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
tekilochka [14]
3 years ago
15

If 4 − 7x is 5 less than 23, what is the value of 3x ?

Mathematics
1 answer:
adelina 88 [10]3 years ago
8 0
4- 7x = 23- 5

4 - 7x = 18

-4 = -4

-7x = 14

/-7 = /-7

X = -2

3x = -6
You might be interested in
I don’t get this, can you guys help out?
Dovator [93]

Answer:

9 ÷ 3/2 = 6

21 ÷ 7/3 = 9

12/7 ÷ 2/7 = 6

4 2/3 ÷ 7/9 = 6

72/7 ÷ 8/7 = 9

4 1/2 ÷ 1/2 = 9

4 0
3 years ago
Read 2 more answers
Solve for f<br> -f +2 + 4f = 8 - 3f
Ulleksa [173]

Answer:

f=1

Step-by-step explanation:

Let start off with doing -f plus 4f which gives you 3f. The equation would now be 2+3f=8-3f. Add 3f so you can cancel out the -3f and add the 3f to the other 3f. Now your equation is 2+6f=8. Cancel out do by doing -2. (Don't forget to to it to the 8 also.) Now your equation is 6f=6. Divide 6 from both sides to get 1. (You divide because you want to get f alone.

4 0
3 years ago
Find the range of the function F(x) = the integral from 0 to x of the square root of 4-t^2 dt
ioda

Note that √(4 - t²) is defined only as long as 4 - t² ≥ 0, or -2 ≤ t ≤ 2. Then the real integral exists only if -2 ≤ x ≤ 2. (Otherwise we deal with complex numbers.)

If x = 2, then the integral corresponds to the area of a quarter-circle with radius 2. This means that the integral has a maximum value of 1/4 • π • 2² = π.

On the opposite end, if x = -2, then the integral has the same value, but the integral from 0 to -2 is equal to the negative integral from -2 to 0. So the minimum value is -π.

For all x in between, we observe that the integrand is continuous over the rest of its domain, so F(x) is continuous.

Then the range of F(x) is the interval [-π, π].

8 0
2 years ago
7x-4y=20 for y when x=3
viktelen [127]
I think it is y=-.25
7*3 - 4y = 20
21 - 4y = 20
subtract 21 from each side
- 4y = - 1
divide each side by - 4
y= -.25
6 0
3 years ago
Read 2 more answers
Find the least number between 200 and 500 which leaves a remainder of 3 in each case when divided by 8 ,10,12 and 30.
Nookie1986 [14]
Well, that means that it is 3 more than a common multipule of 8,10,12, and 30
find the lcm

8=2*2*2
10=2*5
12=2*2*3
30=2*3*5
lcm=2*2*2*3*5=120
times it by 2 to get it between 200 and 500
240
add 3
243 is da number
5 0
3 years ago
Read 2 more answers
Other questions:
  • Solve by Substitution<br> Show Steps<br> x = −5y + 4z + 1<br> x − 2y + 3z = 1<br> 2x + 3y − z = 2
    6·1 answer
  • A package wieghs 96 ounces. what is the weight of the pa kage in pounds?
    7·1 answer
  • the value of peters house has risen 20% a year for the last 3 years. if the value of peters home 3 years ago was $120,000.00, wh
    14·2 answers
  • Please help me, I don't know this one.
    5·2 answers
  • Simplify the expression (3 - 4i)(1 + 5i) - (2 - i). Show your work
    13·1 answer
  • ⚠️⚠️⚠️NO ONE HAS HELPED ME! PLEASE I Need HELP QUICK!⚠️⚠️⚠️ —complete the following punnett square, show the genotype produced b
    6·1 answer
  • A bookmark is shaped like a rectangle with a semicircle attached at both ends. The rectangle is 10 cm long and 4 cm wide. The di
    6·1 answer
  • Find the first four terms of the arithmetic sequence when a1 = 3 and d = 2.
    15·1 answer
  • Need help asap pleas and thank you .
    9·1 answer
  • Help Help help help help thanks &lt;3
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!