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zvonat [6]
4 years ago
13

What happens to the inequality sign when the problem is divided by a -1

Mathematics
1 answer:
arlik [135]4 years ago
5 0

It changes completely, for instance if it's -4x < -5, when all of this is divided by a -1, it becomes 4x > 5.

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Birds burgers barn sold 485 hamburgers today. The number sold with cheese wise half the number sold without cheese. How many of
frez [133]

Answer:

The number of hamburgers sold with cheese was 165 and the number of hamburgers sold without cheese was 330

Step-by-step explanation:

<u><em>The correct question is</em></u>

Birds burgers barn sold <em>495 hamburgers</em> today. The number sold with cheese wise half the number sold without cheese. How many of each kind were sold?

Let

x -----> the number of hamburgers sold with cheese

y -----> the number of hamburgers sold without cheese

we know that

x+y=495 -----> equation A

x=\frac{1}{2}y ----> equation B

substitute the equation B in equation A and solve for y

y+\frac{1}{2}y=495

\frac{3}{2}y=495

y=495(2)/3

y=330

Find the value of x

x=\frac{1}{2}330=165

therefore

The number of hamburgers sold with cheese was 165 and the number of hamburgers sold without cheese was 330

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3 years ago
Find the value of x.pease
Andrej [43]
I think you forgot the question
8 0
3 years ago
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I need help my question is -2 less than or equal to 3x-2 &lt;10
Kisachek [45]

A n s w e r:

0 ≤ x < 4

4 0
3 years ago
A restaurant charges $12.50 for 5 soft drinks. How much does the restaurant charge per soft drink?
djyliett [7]

Answer:

$2.50

Step-by-step explanation:

This problem is asking for the unit rate. To solve this problem, you would do $12.50 divided by 5 to get $2.50.

$12.50 divided by 5 = $2.50

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4 years ago
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Given the function h(x), determine the functions which correctly decompose h(x) into component functions f(x) and g(x) so that h
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\text{Hi there! :)}

\large\boxed{g(x) = 7x + 2\text{ , } f(x) = \sqrt{x}  - 10}

\text{h(x) = f(g(x)), so determine what g(x) was substituted into f(x):}\\\\\text{Given the equation } h(x) = \sqrt{7x +2}- 10:\\\\\text{In the part of the equation with a variable, we see that "7x + 2" is in a square root:}

\text{Therefore, we can say that g(x) = 7x + 2:}\\\\\text{If h(x) = f(7x + 2), then f(x) must be:}\\\\f(x) = \sqrt{x} - 10

\text{The respective functions would be:}\\\\g(x) = 7x + 2\\\\f(x) = \sqrt{x}  - 10

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3 years ago
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