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patriot [66]
3 years ago
7

Value of 50 ÷ (4 + 6) • 4 ??

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
4 0

Answer:

20

Step-by-step explanation:

PEMDAS

Parentheses: (4+6)= 10

Division: 50/10=5

Multiplication: 5*4=20

9966 [12]3 years ago
3 0
50 divided by (10) x 4 = 20
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Pls give answer with formulas and steps 4/9 ÷ -5/7
katrin [286]

9514 1404 393

Answer:

  -28/45

Step-by-step explanation:

<u>Step 1, the sign</u>

When the fractions have an odd number of minus signs (1, not 0 or 2), the result will be negative. This knowledge lets you ignore the sign while you do the rest of the arithmetic. The appropriate sign is applied to the final numbers.

<u>Step 2, the formula</u>

The ratio (a/b)÷(c/d) is (ad)/(bc). There are several ways you can get there:

⇒ "invert and multiply" or "swap dot"

  \dfrac{a}{b}\div\dfrac{c}{d}=\dfrac{a}{b}\,\cdot\,\dfrac{d}{c}=\dfrac{ad}{bc} \quad\text{division is multiplication by the reciprocal}

⇒ "numerators of a common denominator"

  \dfrac{\left(\dfrac{a}{b}\right)}{\left(\dfrac{c}{d}\right)}=\dfrac{\left(\dfrac{ad}{bd}\right)}{\left(\dfrac{bc}{bd}\right)}=\dfrac{ad}{bc}

⇒ "swapped denominators of a common numerator"

  \dfrac{\left(\dfrac{a}{b}\right)}{\left(\dfrac{c}{d}\right)}=\dfrac{\left(\dfrac{ac}{bc}\right)}{\left(\dfrac{ac}{ad}\right)}=\dfrac{ad}{bc}

The use of common numerators or common denominators is most often seen when the numerator or denominator of one fraction is a multiple of that in the other fraction. <em>Example</em>: (2/3)÷(1/6) = (4/6)÷(1/6) = 4/1 = 4

<u>Step 3, reduce the result</u>

Any of these fractions is reduced by cancelling common factors from numerator and denominator. Your fractions here don't have any common factors, so there is nothing to cancel.

_____

Your product is ...

  (4/9) ÷ (-5/7) = -(4·7)/(9·5) = -28/45

6 0
3 years ago
Write an exponential function whose graph contains the points (1, 6) and (0, 2).
12345 [234]

Answer:

y = 2 (3)^{x}

Step-by-step explanation:

The exponential function is of the form

y = a (b)^{x}

To find a and b substitute the given points into the equation

Using (0, 2), then

2 = a (b)^{0} ⇒ a = 2

Using (1, 6), then

6 = 2 (b)^{1} ⇒ b = 3

Equation is y = 2 (3)^{x}

6 0
3 years ago
Find the value of each variable. Assume it is a 45 45 90 triangle. Round to the nearest tenth.
Arte-miy333 [17]

Answer:

x = 6

y = 45 degrees

Step-by-step explanation:

Here, we want to get the measure of x and y

For a 45-45-90 triangle, the measure of each of the internal angle asides the right angle is 45 degrees

This mean y is 45

To get x, we know we have an isosceles triangle

So the length of the third ungiven leg is x too

Mathematically, the square of the hypotenuse (side facing the right angle) is equal the sum of the squares of the two other sides

(6 √2)^2 = x^2 + x^2

72 = 2x^2

x^2 = 72/2

x^2 = 36

x = √36

x = 6

4 0
3 years ago
What number is one hundred thousand more than 75,000?
Gwar [14]
The answer is 175,000
6 0
3 years ago
Which expression represents the phrase: 8 less than the product of 6 and a number, x?A. 8 − 6xB. 6x − 8C. (6 + x) − 8D. 8 − (6 +
olganol [36]

Answer:

69 over 420

Step-by-step explanation:

trust me

4 0
3 years ago
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