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3 years ago

What is 3/4 ×4= what plz help plzzzzzzz

Mathematics

2 answers:

DedPeter [7]3 years ago

7 0

Answer:

The answer would be 3

Step-by-step explanation:

To solve, change 4 into 4/1, and first multiply the numerators 3 and 4 to get 12. Next, multiply the denominators 4 and 1 to get 4. Finally, simplify the fraction 12/4 into 3.

Hope this helps!

LenaWriter [7]3 years ago

6 0

Answer:

Step-by-step explanation:

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13x=-21-6y and -8x=36+6y

IgorLugansk [536]

Answer:

$x=3\\y=-10$

Step-by-step explanation:

$13x=-21-6y\\-8x=36+6y$

Let's take one of the equations and solve for x. I'll take the first one.

$13x=-21-6y$

Divide by 13.

$x=\frac{-21-6y}{13}$

Now replace x in the second equation.

$-8x=36+6y\\-8(\frac{-21-6y}{13} )=36+6y$

Distribute -8

$\frac{168+48y}{13}=36+6y$

Break down the fraction.

$\frac{168}{13}+\frac{48}{13}y=36+6y$

Subtract $\frac{168}{13}$

$\frac{48}{13}y=36+6y-\frac{168}{13}$

Subtract 6y

$\frac{48}{13}y-6y=36-\frac{168}{13}$

Combine like terms;

$\frac{48-13*6}{13}y=\frac{36*13-168}{13}$

Solve;

$\frac{48-78}{13}y=\frac{468-168}{13}$

Keep solving;

$\frac{-30}{13}y=\frac{300}{13}$

Multiply by the negative reciprocal of the fraction next to y.

$(-\frac{13}{30} )\frac{-30}{13}y=\frac{300}{13}(-\frac{13}{30} )$

On the right side; 13 and 13 become 1. 300/30 = 30/3 = 10

$y=-10$

After having found y, replace it in any of the equations to find x.

$13x=-21-6y\\13x=-21-6(-10)\\13x=-21+60\\13x=39\\x=\frac{39}{13}\\ x=3$

6 0

3 years ago

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How would you find the volume of the solid in the figure shown above?

Natasha_Volkova [10]

The answer is D and it's pretty simple to do:

$V_{1}=a*b*c\\
V_{2}= \pi r^{2} h\\
V_{3}= \frac{1}{3} \pi r^{2}h$

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3 years ago

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What is the solution set for this inequality? -8x + 40>-16

dolphi86 [110]

Answer:

x<7

Step-by-step explanation:

hope this helps :)

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3 years ago

Find(f−g)(x) f(x)=x2−6xandg(x)=−2x+3 A x2−4x+3 B x2+4x−3 C x2−4x−3 D x2+4x+3

3241004551 [841]

Answer:

option C is the answer......

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3 years ago

How many fifths are the in 60/100

tankabanditka [31]

In order to calculate that, we need to divide it by 1/5 as follows:
60/100 / 1/5

We can re-write it as: 60/100 * 5 = 6/10 * 5 = 30/10 = 3

So, there are "3" 1/5ths in 60/100

Hope this helps!

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3 years ago