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Talja [164]
3 years ago
15

1. 3(2x - 5) = 55 - 4x

Mathematics
2 answers:
attashe74 [19]3 years ago
4 0

Answer:

7

Step-by-step explanation:

6x-15=55-4x

combining similar terms

6x+4x=55+15

10x=70

dividing both sides by 10

x=7

marshall27 [118]3 years ago
4 0

Answer: X = 7

Step-by-step explanation:

3(2x - 5) = 55 - 4x

Open bracket

6x - 15 = 55 - 4x

Collect like terms

6x + 4x = 55 + 15

10x = 70

x = 70/10

x = 7

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Y'all is so nice too help me I really appreciate it help me thanks<br> plz i need help
butalik [34]
You can multiply 2/3 by 2/2 to get 4/6. This means that x=4!!!

Hope this helps :)
8 0
3 years ago
4) 20x + 16 y=-8<br> - 10x - 8y=8
mojhsa [17]

Answer:

No solution unless you put in the wrong equations

Step-by-step explanation:

7 0
3 years ago
Stephen spends 10% of his salary on food, 15% of it on transportation, and saves the remaining 2000. what is his salary?
Ber [7]

Answer:

His salary is $2666.68

Step-by-step explanation:

First add the percent of the costs.       10% + 15% = 25%

Then subtract 25% from 100% to find the percentage that 2,000 is of the total salary.                                                           100% - 25% = 75%

$2,000 is 75% of the total salary. Divide 2,000 by three to find the amount of money 25% of the salary is. ( 75% is 3/4 of 100)                                                         2,000 divided by 3 = $666.67

25% of the salary is $666.67

Multiple that by 4 and you get the total salary.

666.67•4= $2666.68

Are you sure those were all the correct numbers because that was not a very nice number at the end there lol but that answer is correct with the numbers you gave me.


5 0
4 years ago
EASY AND BRAINLIEST!!!!
nirvana33 [79]

Answer:

6x-4y=15

Step-by-step explanation:

step 1

Find the slope of line L

we know that

If two lines are perpendicular, then their slopes are opposite reciprocal

In this problem we have

2x + 3y = 5

Isolate the variable y

3y = -2x+5\\y=-(2/3)x+(5/3)

The slope of the given line is

m=-2/3

so

The slope of the Line L is

m=3/2

step 2

Find the x-intercept of the line

2x + 3y = 5

The x-intercept is the value of x when the value of y is equal to zero

so

For y=0

2x + 3(0) = 5\\x=5/2

The x-intercept is the point (5/2,0)

step 3

Find the equation of the line L

Find the equation of the line in point slope form

y-y1=m(x-x1)

we have

m=3/2\\point (5/2,0)

substitute

y-0=(3/2)(x-5/2)

y=(3/2)x-(15/4)

Convert to standard form

AX +By+C

where

A is a positive integer

B and C are integers

Multiply both sides by 4

4y=6x-15\\6x-4y=15

3 0
4 years ago
PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS!
Lapatulllka [165]

Answer:

20.5

Step-by-step explanation:

the formula for the midpoint = (x1 + x2)/2, (y1 + y2)/2.

put in x and y for

(-14+27)/2,(0+0)/2

13/2,0/2

6.5,0

so make a new line from (6.5,0) to (27,0)

27-6.5=20.5

5 0
3 years ago
Read 2 more answers
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