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Kaylis [27]
3 years ago
12

To increase or decrease an amount by 30% what single multiplier would you use?

Mathematics
2 answers:
adelina 88 [10]3 years ago
8 0
<span>i think that would be x 30/100</span>
Nataly_w [17]3 years ago
5 0
100%-30%=70%
100%+30%=130%

to decrese by 30%, multiply by 70%
to increase by 30%, multiply by 130%

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Answer:

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2x + y = 13<br> What y????
hoa [83]

Answer:

2(5) + 3 = 13

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8 0
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Read 2 more answers
I have no idea!! Please help!!!
Ber [7]
The area of a traingle is \frac{1}{2}bh
So we need to know the base and the height
To work out the sides of a right angle triangle we can use a²+b²=c
c is the hypotenuse and a and b are the other sides
Because this triangle is isoceles we know that a and b are the same

a²+b²=c²
a²+a²=c²
2a²=c²
2a²=(x√6)²
2a²=(x√6)(x√6)
2a²=x²+x√6+x√6+6
2a²=x²+x√6+x√6+6
a²=\frac{x^{2}+x \sqrt{6}+x \sqrt{6}+6 }{2}
a=\sqrt{\frac{x^{2}+x\sqrt{6}+x\sqrt{6}+6}{2}}

A=\frac{1}{2}bh
A=\frac{1}{2}a*a
A=\frac{1}{2}×\sqrt{\frac{x^{2}+x\sqrt{6}+x\sqrt{6}+6}{2}}×\sqrt{\frac{x^{2}+x\sqrt{6}+x\sqrt{6}+6}{2}}
A=\frac{1}{2}×\frac{x^{2}+x \sqrt{6}+x \sqrt{6}+6 }{2}
A=\frac{x^{2}+x \sqrt{6}+x \sqrt{6}+6 }{4}
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3 years ago
Please Help!! ASAP 50 POINTS!!!!!!!!
soldier1979 [14.2K]

The statement will be m∠ABC = m∠GHI.

Reason: ∠ABC ≅ ∠GHI

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3 years ago
Expand 2x (5x-2) please help i’m confused
Leno4ka [110]
10x^2-4x is your answer! :)
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3 years ago
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