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
Marat540 [252]
3 years ago
5

What is the answer for -3-(a-2)=7a+15

Mathematics
1 answer:
ale4655 [162]3 years ago
7 0

Answer:

-5.25

Step-by-step explanation:

-3(-a+2)=7a+15

=>3a-6=7a+15

=>-15-6=7a-3a

=>-21=4a

=>a=-21/4=-5.25

hope this helps please mark as brainliest:)

You might be interested in
Trish takes out a furniture loan of $5500 and a simple interest rate of 6% per year which of the following is closest to the amo
Step2247 [10]

Answer:

F

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 6%/100 = 0.06 per year,

then, solving our equation

I = 5500 × 0.06 × 2.5 = 825

I = $ 825.00

The simple interest accumulated

on a principal of $ 5,500.00

at a rate of 6% per year

for 2.5 years is $ 825.00.

3 0
3 years ago
Choose the scatter plot that shows a negative correlation.
Alenkinab [10]

Negative correlation between two variables means when x is increasing but y is decreasing or vice versa.

First graph of suffered animals and children shows a positive slope which means if age of child increasing then numbers of suffered animal is also increasing.So, the first graph show a positive correclation.

Second graph of survey of adults doesn't represnt any distinct relationship as the data scattered randomly everywhere in the graph. So, it's showsa very week correlation.

Third graph of speed and MPG shows a negative slope as speed is increasing then MPG is decreasing. So, the third graph (speed and MPG) shows a negative correlation.

4 0
3 years ago
Read 2 more answers
A particle moves along the curve y = 5x^2 – 1 in such a way that the y value is decreasing at the rate of 2 units per second. At
Shtirlitz [24]

Answer:

The correct option is;

Increasing one fifth unit/sec

Step-by-step explanation:

The equation that gives the curve of the particle of the particle is y = 5·x² - 1

The rate of decrease of the y value dy/dt = 2 units per second

We have;

dy/dx = dy/dt × dt/dx

dy/dx = 10·x

dy/dt = 2 units/sec

dt/dx = (dy/dx)/(dy/dt)

dx/dt = dy/dt/(dy/dx) = 2 unit/sec/(10·x)

When x = 1

dx/dt = 2/(10·x) = 2 unit/sec/(10 × 1) = 1/5 unit/sec

dx/dt = 1/5 unit/sec

Therefore, x is increasing one fifth unit/sec.

8 0
3 years ago
126.4% of what number is 158?
Maksim231197 [3]
<span>126.4% of 158 = 199.712</span>
6 0
3 years ago
The simplest from ratio for 27/45
Tems11 [23]
Both 27 and 45 have the greatest common factor of 9, so divide the numerator and the denominator by 9 to get the simplest form.
27/45 = 3/5
3/5 is the simplest ratio
3 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone find the graph of the inequality
    5·1 answer
  • A father’s age is the square of his son’s age (x). In 20 years’ time the father will be 3 times as old as his son. What are the
    14·1 answer
  • In the​ report, the researchers stated that​ "the research team also​ hasn't ruled out that a common factor like genetics could
    12·1 answer
  • The population of a small town, P, as a function of time, t, in years past 1940 is given below.
    15·2 answers
  • Suppose the time to process a loan application follows a uniform distribution over the range 77 to 1515 days. What is the probab
    6·1 answer
  • I need help with 1/2x+13=9<br> im in the 8th grade btw
    7·2 answers
  • Cylinder A:diameter=7in., height=12 in<br> cylinder B:diameter=12 in.,height=7 in
    6·1 answer
  • If x=-4 and y=3 what is the value of x-3y^2<br><br>a: -13<br>b: -31<br>c: -23<br>d: -85​
    5·2 answers
  • Need math help for this.​
    5·2 answers
  • Help me answer plz lol
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!