<img src="https://tex.z-dn.net/?f=-5%283.15-%5Cfrac%7B21%7D%7B20%7D%20%29%2B7" id="TexFormula1" title="-5(3.15-\frac{21}{20} )+7

50 is the old value and 23 is the new value. In this case we have a negative change (decrease) of -54 percent because the new value is smaller than the old value. Using this tool you can find the percent decrease for any value.

7 0

3 years ago

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Can someone please help me?

Bingel [31]

So the right answer is 29.

Look at the attached picture

Hope it will help you....

Good luck on your assignment

~pragya

8 0

3 years ago

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What should be the b-value in the equation shown below if the equation is a perfect square trinomial?

masha68 [24]

Answer:

B=10

Step-by-step explanation:

It's a perfect square of equation ax²+2abx+b²

I'm the given equation a is 1 and b is 5 so 2(a)(b)=2(1)(5)=10

(ps: when I say b in the explanation I mean another b not the one in question as to not be confused)

4 0

3 years ago