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Katen [24]
2 years ago
14

7. Evaluate the expression ab for a = 8 and b=5.

Mathematics
1 answer:
Neporo4naja [7]2 years ago
8 0

Answer:

40

Step-by-step explanation:

First, we must know that ab is the same as:

a × b

Now, since a is given as 8, we can substitute a with 8. This is shown below:

ab = 8 × b

Similarly, b is given as 5. So, we can substitute b with 5:

ab = 8 × 5

With this, we can now evaluate ab as shown below:

ab = 8 × 5

= 40

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3x + 5 = x - 3
dusya [7]

Answer:

x = -4

Step-by-step explanation:

3x + 5 = x - 3

Subtract x from each side

3x+5-x = x-3-x

2x+5 = -3

Subtract 5 from each side

2x+5-5 = -3-5

2x = -8

Divide each side by 2

2x/2 = -8/2

x = -4

7 0
2 years ago
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Janet, an experienced shipping clerk, can fill a certain order in 7 hours. Jim, a new clerk, needs 9 hours to do the same job.
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3 0
3 years ago
Please Help Me ASAP Will Thank Rate 5 Starts And Mark Brainliest If You Are CORRECT
Ivan

Answer:

The correct option is 4.

Step-by-step explanation:

It is given that figure ABCD is transformed to figure A′B′C′D′.

The vertices of ABCD are A(1,1), B(3,3), C(4,2) and D(4,1).

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I Hope It's Helpful :)

4 0
3 years ago
Read 2 more answers
Jeff wants to make an a in his math course this semester. To do so, he must have an average of 90 or above. If his test scores t
Kobotan [32]
(88 + 92 + 96 + x) / 4 = 90
(276 + x) / 4 = 90
276 + x = 90 * 4
276 + x = 360
x = 360 - 276
x = 84 <=== he would need an 84
6 0
2 years ago
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HELPPP ASAP WILL MARK BRAINLEST!!!
kakasveta [241]

Answer:

B

Step-by-step explanation:

I picked B. The frequency has 4 things from 0-4, 5  things from 5-9, 3 things from 10-14, and 2 things from 15-19. I counted them for you

Hope this helps please mark brainliest :D

5 0
3 years ago
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