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4 years ago

WILL GIVE BRAINLIEST!!!!!! LOOK BELOW

Mathematics

2 answers:

LenKa [72]4 years ago

4 0

First one is Equal
Second is Not Equal

sweet-ann [11.9K]4 years ago

4 0

Hello!

Like I said earlier, multiplication are equal when flipped, a × b = b × a

However, division is not, a ÷ b ≠ b ÷ a.

Therefore,

First question is equal,
second is not equal.

You might be interested in

How do u do 5 pounds 4 ounces for $26.88 what’s the cost per ounce

ExtremeBDS [4]

First you have to turn pounds into ounces and its 16 oz for 1 pound.

Now you need to multiply 16 by 5.
16×5=80

Now you add the 4 oz to the 80 oz.
80+4=84

Now you need to divide $26.88 by the 84 oz.
26.88÷84=0.32

Then you finally get $0.32 per 1 oz.

I really hope that helped : )

7 0

3 years ago

What is the sum? StartFraction 3 y Over y squared + 7 y + 10 EndFraction + StartFraction 2 Over y + 2 EndFraction

katovenus [111]

Answer:

$\dfrac{5}{y+5}$

Step-by-step explanation:

Here, we have to find the sum of 2 fractions:

1st fraction: $\dfrac{3y}{y^{2}+7y+10}$

2nd fraction: $\dfrac{2}{y+2}$

Considering the denominator of 1st fraction:

$y^{2}+7y+10$

Using factorization method:

$7y$ can be written as $(2y + 5y)$ .

$\Rightarrow y^{2}+2y+5y+10$

Taking 5 common from $5y+10$ and y common from $y^{2}+2y$ : $\Rightarrow y(y+2)+5(y+2)$

Now taking $(y+2)$ common:

$\Rightarrow (y+5)(y+2)$

$\dfrac{3y}{y^{2}+7y+10}$ can be written as $\dfrac{3y}{(y+5)(y+2)}$

Now, calculating the sum:

$\dfrac{2y}{(y+5)(y+2)} + \dfrac{2}{y+2}$

Taking LCM and solving:

$\Rightarrow \dfrac{3y+2(y+5)}{(y+5)(y+2)}\\\Rightarrow \dfrac{5y+10}{(y+5)(y+2)}\\\Rightarrow \dfrac{5(y+2)}{(y+5)(y+2)}\\\Rightarrow \dfrac{5}{(y+5)}$

Hence, answer is $\dfrac{5}{y+5}$ .

4 0

3 years ago

The book fair sold 60% of the books

natka813 [3]

Answer:

120 Books

Step-by-step explanation:

60% of 120 is 72

6 0

3 years ago

What is the cost of 5 pounds of bananas if 2 pounds cost $1.16

serious [3.7K]

The answer is $2.90

Hope that helps

7 0

4 years ago

Read 2 more answers

Y = 25x + 32 y = 5x² + 25x - 13 how do i find the two pairs of coordinates

Roman55 [17]

Answer:

(-3,-43) and (3,107)

Step-by-step explanation:

input 25x+32 for y

25x+32=5x²+25x-13

32=5x²-13

-5x²=-45

x²=9

x=+-3

which means you separate the solution

x= -3

x= 3

then input the answers you got for x, in both equations. Then you'll get your y.

y=25(-3)+32

-43

Then check your answer.

Then input the other answer you got for x.

I may be wrong, but I tried and checked my answers.

4 0

4 years ago