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3 years ago

2×3+4-5 please help

Mathematics

2 answers:

Andru [333]3 years ago

8 0

Step-by-step explanation:

PEMDAS

parentheses, exponents, multiplication, division, addition, subtraction.

first multiply:

2×3=6

6+4-5

Now add

6+4=10

Now subtract

10-5=5

5 is the answer

I hope this helped! :)

Advocard [28]3 years ago

4 0

SOLVING STEPS...

FIRST CALCULATE 2 × 3

SO IT'S 6

NOW THE FORM IS

$6 + 4 - 5$

CALCULATE THE SUM OF DIFFERENCE

SO THE ANSWER IS

$5$

GAVE ME THE BRAINLIEST IF MY ANSWER WAS HELPFUL...

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If it takes 6 hours for a plane to travel 720km with a tail wind and 8 hours to make the return trip with a head wind. Find the

denis-greek [22]

The speed of wind and plane are 105 kmph and 15 kmph respectively.

Solution:

Given, it takes 6 hours for a plane to travel 720 km with a tail wind and 8 hours to make the return trip with a head wind.

We have to find the air speed of the plane and speed of the wind.

Now, let the speed wind be "a" and speed of aeroplane be "b"

And, we know that, distance = speed x time.

$\text { Now, at tail wind } \rightarrow 720=(a+b) \times 6 \rightarrow a+b=\frac{720}{6} \rightarrow a+b=120 \rightarrow(1)$

Now at head wind → $720=(a-b) \times 8 \rightarrow a-b=\frac{720}{8} \rightarrow a-b=90 \rightarrow(2)$

So, solve (1) and (2) by addition

2a = 210

a = 105

substitute a value in (1) ⇒ 105 + b = 120

⇒ b = 120 – 105 ⇒ b = 15.

Here, relative speed of plane during tail wind is 120 kmph and during head wind is 90 kmph.

Hence, speed of wind and plane are 105 kmph and 15 kmph respectively.

6 0

3 years ago

The graph above shows the distance Mr. Johnson drives over time.

loris [4]

After 1 hour he has driven 40 miles

6 0

2 years ago

What’s this question

yKpoI14uk [10]

<h3>Hm ok, so the correct answer here would be (0,3) and heres why:</h3>

If the y would be equal to 0, everything would then just depend if you add or subtract the x:

$y-x=-3\\\\y+x=3\\\\y= 0\\x=3\\\\then:\\\\0-3=3\\and\\0+3=3$

Now the first answer could be correct for:

$y-x=-3\\because\ if\\\\y=-3 \ and \ x=0 \ then\\-3-0=-3$

However, this answer is not correct for the other equation. the same true for all the other answers except (0,3)

<h3>Now if you like this answer and want to see more, please punch that Like button, Comment, and Rate this answer! Also, make sure to send me a friend request. I'm always up for a challenge!</h3><h2>Thanks!</h2>

ps. could you please mark me Brainlyest if you can? I kinda need it to help maintain and reach my next rank... thx

8 0

3 years ago

1/2y-3/5=4/5 what is this?

user100 [1]

Answer:

1 2⋅−1⋅3 5=4 5

Step-by-step explanation:

Combine multiplied terms into a single fraction

12y−1⋅35=45

\frac{1}{2}y-1 \cdot \frac{3}{5}=\frac{4}{5}

21y−1⋅53=54

12−1⋅35=45

6 0

3 years ago

Can someone help me on number 4??

Anika [276]

37.5% = 3/8 as a fraction.
So 180 x 8/3 would get you your answer.
Solution: 480

6 0

3 years ago

2×3+4-5 please help ​

2×3+4-5 please help