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3 years ago

.What is answer pls help me with this very important question. 9 + 10 (78) =

Mathematics

2 answers:

Korolek [52]3 years ago

6 0

Answer:

789

Step-by-step explanation:

9+10(78)

9+10*78

9+780

789

Alik [6]3 years ago

5 0

What you would do is you would do is you would multiply 10 and 78 together. An easy way I found of doing this is by taking the zero off the ten and moving it to the 78. This works for all numbers like 10 100 10000 and so on. Now just add nine to the 780 and there’s your answer

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2 years ago

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2 years ago

Find the derivative of the function. y = sin−1(6x + 1)

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3 years ago

i need help. Semir, Sarah, and SungSo decided to raise money for a local homeless shelter by working in a local deli. The deli a

IgorLugansk [536]

According to the question,
Let,
"n" represent the number of miles semir walked.
"y" represent the number of miles sarah walked.
Now, according to the question,

y = 2n - 5 ........................this is your equation
Also,
the question states, each of them collect $18 in pledges for every miles walked.

Given,
Sarah collected $450
Now,

Using unitary method,

Sarah collects $18 for 1 mile
Sarah collects $1 for (1 / $18) mile
Sarah collects $450 for (1 / 18) * 450 mile
= 25 miles
So, Sarah walks 25 miles.
Now,
Taking equation,
y = 2n - 5
Since, y is the no. of miles sarah walked, we can write 25 in place of "y" So,
(25) = 2n - 5
25 + 5 = 2n
30 = 2n
30 / 2 = n
15 = n

Since, "n" is the no. of miles that semir walked, Semir walked 15 miles.

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3 years ago