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liraira [26]
3 years ago
7

Add. Express your answer in simplest mixed-number form. 2 3/4 + 4 3/4

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
5 0
2 3/4 + 4 3/4
= 6 6/4
= 7 2/4
= 7 1/2
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A school buys games for 6 classrooms. It buys 3 board games 4 puzzles games and 1 video game for each class room how many games
Snowcat [4.5K]

3+4+1 for each class so it's 8

8 x 6 for all the classrooms so it's 48.  The school buys 48 games

6 0
3 years ago
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Dude this should be so easy but this is going in one ear and out the other how do I do this send help ​
kipiarov [429]

Answer:

0.5 hours

Explanation:

Given:

  • speed: 17 miles/hour
  • distance: 8 miles

Formula:

  • time taken = distance ÷ speed

Solve:

  • time taken = 8 ÷ 17 = 0.4706 ≈ 0.5 hours  (rounded to nearest tenth)
6 0
2 years ago
Which is the additive inverse of the complex number -8+3i?
lawyer [7]
The additive inverse of a complex z is a complex number -z, so that

\mathsf{z+(-z)=-z+z=0+0i=0}


Finding -z:

\mathsf{z=-8+3i}\\\\\\ \mathsf{z+(-z)=0+0i}\\\\\ \mathsf{-8+3i+(-z)=0+0i}\\\\ \mathsf{-z=0+0i+8-3i}\\\\ \mathsf{-z=(0+8)+(0i-3i)}\\\\ \boxed{\begin{array}{c}\mathsf{-z=8-3i} \end{array}}\qquad\checkmark


If you're having problems understanding this answer, try seeing it through your browser: <span>brainly.com/question/2159647


</span>I hope this helps.


Tags: <em>complex number additive inverse opposite algebra</em>

3 0
3 years ago
Which pair of numbers has a GCF of 3? Group of answer choices (A) 3 and 18 (B) 8 and 24 (C)12 and 18 (D) 1 and 3
Arte-miy333 [17]

Answer:

A, B and C

Step-by-step explanation:

A) 3 and 18 = has 3 as factor

B) 8 and 24 = has 3 as factor

C) 12 and 18 = has 3 as factor

D) 1 and 3 = has as factor of 1 and 3

so the answer is A, B and C

5 0
4 years ago
What is the volume of the composite figure?
sertanlavr [38]

Look at the picture.

We have 3 cuboids. The formula of a volume of a cuboid is:

V = Length × Width ×  Height = lwh

The cuboid 1 are congruent to the cuboid 2.

<h2>1&2</h2>

l = 9 in, w = 10 in, h = 10 in

V = (9)(10)(10) = 900 in³

<h2>3</h2>

l = 6 in, w = 10 in, h = 10 in

V = (6)(10)(10) = 600 in³

The volume of the composite prism:

V = 2(900) + 600 = 1800 + 600 = 2400 in³

8 0
3 years ago
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