Nico is saving money for his college education. He invests some money at 9% and $1400 less than that amount at 3%. The investments produced a total of $198 interest in 1 yr. how much did he invest at each rate?

Answers

Answer 1

Answer: Let x = the amount of money he invests at 9%
and y = the amount of money he invests at 3%

y = x - 1400
0.09x + 0.03y = 198

x - y = 1400
9x + 3y = 19800

3x - 3y = 4200
9x + 3y = 19800

12x = 24000
x = 2000
y = 600

$2000 invested at 9% interest
and $600 invested at 3% interest.

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What is 62/78 x 1 6/8

Answers

62/78*( 1 6/8)

= 31/39*( 1 6/8)

= 31/29*( 1 3/4 )

= 31/39* 7/4
Multiply the numerator together and the denominator together

= 217/156

I hope that's help ! Any questions ? Let me know

What is an equivalent expression for 9(3+8x)

please hurry

Answers

9(3+8x)
The answer is 27+72x

Answer:

72x+27

Step-by-step explanation:

Use the distributive property to multiply 9 by 3+8x.

27+72x

Please give me the Brainliest answer!!!!!!!

What is the value of x in the solution to the system of equations? 4x - 2y = 5 y = 3x - 1

Answers

Answer:

$\huge\boxed{\sf x = -2}$

Step-by-step explanation:

4x - 2y = 5 -------------------------------(1)

y = 3x - 1 ----------------------------------(2)

Put Eq. (2) in (1)

4x - 2(3x-1) = 5

4x - 6x + 1 = 5

-2x + 1 = 5

Subtracting 1 to both sides

-2x = 5 - 1

-2x = 4

Dividing both sides by -2

x = 4 / -2

x = -2

$\rule[225]{225}{2}$

Hope this helped!

~AnonymousHelper1807

Answer:

X = 7

Step-by-step explanation:

Please mark brainliest.

What's 2+2-7*22? i cant figure it out with mental math

Answers

The answer your looking -150

If its 7 times 22 then the answer is negative 36.

What are all the real zeros of y = (x - 12)3 - 10?

Answers

x = 3^√10 + 12

Is the right answer 100%

12 would be the only zero if you meant to write the equation as y=(x-12)(3-10)

You are traveling at 58 miles per hour in a 70 km per hour speed zone. How fast are you traveling in km per hour?

Answers

58 miles = 93.3 km.

58 miles per hour = 93.3 km per hour.

I'll need to see your license and registration.

you are traveling at 93.342 kph

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