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
pshichka [43]
3 years ago
12

10(2x+-15)= 40x=30 how do i solve this?

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
7 0

Answer:

if you meant 40x-30 the answer is 9

Step-by-step explanation:

you have to distribute the 10x to 2x and 15

this gives you 20x+150=40x-30

then subtracted 20x from both sides and then add 30 to both sides

you should be left with 180=20x

divide 20 into 180

x=9

You might be interested in
Solve the equation m2 + 6m = –4 using the quadratic formula. A. m = –3±√ 5 B. m = 5±√ 3 C. m = 3±√ 5 D. m = –5±√ 3
USPshnik [31]

Answer:  m = –3±√ 5

m=

−b±√b2−4ac

2a

m=

−(6)±√(6)2−4(1)(4)

2(1)

m=

−6±√20

2

m=−3+√5 or m=−3−√5

7 0
2 years ago
12 lb13 oz + 6 lb11 oz
max2010maxim [7]

Answer:

19 lbs and 8 oz

Step-by-step explanation:

12 + 6 = 18   13 + 11 = 24     24 oz = 1 lb and 8 oz   1 lb and 8 oz + 18 = 19 lbs and 8 oz

6 0
3 years ago
bought 2 pounds of apples at the supermarket. how many kilograms of apples did she buy?? Please Help!!!
MrRissso [65]
2 pounds = 0.907 kilogram according to Google
3 0
3 years ago
Eliza falls asleep at 9:35 pm and wakes up 8 hours and 45 miunets later, what time does she wake uo
alexdok [17]

Answer: Eliza wakes up at 6:25 A.M.

Step-by-step explanation:

What I did is first used the 45 minutes to make the time 10:00 P.M. which leaves you with 8 hours and 25 minutes, then i added the 8 hours onto 10:00 P.M. which leaves you at 6:00 A.M. with 25 minutes left, then you add the 25 minutes onto 6:00 A.M. which puts it at 6:25 A.M.

6 0
3 years ago
At the beginning of an environmental study, a forest covered an area of 1500km^2. Since then, the area has decreased by 6.3% eac
geniusboy [140]

The <em><u>correct answer</u></em> is:

y=1500(0.937)^t

Explanation:

An exponential function is of the form

y=a\times b^x, where a is the initial population, b is 1 plus the amount of yearly change, and x is the number of years.

For our problem, a, the initial population, is 1500.

The yearly change is 6.3%; 6.3% = 6.3/100 = 0.063.  Since it is decreasing, this is negative; 1+(-0.063) = 0.937.

We use t as the number of years.

This gives us

y=1500(0.937)^t

3 0
3 years ago
Other questions:
  • $18.99 CD; 15% discount
    10·1 answer
  • Write the set that represents the set of people surveyed who subscribe to at least one of the two news sources given.
    11·1 answer
  • Helppp!!!! please!!!
    15·1 answer
  • 14- =5+4 <br>SECOND GRADE MATH HELP PLS​
    14·2 answers
  • You roll a fair 6-sided die. What is the P(Not 1) *
    9·1 answer
  • 12 is what percent of 14?
    7·1 answer
  • −15(x−4)=−2 the 15 is one fifth pls help
    10·1 answer
  • Mplify the expression:<br>| 5q + 84 - 94 + 84<br>​
    8·1 answer
  • X^2 - x -12 &lt; 0
    8·1 answer
  • A pot contains 25 ounces of soil. You use 4 1/4 ounces of soil to plant 1 herb. Is there enough soil in the pot to plant 5 herbs
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!