3 years ago

PLZ HELP! Need this ASAP! Thx so much :)

Mathematics

1 answer:

Tamiku [17]3 years ago

5 0

Multiply 8,200 and 0.80 and then subtract 8200 and the value you get

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3/22 + -1/11 Add this fraction

Mashcka [7]

You need to use a common denominator. The least common denominator of 11 and 22 is 22.

3/22 + -1/11 = 3/22 + -2/22 = 3/22 - 2/22 = 1/22

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3 years ago

Solve x2 + 1/2x +1/16=4/9

kolezko [41]

Answer:

x = 0.417 or x = -0.917

Step-by-step explanation:

We are given the following expression and we are to solve it for the variable x:

$x ^2 + \frac { 1 } { 2 } x + \frac { 1 } { 1 6 } = \frac { 4 } { 9 }$

We will find the least common multiple of 2. 6 and 9:

$x^2 \times 144 +\frac{1}{2}x \times 144 +\frac{1}{16} \times 144 = \frac{4}{9} \times 144$

Simplifying it to get:

$144x^2+72x+9=64$

$144x^2+72x+9-64=0$

$144x^2+72x-55=0$

Using the quadratic formula to solve for x:

$x=\frac{-b \pm\sqrt{b^2-4ac} }{2a}$

$x=\frac{-72 \pm\sqrt{72^2-4(144)(-55)} }{2a}$

$x=\frac{5}{12}$ or $0.417$

$x=-\frac{11}{12}$ or $-0.917$

3 0

3 years ago

Sam has 30 coins, all nickels and dimes. Together they are worth $2.40 how many nickels and dimes does he have

Aliun [14]

Answer:

20 dimes and 8 nickels

Step-by-step explanation:

20 dimes = 10 x 20 = $2.00 and 8 nickels = 40 cents.

total is 2.40

4 0

3 years ago

How does the number of zeros in the product of 8 and 5000 compare to the number of zeroes in the factor

almond37 [142]

The number of zeros in the product has 5 zeros and the zeros in the factor has 4 zeros because when you multiply 5,00x by8 you get 40,000

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3 years ago

At the local pizzeria, 35% of the people who ordered pizza ordered a sausage pizza. If 28 people ordered sausage on their pizza,

sergij07 [2.7K]

Answer:

46 people

Step-by-step explanation:

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2 years ago