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Ghella [55]
3 years ago
9

Is this statement about equivalent expressions true? (2 + 5) + 8 = 2 + (5 + 8)

Mathematics
1 answer:
alexdok [17]3 years ago
6 0
Yes

(2+5)+8=2+(5+8)
7+8=2+13
15=15
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Lemur [1.5K]

Answer:

48

Step-by-step explanation:

36 divide by 3 times 4

= 36 ÷ 3 x 4   (By PEDMAS, it doesnt matter which operation you do first, but we'll choose to do division first)

= (36 ÷ 3) x 4

= 12 x 4

= 48

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4 years ago
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Jimmy loaded three bags of sand into his wheelbarrow. The bags weighed 24/12 lbs, 32/35 lbs, and 44/18 lbs. The total amount of
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Find Mean, Median, mode and range. Round to the nearest tenth.
Zigmanuir [339]

Answer:

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Mode=32

Range=38

Step-by-step explanation:

From the stem and leaf plot, we obtain the original data as:

9,11,12,12,14,17,25,25,27,32,32,32,33,35,41,42,47

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The range is the highest observation minus the least observation.

The range is 47-9=38

The mean is given by:

\bar x =  \frac{9 + 11 + 12 + 12 + 14 + 17 + 25 + 25 + 27 + 32 + 32 + 32 + 33 + 35 + 41 + 42 + 47}{17}

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7 0
3 years ago
Solve the equation 40a^2+4a=0
sergiy2304 [10]
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Step-by-step explanation:

Detention of coefficient: The number next to the letter variable.

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3 years ago
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