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Elan Coil [88]
3 years ago
5

In algebra, we use a(n) __to represent a variable. Answer here

Mathematics
1 answer:
Vlada [557]3 years ago
3 0

Answer:

x or another letter

Step-by-step explanation:

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Given the figure below, find the values of x and z.<br> (8x – 20)<br> (14x – 20)
Gnesinka [82]

Answer:

Problem #1:  x = 2.5

Problem #2:  x = 10/7

Step-by-step explanation:

Step 1:  Find the value of x in (8x - 20)

8x - 20 = 0

<u>Add 20 to both sides</u>

8x - 20 + 20 = 0 + 20

<em>8x = 20</em>

<em />

<u>Divide both sides by 8</u>

8x / 8 = 20 / 8

<em>x = 2.5</em>

<em />

Answer:  x = 2.5

<em />

Step 2:  Find the value of x in (14x - 20)

14x - 20 = 0

<u>Add 20 to both sides</u>

14x - 20 + 20 = 0 + 20

<em>14x = 20</em>

<em />

<u>Divide both sides by 14</u>

14x / 14 = 20 / 14

<em>x = 10/7</em>

<em />

Answer:  x = 10/7

6 0
3 years ago
Dropping less than two inches per mile after emerging from the mountains, a river drains into the ocean. One days discharge at i
Ulleksa [173]

Answer:

8000 gallons/household per month

Step-by-step explanation:

Given that the discharge of 4.8 trillion gallons could supply country A households in 6 months, find for a single month.

Divide the discharge (4.8 trillion gallons) by 6

4.8/6 =0.8 trillion gallons supplied to country,s households in 1 month

To find usage per household, divide the supply per month by the number of households

=0.8 × 1000,000,000,000 gallons/100,000,000 households

=0.8×10,000 gallons/household

=8000 gallons/household per month

7 0
3 years ago
Solve the problem 5x-8&lt;7x-4
kumpel [21]

Answer:

x>-2

Step-by-step explanation:

5x-7x<-4+8

-2x<4

x>-2

5 0
3 years ago
A tv normally sells for 320 this week its on sale at 60% off the normal price what is sale price
Sloan [31]

Answer:

$128

Step-by-step explanation:

60% off of the regular price of $320 would indicate the sale price of $128

6 0
3 years ago
Show work Help this is the last thing for mayj
Jet001 [13]
1.2 or 1 1/5

3/5 is 0.6 in fraction form! I added 0.6 + 0.6 which equals 1.2

if the answer is needed to be in fraction form, the answer is 1 1/5. have a great day! :-)
8 0
3 years ago
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