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3 years ago

Round to the nearest whole number and cluster to give an estimate for 15.23 + 12.8 + 4.93 + 7.21.

Mathematics

2 answers:

dangina [55]3 years ago

3 0

Answer:

the answer is 40

Step-by-step explanation:

15.23+12.8+4.93+7.21=40.17 then you round 40.17 to 40

Drupady [299]3 years ago

3 0

Answer:

Step-by-step explanation:

15.23 + 12.8 + 4.93 + 7.21

27.31 + 12.34

39.65

round the number to a whole number

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..Jenny's mom says she has an hour before bedtime. Jenny spends 3/5 of the hour texting a

jekas [21]

Answer: 2.7

Step by step explanation

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4 years ago

If 5+(-8)n=29 . What does n equal?

Zinaida [17]

Steps to solve
1) We have 5 +(-8)n = 29, which we can change to 5 - 8n = 29, because a positive times negative equals a negative
2) To isolate n, we move all of the other numbers to the other side of the equation. Since 5 is the only number on the left side, we subtract 5 from both sides
5 -5 - 8n = 29 -5
-8n = 24
3) Now, to find n, we want to just have one n on the left side instead of -8, so we divide the equation by -8 to find that
-8n/-8 = 24/8
n = 3

Therefore, n = 3

7 0

3 years ago

Read 2 more answers

Anyone know this(the rest of the answer,(2^9)^3/(2^3)^9

Elis [28]

Answer:

2^3

Step-by-step explanation:

(2^3 x 2^6)^1/3

Solve :

(2^3 x 2^6)^1/3

= (2^9)^1/3

=2^3

6 0

3 years ago

Which of the following is the missing justification?

Montano1993 [528]

Answer:

B and C

2. B Multiplication property of equality

3. C Distributive Property

Step-by-step explanation:

1. Given

$\dfrac{1}{5}\cdot x+6=5$

2. Multiply this equation by 5:

$\left(\dfrac{1}{5}\cdot x+6\right)\cdot 5=5\cdot 5$

Multiplication property of equality

3. Use distributive property of equality:

$\dfrac{1}{5}\cdot x\cdot 5+6\cdot 5=25\\ \\x+30=25$

4. Subtract 30:

$x+30-30=25-30\\ \\x=-5$

Subtraction property of equality.

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3 years ago

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a picture 10 1/4 feet long is to be centered on a wall that is 14 1/2 feet long. How much more space is there from the edge of t

Zarrin [17]

Answer:

Length from the edge will be $=2{\frac{1}{8}}$ feet

Step-by-step explanation:

To find length we have to conver mixed fraction to improper fraction

The length of the wall $= \frac{29}{2}$

Length of picture $=\frac{41}{4}$

First we find the total length of wall remain after picture was hung to the wall.

Length of wall remain vacant $=\frac{29}{2}-\frac{41}{4}$

Taking LCM and solving we get

$=\frac{58-41}{4} =\frac{17}{4}$

Total length of wall remain vacant $=\frac{17}{4}$

As the picture to be centered in wall, therefore space feom one edge of wall will be half that of length remain vacant as the same length to be left vacant feom both sides.

Space from one edge $=\frac{17}{4} \times \frac{1}{2}$

$= \frac{17}{8}$

$=2{\frac{1}{8}}$

Length from the edge will be $=2{\frac{1}{8}}$ feet

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4 years ago