3 years ago

Please answer this asap

Mathematics

1 answer:

mina [271]3 years ago

5 0

I THINK ITS B IF NOT A

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What is the solution for this inequality? <br><br>need help fast please!

nevsk [136]

Answer:

$x\geq -4$

Step-by-step explanation:

$-10x\leq 40$

divide by -10, which means you need to flip the inequality sign since youre dividing by a negative number

$x\geq -4$

8 0

3 years ago

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Is ( -1 , 2 ) the solution to the system involving y=-1x+1and y=3x+5?

Margaret [11]

Answer:

yes

Step-by-step explanation:

plug it in 1(-1)+1 and 3(-1)+5

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3 years ago

When a number is decreased by 40% of itself the results is 54. What is the number

Orlov [11]

Alright, this is simple. You know what the new number is, 54. You know the original number was decreased by 40%. Your looking for the original number, X. So set up an equation.
x-.4x=54
When X stands by itself, it's perceived to value 1.00
1.00-.4x=54
(1.00-.4 [40%]=.6)
.6x=54

Divide both sides by .6 to eliminate everything else.
.6x/.6=54/.6

You get 90. Your original number was indeed 90.
To check it, we can do 90/40%, or 90/.4=54

~Hope this helps!

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3 years ago

ALGEBRA HELP PLS

SSSSS [86.1K]

Adding both equations
2x=4k
x=2k
y=k
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3 years ago

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A woman bought some large frames for $18 each and some small frames for $4 each at a closeout sale. If she bought 16 frames for

AleksandrR [38]

Answer:

$10