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3 years ago

In simplest form, what is 13/15 - 2/5

Mathematics

2 answers:

natima [27]3 years ago

8 0

Answer:

7/15

Step-by-step explanation:

turn 2/5 to have 15 as the denominator (6/15)

then do 13/15-6/15

answer is 7/15

Kazeer [188]3 years ago

3 0

Answer:It is 7/5

Step-by-step explanation:

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Four times a number is three times the difference of that number and one

andrey2020 [161]

Answer: the number is -3

Step-by-step explanation:

Four times a number is three times the difference of that number and one

Let the number be x. Four times the number means 4×x = 4x

three times the difference of that number and one. This means

Difference of the number and one is (x-1). Three times the difference of the number and one would be 3(x-)

Four times a number = three times the difference of that number and one. Therefore,

4x = 3(x-1)

Opening the bracket

4x = 3x -3

4x-3x = -3

x =-3

Check

4×-3 =3(-3-1)

-12 = -3×4

-12 = -12

So the number is -3

3 0

4 years ago

How do I write a decimal as a fraction or mixed number in simplest form

Mariulka [41]

In order to convert a mixed number into its simplest form you must first divide the denominator by the numerator then convert the answer back to fraction form.
in order to concert a decimal into a fraction you must first find out how many times the decimal goes into one hundred then with the rest of the number you repeat until you finally get you fraction.

6 0

4 years ago

What is a perpendicular line

Basile [38]

Answer:its is a line that intersects another line at 45 degree angle

ex. lines with the slope of 2/3 and -3/2 are perpendicular cause they intersect leaving a 45 degree angle

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

CHECK MY ANSWER ASAP

weqwewe [10]

Question 1: Equiangular

Question 2: Area of the parallelogram = 48 square centimeters

Question 3: Perimeter of the rectangle = 42 ft

Question 4: Area of the trapezoid = 154 square inches

Solution:

Question 1:

The given polygon is a rectangle.

The angles of each side of the polygon is 90°.

This means all angles are equal.

Hence Option A equiangular is the correct answer.

Question 2:

Area of the parallelogram = Base × Height]

= 6 cm × 8 cm

Area of the parallelogram = 48 square centimeters

Question 3:

Perimeter of the rectangle = 2(length + width)

= 2( 15 ft + 6 ft)

= 2(21 ft)

Perimeter of the rectangle = 42 ft

Question 4:

Area of the trapezoid = $\frac{1}{2}\times \text{sum of the parallel sides}\times \text{height}$

$$=\frac{1}{2}\times (14+ 8)\times 14$

$$=\frac{1}{2}\times 22\times 14$

Area of the trapezoid = 154 square inches

8 0

4 years ago

If BC = 6.5, CD = 7.8, and AD = 12.2, find AB to the nearest tenth.

Sladkaya [172]

This can be solved using the angle bisector theorem. Note that line segment AD is the angle bisector of triangle DAB from angle DAB. Therefore, we know that the ratios $\frac{\text{AD}}{\text{CD}}$ and $\frac{\text{AB}}{\text{CB}}$ are equal. Solving, we get $\frac{\text{12.2}}{\text{7.8}}=\frac{\text{AB}}{\text{6.5}}$ . Cross multiplying, we get $79.3 = 7.8x$ , and solving this equation we get $x = 10.1666... \approx 10.2$ . 10.2 is your answer.

6 0

4 years ago

In simplest form, what is 13/15 - 2/5​

In simplest form, what is 13/15 - 2/5