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3 years ago

9

Juan manages an appliance store. In July, sales were $161,800. In August, sales were $117,305. What was the rate of change? That

is, what was the percent increase or percent decrease?

1 answer:

babunello [35]3 years ago

4 0

I think it is a 27.5% decrease

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If ax^3+9x^2+4x-10 when divided by x-3 leaves the reminder 5,then a=

FinnZ [79.3K]

Let f(x) = ax³ + 9x² + 4x – 10

g(x) = 0⇒x - 3 = 0

⇒ x = 0 + 3

⇒ x = 3

On dividing f(x) by x - 3, it leaves a remainder 5.

Now keeping, f(3) = 5

⇒a(3)³ + 9(3)² + 4(3) - 10 = 5

⇒ a × 27 + 9 × 9 + 4 × 3 - 10 = 5

⇒ 27a + 81 + 12 - 10 = 5

⇒ 81 + 12 - 10 - 5 = 27a

⇒ 81 + 12 - 15 = 27a

⇒ 93 - 15 = 27a

⇒ 78 = 27a

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⇒ a = 0.3461

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3 years ago

Find the quotient 4/6÷4/12

maxonik [38]

Keep Change Flip is the way to think about dividing fractions.
First- 4/6 divided by 4/12
Next- Change the division sign to multiplecation 4/6 time 4/12
Then- Flip the second number 4/6 times 12/4
Now multiply

48/24 this simplifies down to 2

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3 years ago

Answer this question please and thank you

bekas [8.4K]

I believe the exact answer is 3.91

3 0

2 years ago

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Lamont is packing for a class trip. He has six school uniform shirts and wants to bring four of these shirts. How many different

Lelechka [254]

I am not sure but my answer came out to 10 different arrangements.

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3 years ago

Diana decided she needed some new friends to play with. She understood that fish were not fun to hang out with, so she bought 3

Mrac [35]

Step-by-step explanation:

Let m be the price of 1 baby mice

Let p be the price of 1 baby python

Given,

$3m + 2p = 103.50$

as equation 1.

and

$3m + 3p = 148.50$

as equation 2

From here we can easily use elimination method

for solving simultaneous equations.

Use Equation 1 - equation 2 to eliminate m to find p.

$(3m - 3m) + (2p - 3p) = 103.50 - 148.50 \\ - p = - 45 \\ p = 45$

Substitute p into equation 1.

$3m + 2(45) = 103.50 \\ 3m + 90 = 103.50 \\ 3m = 103.50 - 90 \\ 3m = 13.50 \\ m = 13.50 \div 3 \\ = 4.50$

therefore 1 baby mice cost $4.50 and 1 baby python costs $45.

3 0

3 years ago

Read 2 more answers