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3 years ago

Help me solve the Inequality Word Problem and solve?

Mathematics

1 answer:

julia-pushkina [17]3 years ago

7 0

We can write this as an inequality:
$1 + 3x \ \textless \ x - 5$

We can deal with this very easily:
$1 + 2x \ \textless \ -5$
$2x \ \textless \ -6$
$x \ \textless \ -3$

I solved it for you, I cannot graph due to Brainly not supporting it. Sorry, and hope this helps!

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Answer: 0.214

Step-by-step explanation:

There are a total of 14 marbles in the bag, with only 3 being red. 3/14 converts to 0.214

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3 years ago

What is the equation of a line with a slope of 7 and a point (1, 8) on the line?

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3 years ago

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2 years ago

The function f(x) = –x2 + 20x – 75 models the profit from one customer, in dollars, a shop makes for printing photos, where x is

trasher [3.6K]

The function is graphed as shown below

Part A:

We use the formula $- \frac{b}{2a}$ to find the vertex of the function. A quadratic function of the form of $a x^{2} +bx+c$ and equating this form to the given function $- x^{2} +20x-75$ , we have
$b=20$ and $a=-1$ .

Substituting $a$ and $b$ into the vertex formula, we have
$x=- \frac{20}{2(-1)}=10$ , as shown in the graph

This calculation means that the highest profit is achieved when the number of photo printed equals to ten photos

Part B:

We can find solution to this equation by factorising

$- x^{2} +20x-75=0$
$-( x^{2} -20x+75)=0$
$x^{2} -20x+75=0$
$(x-5)(x-15)=0$
$x=5$ and $x=15$ , as shown in the graph

The two values means that the company makes no profit when they either produce 5 or 15 photos

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3 years ago

ARIHANNAL

Svetllana [295]

Answer:

I think its 3 or 3.75 you can check

Step-by-step explanation:

6 0

2 years ago