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3 years ago

Sammi believes that 0.3 repeating is a rational number. Is Sammi correct?

Mathematics

1 answer:

Ket [755]3 years ago

7 0

Answer: Yes, Sammi is correct because although it is repeating, it is expressible as a ratio of 2 integers.

I hope this helps!

Step-by-step explanation:

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One counting number is 4 times great as a counting number.The product of the two number is 36.What is the sum of the two number

VARVARA [1.3K]

Answer:

The sum of the two numbers is 15

Step-by-step explanation:

Let the counting numbers be x and y.

Then we can write the following equations

x=4y.......1 (one is four times greater )

x(y)=36.....2 (the product of the two)

Putting equation 1 into equation 2, we get

4y(y)=36

${4y}^{2} = 36$

Dividing through by 4,we get

${y}^{2} = \frac{36}{4}$

${y}^{2} = 9$

Taking square root of both side, we obtain

y=3

Putting the value of y into equation , we get

x=4(3)=12

Hence the numbers are 3 and 12

Therefore the sum of the two numbers is 3+12=15

3 0

3 years ago

M∠a=(48−x)°m∠b=(9x−38)°m∠c=90°

Fudgin [204]

Answer:

Option C:

m∠a = 38°
m∠b = 52°

m∠c = 90°

Step-by-step explanation:

Hello!

The sum of all angles in a triangle is 180°.

Add up all the angles and solve for x by setting the equation to 180°.

<h3>Solve for x</h3>

∠a + ∠b + ∠c = 180°
(48 - x)° + (9x - 38)° + 90° = 180°
10° + 8x + 90° = 180°
8x = 180° - 90° - 10°
8x = 80°
x = 10°

Now that we solved for x, we can plug it back into each equation to solve for each angle.

<h3>Angle A</h3>

48° - x
48° - 10°
38°

<h3>Angle B</h3>

9x - 38°
9(10°) - 38°
90° - 38°
52°

<h3>Angle C</h3>

90°

The answer is Option C:

m∠a = 38°
m∠b = 52°

m∠c = 90°

4 0

2 years ago

Matt Kaminsky bought a Volvo that is 33∕4 times as expensive as the car his parents bought. If his parents paid $8,000 for their

Mashutka [201]

33/4 is the same as 8 1/4

so that means that matt bought the Volvo for 8 1/4 times as much as the car his parents bought.

therefore... 8,000 times 8.25 = 66,000

8 0

3 years ago

Read 2 more answers

HeLp

antoniya [11.8K]

33.2 blah blah blah 20 character 33.2

6 0

2 years ago

Lets see who is smart lol

Simora [160]

9514 1404 393

Answer:

$\square\quad{y=\dfrac{1}{2}x+4}\\\\\square\quad{\dfrac{y-5}{x-2}=\dfrac{1}{2}}$

Step-by-step explanation:

The slope of a line is the same everywhere, so an equation can be written making use of that fact.

$\dfrac{y-y_1}{x-x_1}=\dfrac{y_2-y_1}{x_2-x_1}\\\\\dfrac{y-5}{x-2}=\dfrac{7-5}{6-2}=\dfrac{2}{4}\\\\\boxed{\dfrac{y-5}{x-2}=\dfrac{1}{2}}$

Cross-multiplying gives ...

2(y -5) = x -2

2y -10 = x -2 . . . eliminate parentheses

2y = x +8 . . . . . . . add 10; next, divide by 2

$\boxed{y=\dfrac{1}{2}x+4}$

These equations match choices B and D.

6 0

3 years ago