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Romashka [77]
3 years ago
6

Is the open sentence 3z = 2z +5 true or false when z=5?

Mathematics
1 answer:
11111nata11111 [884]3 years ago
8 0
If 3z=2z+5 and z=5, then you’d just plug the 5 in.

3(5)=2(5)+5 —> 15=10+5 —> 15=15

This statement is TRUE because 15 does equal 15.

I hope this helps. :)
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Valentina has a tray where she keeps all of her important papers. the tray is in the shape of a rectangular prism with no top. a
mel-nik [20]

The volume of a rectangular prism with a length of 12 inches, width of 10 inches, and height of 2.5 inches is 300 cubic inches

<h3>Volume of a rectangular prism</h3>
  • Length= 12 inches
  • Width = 10 inches
  • Height = 2.5 inches

Volume of a rectangular prism = length × width × height

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4 0
2 years ago
Darpana solved the equation s = StartFraction a + b + c Over 3 EndFraction for a. Her steps are shown below: 1. Multiply by 3: s
Harman [31]

Answer:

Option (c) is correct.

Step-by-step explanation:

Given equation is :

s=\dfrac{a+b+c}{3}

The equation can be solved for a as follows :

Step 1.

Cross multiply the given equation

3s=a+b+c

Step 2.

Now subtract b on both sides

3s-b = a+b+c-b

3s-b = a+c

Step 3.

Subtract c on both sides

3s-b-c=a+c-c

⇒ a=3s-b-c

The statement that is true for Darpana is " In step 3, she needed to subtract c rather than divide".

5 0
3 years ago
Read 2 more answers
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3 0
3 years ago
The average shoulder height of the grizzly bear is 3.35 feet. The average shoulder height of the polar bear is 4.4 feet. How muc
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The polar bear is 1.05 feet taller.
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3 years ago
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