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VMariaS [17]
3 years ago
12

3x + 25 = 2(4x – 10) solve step by step

Mathematics
2 answers:
Lilit [14]3 years ago
8 0
The answer is: X=9 first step is to distribute 2 into 4x and -10 then move the 8x over behind the 3x, then combine 8x and 3x together to get -5x=-20-25 combine -20 and -25 to get -45 then divide -45 by -5 to get x=9
bixtya [17]3 years ago
4 0

Answer:

x=9

Step-by-step explanation:

3x + 25 = 2(4x – 10)

3x + 25 = 8x-20

3x-8x=-20-25

-5x=-45

5x=45

x=9

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Find the value of x and y
Inessa [10]

Answer: D. x=9√3; y=18

Step-by-step explanation:

This is a 30-60-90 special triangle, where we can use the rules to find the value of x and y. (For specific explanation, please look at the attachment below)

-----------------------------------------------------------------------------------------------------

<u>X value</u>

- The shortest side of the triangle that corresponds with [x] is 9 units. This is because it is half of the larger triangle's side length.

- Using the rules, the shortest side is x, then the second short side is x√3

- Substitute value in= x√3=(9)√3=9√3

Y value

- The shortest side of the triangle that corresponds with [x] is 9 units. This is because it is half of the larger triangle's side length.

- Using the rules, the shortest side is x, then the longest side is 2x

- Substitute value in= 2x=2(9)=18

Hope this helps!! :)

Please let me know if you have any questions

3 0
3 years ago
The phone company Ringular has a monthly cellular plan where a customer pays a flat monthly fee and then a certain amount of mon
ivanzaharov [21]

Answer:

The slope is $0.35/min and it gives the cost per minute of the phone used.

Step-by-step explanation:

We can model this situation with a linear equation of the form

y =mx+b

where y is monthly cost, x is the number of minutes, b is the flat monthly fee, and m is the slope of the equation, or in our case, the amount of money charged per minute.

The slope m is

m= \dfrac{\$372.5-\$131}{990min-300min}

m = \$0.35/min,

in other words, the phone company charges $0.5 per minute.

With the slope in hand, the linear equation becomes

y =0.35x+b,

and we can find the monthly fee b from that fact that for 300 minutes the cost is $131:

\$131 = 0.35(300min) +b

b = \%26.

Therefore,

y = 0.35x+26

where the slope if the equation give the cost per minute of the phone used.

4 0
3 years ago
8 times ( 18 divides 6 )
Vika [28.1K]

Answer: 24

Step-by-step explanation: 8x3=24 in which 18 divided by 6 is 3.

6 0
3 years ago
Read 2 more answers
2s+t=r solve for t rearrange the variables
DedPeter [7]

Answer:

Step-by-step explanation:

2s + t = r

t = r - 2s

8 0
2 years ago
Eleven of 20 students in Mr. Gonzalez ‘s science class are attending the field trip. What percent best represents the portion of
antoniya [11.8K]

Answer:

%55

Step-by-step explanation:

divide both values by 2, multiply by 10 to give you a percentage


3 0
3 years ago
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