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Airida [17]
3 years ago
12

What is the friendly numbers strategy

Mathematics
1 answer:
kogti [31]3 years ago
8 0
I think what you're trying to say is basic facts? Idk comment me back if you need more help thanks!
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The water level of a lake fell by 1 1/4 in. during a 1 1/2 week long drought what is the average rate at which the water level c
Luda [366]

Answer:

\frac{5}{6}  inches per week

Step-by-step explanation:

This is a very simple ratio problem. Basically,

<em>If 1\frac{1}{4} inches in  1\frac{1}{2} week, then HOW MANY INCHES (let it be x) in 1 week???</em>

<em />

We set up two ratios and cross multiply and solve for x:

\frac{1\frac{1}{4}}{1\frac{1}{2}}=\frac{x}{1}\\1\frac{1}{4}*1=1\frac{1}{2}*x\\1\frac{1}{4}=1\frac{1}{2}x\\x=\frac{1\frac{1}{4}}{1\frac{1}{2}}\\x=\frac{\frac{5}{4}}{\frac{3}{2}}\\x=\frac{5}{4}*\frac{2}{3}\\x=\frac{5}{6}

So average rate at which the water level changed every week is 5/6 inches per week.

4 0
3 years ago
Hi guys I need help in these two or one I will post one by one please help me in these pleaseeeee.Im so confuseddddd
Alchen [17]
The slope is 3/2 (use rise over run)
6 0
3 years ago
Read 2 more answers
For the figures given
lesya [120]

Step-by-step explanation:

  1. line of symmetry = 0. Rotational symmetry = 120°
  2. line of symmetry = 4. Rotational symmetry = 90°
  3. line of symmetry = 0. Rotational symmetry = 360°
  4. line of symmetry = 0. Rotational symmetry = 180°

hope you are helped.

5 0
3 years ago
Xqdfhsisdlifjbosiuhodijxcn
aleksandr82 [10.1K]
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5 0
3 years ago
Read 2 more answers
The sum of 2 numbers is 28. One number is 5 less than twice the other number. What are the numbers?
suter [353]
28 = x + (2x - 5)
28 = 3x - 5
+5 +5
33 = 3x
/3 /3
11 = x


On number is 11, the other is 17.

Check:
11(2)=22-5=17
6 0
2 years ago
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