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
Lapatulllka [165]
3 years ago
5

-9x + 15 = -48 ?????????????????????/

Mathematics
1 answer:
Komok [63]3 years ago
8 0

Answer:

x=7

Step-by-step explanation:

You might be interested in
What is 1 4/10 + 2 2/10
telo118 [61]
1+2=3. 4/10+2/10=6/10. 3+ 6/10=3 6/10
6 0
3 years ago
Solve the system by substitution<br> 10x=y<br><br> 2x+y=-24
masha68 [24]

Answer: x=-2

Y= -20

Step-by-step explanation

You replace the y in the second equation with 10x. This is because it says 10x=y

2x+10x=12x so you put that

12x=-24

To get x by its self you divide by 12.

-24 divided by 12 is -2.

Now you plug in -2 to either equation as y. I chose the first one because it's easier.

10(-2)=y

-20=y

8 0
3 years ago
Need help with theses questions please
Olin [163]
Hello:
3x²+5x+2=0
delta = (5)²-4(3)(2)=1
x =( -5 <span>±1)/6
x= -2/3 or x=-1

t4-81=(t²)² -9² = (t²-9)(t²+9) =(t-3)(t+3)(t²+9)....(answer B)</span>
7 0
3 years ago
Find the average rate of horizontal change of the ball the 1.6 sec.
djverab [1.8K]

a)

the average speed, well it does 10 ft in 1.6 secs, so is simply their quotient, 10/1.6 = 6.25 ft/s on average.


b)

over the horizontal, well, it covered horizontally 9.25 ft in those 1.6 secs, so their quotient is 9.25/1.6 = 5.78125 ft/s on average.


c)

we don't know the vertical distance, but


\bf \textit{using the pythagorean theorem}&#10;\\\\&#10;c^2=a^2+b^2\implies \sqrt{c^2-a^2}=b&#10;\qquad&#10;\begin{cases}&#10;c=\stackrel{10}{hypotenuse}\\&#10;a=\stackrel{9.25}{adjacent}\\&#10;b=opposite\\&#10;\end{cases}&#10;\\\\\\&#10;\sqrt{10^2-9.25^2}=b\implies \sqrt{14.4375}=b\implies 3.8\approx b


so, it covered vertically about 3.8 ft in those 1.6 secs, so then 3.8/1.6 = 2.375 ft/s on average

7 0
3 years ago
Read 2 more answers
Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.33 and a standard deviation of 1.5. U
never [62]

"97.5" will be the American women's % having their shoe sizes that are no more than 11.33.

Given values are:

  • Mean = 8.33
  • Standard deviation = 1.5

Now,

= 8.33 + 2\times 1.5

= 11.33 (2 above Standard deviation)

→ The data values are between 8.33 and 11.33,

= \frac{95}{2}

= 47.5 (%)

→ The data value below 11.33,

= 50 (%)

hence,

→ The percentage of American women will be:

= 50+47.5

= 97.5 (%)

Thus the above answer is appropriate.

Learn more about empirical rule here:

brainly.com/question/18529739

8 0
3 years ago
Other questions:
  • Kiran got 99 marks in Math, 69 mark in English and 91 in science. Another student Surya got 92 marks in Maths 33 in English and
    11·1 answer
  • If you go on a road trip of 270 miles in the mountains and 7/ 10 of the trip is downhill, how many miles of the trip are not dow
    12·2 answers
  • Cedric orders at least 30 bottles of styling gel per month for his hair care business. The supplier charges $3 per pint bottle p
    7·2 answers
  • 20 POINTS,, PLEASE HELP!!!
    9·2 answers
  • Anyone know what this is
    15·2 answers
  • Find the surface area of a sphere in terms of pi given the radius of 25 inches
    5·1 answer
  • The volume V of a cube with sides of length x inches is changing with respect to time t (in seconds). When the sides of the cube
    5·1 answer
  • Help guysss find the slope of the line
    6·2 answers
  • Simita has 25 coins, consisting of 10c and 5c, which total $2.25. how many of each does she have?​
    8·1 answer
  • Araba bought an electric Cooker for 540.00 ghanacedis at a discount of 10%.Find the actual price of the eletric cooker.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!