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3 years ago

Help ASAP!!! Read the question and answer please!!! First answer and correct answer gets the brain-

Mathematics

1 answer:

Oksi-84 [34.3K]3 years ago

7 0

Answer:

First blank is 15.

Second blank is 60.

Third blank is 8.

$15x-60=8$

Step-by-step explanation:

To clear the fractions, multiply both side by the least common multiple (or a common multiple) of the denominators you see.

The least common multiply of 4 and 5 is 4(5)=20.

So multiply both sides by 20:

$20(\frac{3}{4}x-3)=20(\frac{2}{5})$

$\frac{3(20)}{4}x-3(20)=\frac{2(20)}{5}$

Simplify:

$3(5)x-60=2(4)$

$15x-60=8$

First blank is 15.

Second blank is 60.

Third blank is 8.

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! + 3 − 5 = 0; by completing the square

mylen [45]

Answer:

x = 1.19258 and x = −4.19258

Step-by-step explanation:

The given equation is :

$x^2+3x-5=0$

Keep x terms on the left and move the constant to the right side by adding it on both sides.

$x^2+3x=5$

Take half of the x term and square it.

$(3\times \dfrac{1}{2})^2=\dfrac{9}{4}$

then add the result to both sides

$x^2+3x+\dfrac{9}{4}=5+\dfrac{9}{4}\\\\(x+\dfrac{3}{2})^2=\dfrac{29}{4}\\\\(x+\dfrac{3}{2})=\sqrt{\dfrac{29}{4}}\\\\x=\dfrac{-3}{2}+\sqrt{\dfrac{29}{4}}\\\\x=\dfrac{-3}{2}-\sqrt{\dfrac{29}{4}}$

So,

x = 1.19258 and x = −4.19258

Hence, this is the required solution.

6 0

3 years ago

HAPPY NEW YEAR plz five me the right answer.

Paladinen [302]

Answer:

It's the second one.

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

How to eliminate this using multiplication?

Greeley [361]

-2a + 3b = 9 / x 2;

-4a + 6b = 18;

Then, -4a + 6b = 18
+4a - 2b = 3
__________________(+)

We obtain 4b = 21;

b = 21/4;

-2a + 63/4 = 9;

-8a + 63 = 36;

-8a = - 27;

a = 27/8 ;

5 0

3 years ago

If you roll a 6-sided die 54 times, what is the best prediction possible for the number of times you will roll an even number?

Harman [31]

Answer:

50% of the time (27 times) you will get an even number

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3 years ago

Dawid had 6 pizzas at his party. his friends ate 3 pizzas. which doubles fact could you use to find how many pizzas are left

torisob [31]

the fact 2 x 3= 6

therefor double 3 and u get 6

8 0

3 years ago