3 years ago

What is the slope of the line represented by this equation -3x+8y=12

Mathematics

1 answer:

kolbaska11 [484]3 years ago

3 0

The answer would be -3/8x

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Jacob receives $15 per week for his allowance. His parents have asked him to put $5 in his savings account and the rest of his a

drek231 [11]

Answer:

5:10

Step-by-step explanation:

$5-money he saves

$10-money he can spend

8 0

3 years ago

Write an exponential function to model the situation. A population of 470 animals decreases at an annual rate of 12%.

Tamiku [17]

$\bf \qquad \textit{Amount for Exponential Decay}
\\\\
A=P(1 - r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{initial amount}\to &470\\
r=rate\to 12\%\to \frac{12}{100}\to &0.12\\
t=\textit{elapsed time}\\
\end{cases}
\\\\\\
A=470(1-0.12)^t\implies A=470(0.88)^t$

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3 years ago

Janet plants 20 varieties of flowers in the spring . She reports that 90% of the flowers she have planted bloomed

SIZIF [17.4K]

Answer:

Step-by-step explanation:

90% of 20 is 18

8 0

3 years ago

Read 2 more answers

2w + 7 = 2(w + 5) - 8

BARSIC [14]

Answer:

no solution

Step-by-step explanation:

2w + 7 = 2(w + 5) - 8

Distribute

2w+7 = 2w+10-8

Combine like terms

2w+7 = 2w+2

Subtract 2w from each side

7 = 2

This is never true so there is no solution

7 0

3 years ago

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What is the vertex of the parabola with the equation y=1/5x^2 + 2x - 8

bixtya [17]

Answer:

(-5,-13)

Step-by-step explanation:

Find the vertex of the parabola y=1/5x^2+2x−8.

In this equation a=15 and b = 2.

x= -2/2(1/5) = -2/2/5 = -2/1 * 5/2 = -5

Substitute −5 into the equation y=1/5x^2+2x−8

y=1/5(−5)^2+2(−5)−8

y=5−10−8

y=−13

The vertex is (−5 , −13)

8 0

3 years ago