)

       ∠2 = 75°

∠2 = ∠3 = 75° (Vertical opposite angles)

∠3 = ∠8 = ∠12 = 75° (corresponding angles)

If angle ∠1 = 105°, angle ∠12 = (3x + 15)°, and angle ∠7 = (8y-5)°.

Then the value of x and y will be

   ∠9 = ∠12

   ∠1 = ∠12

105° = (3x + 15)°

  3x = 90°

    x = 30°

∠6 = ∠7

75° = (8y – 5)°

8y = 80°

  y = 10°

More about the angled link is given below.

brainly.com/question/15767203

#SPJ1

7 0
2 years ago
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