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JulsSmile [24]
3 years ago
14

Brian said 78+92+85 is equal to 300 because each addens is close to 100, and three 100s is the same as 300. Explain why Brian's

reasoning is not reasonable.
Mathematics
2 answers:
djyliett [7]3 years ago
6 0

Answer:

Step-by-step explanation:

Brian didn't round up to the nearest hundreds. so there's no chance for him to get his result as 300. If he felt that they're close to 100, he should have rounded up

Flura [38]3 years ago
4 0

Answer:

First off 78+92+85=255 so yeah its not 300. Plus 300 is no where near 100, but yes three 100s is 300.

Step-by-step explanation:

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3(-6) + 5 = 26 - 3 is it true, false, or open
max2010maxim [7]

Answer: This statement is false.

Step-by-step explanation: According to the order of operations, the first step in evaluating the left side of the equation would be to multiple 3(-6). This equals -18. Adding 5 to that results in -13. Because 23 (26-3) is not equal to -13, this equation is untrue.

7 0
4 years ago
If the dimensions of the following cylinder are doubled, what factor will the surface area change by?
Vedmedyk [2.9K]

Answer:

probably 2 or 4

Step-by-step explanation:

7 0
3 years ago
Which expression repressents “6 more than x”?
Damm [24]
It would be C.

"more than" is basically saying they're adding it.

x + 6
5 0
3 years ago
2x2 − 2z4 + y2 − x2 + z4 if x = −4, y = 3, and z = 2.
gavmur [86]
2(-4)2=-16
-2(2)4=-16
(3)2=6
-(-4)2=8
(2)4=8
8+8=16+6=22-16=6-16=-10
-10 is the final answer.
6 0
3 years ago
What is the volume in cubic inches?
Fittoniya [83]

Answer

A) 2160 cubic inches

Step by step explanation

Volume of a rectangular prism = length *width*height.

The give figure (stairway) consists of two rectangular prism.

The volume of the first rectangular prism (bigger one) = 12 *10*12

=120*12

1 st prism = 1440 cubic inches

The volume of the rectangular prism 2 (smaller one) = 12*10*6

=120*6

The volume of the rectangular prism 2 = 720 cubic inches

The volume of the concrete stairway = Volume of the prism 1 + Volume of the prism 2

= 1440 + 720

The volume of the concrete stairway = 2160 cubic inches.

Thank you.

4 0
4 years ago
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