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3 years ago

Solve b=3/4a a+b=21 please need help

Mathematics

2 answers:

Anna007 [38]3 years ago

5 0

Hello there! Your answer should be {b, a} = {9, 12}.
Please tell me If I was right.

lianna [129]3 years ago

3 0

{b,a} = {9,12} HOPE IT HELPS.

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Kwame bought a car for $25,000. The value of the car is decreasing at a rate of 6.5% each year. Write a function that represents

sweet-ann [11.9K]

<h3>The function that represents the price P of the car after x years is:</h3>

$P = 25000(0.935)^x$

Solution:

The decreasing function is given as:

$y = a(1 - r)^t$

Where,

y is future value

a is initial value

r is decreasing rate in decimal

t is time period

From given,

a = 25000

$r = 6.5 \% = \frac{6.5}{100} = 0.065$

number of years = x

future value = P

Therefore,

$P = 25000(1 - 0.065)^x\\\\P = 25000(0.935)^x$

Thus the function is found

8 0

3 years ago

6 (x+15) evaluate the expression for x=-4

Gala2k [10]

The answer would be 66.

6(-4 +15)
=
66

4 0

3 years ago

Read 2 more answers

Drag the numbers below to put them in order from least to greatest: 4 16 1 7 -2 -20

Mariulka [41]

Answer:

Are the 1 and 7 rogether? because if so then -20, -2, 4, 16, 17, if not then -20, -2, 1, 4, 7, 16

7 0

3 years ago

Priya and Han both factored the number 80. Priya says they should both get the same answer even if they started with different f

meriva

Answer:

Priya is right.

Step-by-step explanation:

The factors of 80 is 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

The factor pairs of 80 are

1 x 80, 2 x 40, 4 x 20, 5 x 16 and 8 x 10

If Priya picks 2 x 40, then it's prime factorisation will be, 2 x 2 x 2 x 2 x 5 = 2⁴ x 5.

If Han picks, 5 x 16 = 5 x 2 x 2 x 2 x 2 = 5 x 2⁴ = 2⁴ x 5. This is the same.

Therefore, Priya is correct, because the factors of 80 are always the same, therefore which ever you start with, you'd always get the same answer.

4 0

2 years ago

DUE FIVE MINUTES HELPPPPPP!!!!!!!!!!!!!!!!

iris [78.8K]

Answer:

This is late you said it was due 5 min. yet I this was posted 5 hours. No one can help now.

Step-by-step explanation:

7 0

2 years ago