1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dafna1 [17]
3 years ago
12

Please answer!!!!!!!!!!!!

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
6 0

Answer:

x = 14

A = 38

B = 71

C = 71

Step-by-step explanation:

3x-4 + 5x + 1 + 7x-27 = 180

15x-30 = 180

15x = 180 + 30

15x = 210

x = 210/15

x = 14

A = 3x-4 = 3(14) - 4 = 38

B = 5x + 1 = 5(14) + 1 = 70 + 1 = 71

C = 7x - 27 = 7(14) - 27 = 98-27 = 71

You might be interested in
Determine whether y varies directly with x. If so, find the constant of variation k and write the equation.
anyanavicka [17]
<span>The correct answer is that y does not vary directly with x.

Explanation<span>:
If y varies directly with x, this means that it would fit the equation y=kx for every point in the set.

For the first point, we would have 11=7k; this would mean that k=11//7.
For the second point, we would have 13=8k; this would mean that k=13/8.

Checking using proportions shows us that 11/7 does not equal 13/8:
cross multiply, and you have 11*8=7*13, or 88=91.

This is not true, so k is not a constant, and y does not vary directly with x.</span></span>
7 0
3 years ago
Read 2 more answers
Help solve for x you ant gotta solve for the other one
kvasek [131]

Answer: if my calculations are right X= -42x

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Which is the value of the expression when n=3
alekssr [168]

Answer:

n=3

Step-by-step explanation:

7 0
3 years ago
Damien deposited $250 in an account that earned 3.75% interest compounded annually. He did not make additional deposits or withd
Vikentia [17]

Answer:

$289.66

Step-by-step explanation:

A=P(1+r)^t

P=250

r= .0375

t= 4

A=250(1+.0375)^4

A= 289.66

5 0
3 years ago
On Monday, a company stock closed at a price of $30.80 per share. On Tuesday, it increased by $1.20 per share. On Wednesday, it
BARSIC [14]

The net change in stock from Monday to Friday is $ 3.2956.

Step-by-step explanation:

Given,

Price of stock on Monday = $ 30.80

On Tuesday, it increased by $1.20 per share.

On Wednesday, it fell by 6.25%

On Thursday, it fell by 4%

On Friday, it increased by 2.5%

To find the net change from Monday to Friday.

Formula:

If the value increased by a% in x, the value will be = x×\frac{(100+a)}{100}

If the value decreased by a% in x, the value will be = x×\frac{(100-a)}{100}

Solution:

Price of stock on Monday = $ 30.80

Price of stock on Tuesday = $ 30.80×1.20 = $ 36.96

Price of stock on Wednesday = $ 36.96×\frac{(100-6.25)}{100}

= $ 34.65

Price of stock on Thursday = $ 34.65×\frac{(100-4)}{100}

= $ 33.264

Price of stock on Friday = $ 33.264×\frac{(100+2.5)}{100}

= $ 34.0956

Hence,

The net change in stock from Monday to Friday is = $(34.0956-30.80)

= $ 3.2956

7 0
4 years ago
Read 2 more answers
Other questions:
  • If a number is added yo the numerator of 12/43 and twice the number is added to the denominator of 12/43 the resuliting fraction
    14·2 answers
  • Need help!! ASAP!! Geometry
    15·1 answer
  • What is the size of angle c?
    11·1 answer
  • A 13-foot ladder is leaning against a building, forming a right triangle. The height where the ladder touches the building is se
    15·1 answer
  • You earn $35 for washing 7 cars. How much do you earn for washing 4 cars?
    12·2 answers
  • Please help me with this!!!!
    9·1 answer
  • What is the distance between -9 and -1 on a number line ?
    7·1 answer
  • Determine the approximate value of angle A.​
    15·2 answers
  • What song has a slower tempo??<br><br>A)Death bed<br><br>B)Godzilla
    8·1 answer
  • Choose the angle which is represented by the name.<br><br> RUN and NUG
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!