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denis23 [38]
3 years ago
10

How to solve this problem for my pre calculous class.

Mathematics
1 answer:
Vilka [71]3 years ago
4 0
Take the cos-1 of both sides to get 3x=30 then divide by 3 to get ×=10

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A roller coaster travels 3/4 of a mile in 40 seconds .what is the average speed in miles per hour​
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0.01875 miles per hour

Step-by-step explanation:

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0.01875

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Lisa decided to start exercising. The first day he jogged 0.5 miles. The next day she plans to jog 0.1 more than the previous da
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A cash register contains $20 bills and $100 bills with a total value of $1460. If there are 21 bills total, then how many of
ella [17]

The register contains 8 number of $20 bills and 13 number of $100 bills.

<h3>What is termed as the linear equation in two variables?</h3>
  • A linear equation in two variables is one that is written in the form ax + by + c=0, where a, b, and c are real numbers as well as the coefficients of x and y, i.e. a and b, are not equal to zero.

Let 'x' be the of $20 bills.

Let 'y' be of $100 bills.

Total bill = 21

x+y = 21

y = -x+21 ......eq1

Now,

Total price = $1460.

20x + 100y = 1460

Put value of y from eq 1.

20x + 100(-x+21) = 1460

20x-100x+2100=1460

-80x=-640

x=8  (Number of $20 bill)

And,

-8+21=13

y=13 (Number of $100 bills)

Thus, the register contains 8 number of $20 bills and 13 number of $100 bills.

To know more about linear equation, here

brainly.com/question/4074386

#SPJ1

The complete question is-

A cash register contains $20 bills and $100 bills with a total value of $1460. If there are 21 bills total, then how many of  each does the register contain?

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2 years ago
How do i solve s^2=81
Goshia [24]

s^2=81\\\\s=-9 \vee s=9

7 0
4 years ago
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