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lora16 [44]
3 years ago
10

Which expression is equivalent to 1/2 x + (-70) - 2 1/4 x - (-2) *

Mathematics
1 answer:
katovenus [111]3 years ago
8 0

Answer:

-7/4x-68

Step-by-step explanation:

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HELP!!!!
Nonamiya [84]
Your answer is E. $25.

First let under 12 = u, over 12 = o, and adults = a.
We can now write the equations:

2u + 3a + 3o = 174
4u + 2a = 122
a + o = 46

Because we know that a + o = 46, and 3a + 3o is in the first equation, we can multiply 46 by 3 to get what 3a + 3o equals. This makes 138.
Now we can substitute 138 into the first equation to get 2u + 138 = 174
2u = 36
u = 18

Now that we know what u equals, we can substitute it in to the second equation to get:
4(18) + 2a = 122
72 + 2a = 122
2a = 50
a = $25

I hope this helps! Let me know if you have any questions :)
8 0
3 years ago
Alan spent 3 hours building a model for his science project. This was 60% of the total time he spent on the project. How many ho
Vikentia [17]

Answer:

1.8 hours i hope this helps

Step-by-step explanation:

6 0
3 years ago
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2x + y = 9<br>3x - y = 16​
snow_tiger [21]

Answer:

X=7 y=-5

Step-by-step explanation:

2x+y=9

3x-y=16

use the process of elimination finding out what works for one problem and try it on the other until they both work

7 0
3 years ago
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What is the absolute value of -22
Bond [772]
The absolute value of a number is always positive. It is the distance the number is away from zero.
|-22| = 22
8 0
3 years ago
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CAN YOU PLS HELP MEEEE
laiz [17]

Answer:

10x - 2y

Step-by-step explanation:

<em>simplify</em><em> </em><em>the</em><em> </em><em>expression</em><em>.</em><em> </em>

<em>8x</em><em>–</em><em>2y</em><em> </em><em>+</em><em> </em><em>x</em><em> </em><em>+</em><em> </em><em>x</em><em> </em>

<em>combine</em><em> </em><em>numbers</em><em> </em><em>that</em><em> </em><em>have</em><em> </em><em>the</em><em> </em><em>same</em><em> </em><em>variables</em><em> </em>

<em>8x</em><em> </em><em>+</em><em> </em><em>x</em><em> </em><em>+</em><em> </em><em>x</em><em> </em>

<em>*</em><em>those</em><em> </em><em>x</em><em> </em><em>have</em><em> </em><em>1</em><em> </em><em>coefficient</em><em> </em><em>each</em><em>.</em><em> </em>

<em>it</em><em> </em><em>will</em><em> </em><em>be</em><em> </em><em>8x</em><em>+</em><em>1x</em><em>+</em><em>1x</em><em> </em><em>=</em><em> </em><em>10x</em><em> </em><em>then</em><em> </em><em>–</em><em>2y</em>

<em>10x</em><em>–</em><em>2y</em><em>.</em>

Hope it helps :)

8 0
3 years ago
Read 2 more answers
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