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erma4kov [3.2K]
3 years ago
11

A famous mathematician and physicist named Archimede was born in 287 B.C. Write an integer to express the year of his birth.

Mathematics
2 answers:
il63 [147K]3 years ago
8 0
-287 A.D (idk though)
liberstina [14]3 years ago
4 0
-287..hold on let me see.
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Molly had a $12 gift card to download music. She bought 8 songs that each cost the same amount. Write a variable equation, then
inn [45]

Answer:

1.Equation ----- 8x=12

2. x=1.5

3. cost of a single song is $1.5

4.$12 gift card will download 8 songs

Step-by-step explanation:

The amount of money the gift card holds is $12

Number of songs bought= 8 songs

Let the cost of a single song to be =$x

The cost of 8 songs will be =$x × 8=$ 8x

So the 8 songs will all cost $12

This means; $ 8x = $12

Equation------ 8x=12

Finding cost of a single song

8x=12------------------divide by 8 both sides

x=12/8------------------simplify

x=3/2 = $ 1.5

Checking for solution

if a single song costs $1.5 , who many songs can a gift card with $12 download?

Here we divide $12 by $1.5 = $12/$1.5= 8 songs------------correct number of songs as mentioned in the question.

7 0
3 years ago
Write the verbal phrase below as an algebraic expression.
ra1l [238]

Answer:

9 x D

Step-by-step explanation:

D being the number of doughnuts produced.

8 0
3 years ago
The image below shows the download speed of three different companies. Use the information to answer the questions.
inessss [21]

Answer:

1) The download speed for AT&T is 1,800

2) The download speed for Bidmore is 1,500

3) The download speed for Comcast is 1,680

4) AT&T has the best download speed out of the three.

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Step-by-step explanation:

5 0
3 years ago
This is 7th grade math, I really need to know this thanks!
Fynjy0 [20]

Answer:

Step-by-step explanation:

30*15%=9/2=4.5

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5 0
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(½ point for model; ½ point for correct simplified expression)<br>(8x + 2) + (-9x + 7)
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Answer:

Simplified= −x+9

Step-by-step explanation:

5 0
3 years ago
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