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zzz [600]
2 years ago
13

7x - 4 ≤ 6 solving inequalities

Mathematics
2 answers:
exis [7]2 years ago
7 0

first thing group the like terms

Step-by-step explanation:

you have to take negative four and group it with six, when negative four is taken to the other side it's no longer negative it's positive 4 it changes a sign because it's on the other side, therefore it will be 6+4=10 and then you have to divide both sides by 7 for instance 7×÷7 is equal to and<10 ÷7

therefore x is equal and < 10/7

Jlenok [28]2 years ago
7 0

Answer

x <= 10/7

Step-by-step explanation:

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Orbital Toys sells two types of sets of magnetic spheres, silver and brass. The store owner, Lucy Ball, pays $8 and $16 for each
sdas [7]

Answer:

The maximum profit will be reached by buying 500 brass magnetic spheres and 1500 silver magnetic spheres.

Step-by-step explanation:

In order to solve this you need to create a system of equations, with two values that will create the answer we are looking for, the thing that we don't know here is how many of each are we buying so the number of silver magnetic spheres will be represented by "y" and the brass magnetic spheres will be represented by "x".

So we know that x+y=2000

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We now just solve for one of them

x=(2000-y)

8(2000-y)+16y=20,000

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So we know that the maximum profit will be reached by buying 500 brass magnetic spheres and 1500 silver magnetic spheres.

5 0
3 years ago
48 = 3/2y <br> simplify your answer as much as possible
Sloan [31]
48 = 1\frac{1}{2}y \\48(\frac{2}{3}) = 1\frac{1}{2}y(\frac{2}{3}) \\32 = y
4 0
3 years ago
_ Is –7 + 9 positive or negative
Yanka [14]

Answer:

Positive 2

Step-by-step explanation:

its like ur subtracting 9+ (-7)

its basically 9-7=2

but not all problems r like this.

Brainlest plz

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2 years ago
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