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mamaluj [8]
2 years ago
5

Solve the system of equations -30 + 7y = -18 and 4x – 4y = 8 by combining the equations.

Mathematics
1 answer:
mariarad [96]2 years ago
6 0
The answer is (4/23,-42/23).
good luck!
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PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS
Jlenok [28]

Answer:

its B

Step-by-step explanation:

6 0
2 years ago
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B) A number includes only three powers of 10, but it is more<br> than 50 000.
olga2289 [7]

do 10 to the power of 10

50 to teh power of 3

100000 to the power of 3

6 0
2 years ago
Listen
makkiz [27]

Answer:

The answer is the third equation. A = 250*(1 +0.016)^(0.75)

Step-by-step explanation:

Since Javier deposited $250 into an account with annual interest rate, then as the years passes his account will grow in the manner shown below:

account(0) = 250

account(1) = account(0)*(1 + 1.6/100) = account(0)*(1 + 0.016) = account(0)*1.016

account(2) = account(1)*1.016 = account(0)*1.016*1.016 = account(0)*(1.016)²

account(3) = account(2)*1.016 = account(0)*(1.016)²*1.016 = account(0)*(1.016)³

account(n) = account(0)*(1.016)^n

Where n is the number of years, account(0) is the initial amount. In this case only 9 months have passed, so we need to convert this value to years, dividing it by 12, which is 9/12 = 0.75. The initial amount was 250, so the equation is:

A = 250*(1.016)^(0.75)

The answer is the third equation.

7 0
2 years ago
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What are the coefficients in 9/3+6+9a​
Norma-Jean [14]

Answer:

9

Step-by-step explanation:

cuz it has a variable by it

7 0
2 years ago
A truck can be rented from Company A for ​$40 a day plus ​$0.40 per mile. Company B charges ​$20 a day plus ​$0.50 per mile to r
torisob [31]

The number of miles in day at which the rental cost for the company A and Company B are the same is 200 miles

The Company A rented the truck for $40 a day plus $0.40 per miles

The expression will be

40+0.40x

Where x  is the number of miles

The company B rented the truck for $20 a day plus $0.50 per miles

20+0.50x

To find the number of miles in a day at which the rental costs for Company A and Company B are the same, the linear equation will be

40+0.40x = 20+0.50x

40-20 = 0.50x-0.40x

0.1x = 20

x = 200 miles

Hence, the number of miles in day at which the rental cost for the company A and Company B are the same is 200 miles

Learn more about linear equation here

brainly.com/question/13738061

#SPJ1

6 0
9 months ago
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