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3 years ago

10

Ryan had 60 stamps. He gave 2/3 of the stamps to Olivia. In return, Olivia gave 2/3 of her stamps to Ryan how Many stamps does R

yan have now?

1 answer:

larisa86 [58]3 years ago

8 0

Go f your self you middle school newbie

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The equation for the pH of a substance is pH = –log[H+], where H+ is the concentration of hydrogen ions. Which equation models t

Elden [556K]

$\bf \textit{Logarithm Cancellation Rules}
\\\\
log_a a^x = x\qquad \qquad \boxed{a^{log_a x}=x}\\\\
-------------------------------\\\\
pH=-log(H+)\qquad \stackrel{pH}{7.2}=-log(H+)\implies -7.2=log_{10}(H+)
\\\\\\
10^{-7.2}=10^{log_{10}(H+)}\implies 10^{-7.2}=H+\implies \cfrac{1}{10^{7.2}}=H+$

3 0

3 years ago

Read 2 more answers

Katie is k years old. Harry is 4 years older than Katie. Rachel is twice as old as Harry. If you add together the ages of Katie,

vichka [17]

K+(k+4)+2k=36
4k+4=36
4k=36-4
4k=32
k=8

5 0

4 years ago

Solve the following inequality for d. Write your answer in simplest form.

suter [353]

Answer:

d>67

Step-by-step explanation:

Let's solve your inequality step-by-step.

−50−(−9d+7)>−d+10+9d

Step 1: Simplify both sides of the inequality.

9d−57>8d+10

Step 2: Subtract 8d from both sides.

9d−57−8d>8d+10−8d

d−57>10

Step 3: Add 57 to both sides.

d−57+57>10+57

d>67

8 0

3 years ago

What is the best method to solve the below system of equations<br> 3x + 2y =5 <br> y=2x+3

Nesterboy [21]

Using substitution method
Your answer is

X=1
Y=1

6 0

3 years ago

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In a week, a man received a paycheck for $826.60. The withholding for taxes was $91.40. If he worked 34 hours in that week,

sleet_krkn [62]

Answer:

Step-by-step explanation:

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2 years ago