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
aev [14]
3 years ago
7

the sum of three numbers is 131. the third number is 4 times the first. the second number is 5 more than the first. what are the

numbers
Mathematics
1 answer:
Sphinxa [80]3 years ago
4 0

Step-by-step explanation:

let the numbers are:

a, b, and c

the equation would be:

a+b+c = 131

c = 4a

b = a+5

=>

a + a+5 +4a = 131

6a +5 = 131

6a = 131-5

6a = 126

a= 126/6

a = 21

b = a+5 = 21+5

b = 26

c = 4a = 4(21)

c = 84

You might be interested in
I really really need help with this please.
11111nata11111 [884]
<span>The number of ancestors going back through the <em>5th generation</em>, including Tle-nle and counting <em>Tle-nle as the 1st generation</em> is: 

= 1 + 3 + 3^2 + 3^3 + 3^4
= (3^5 - 1) / (3 - 1)
= 242 / 2
= 121 

Since we included </span>Tle-nle as the 1st generation, we will only compute up to the 4th power. If it is until the 6th generation, add 3^5 to the equation.
8 0
3 years ago
What’s another fraction for 4/10
kaheart [24]

Answer:

another fractioon for 4/10 would be 2/5 or 8/20

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the solution to the equation?<br> 3 + V3x – 5= x
Lostsunrise [7]

Answer: (D) 7

Step-by-step explanation:

8 0
3 years ago
Find the absolute maximum and minimum values of the following function on the given interval. If there are multiple points in a
Bond [772]

f(x)=3\sin x+3\cos x\implies f'(x)=3\cos x-3\sin x

f has critical points where f'=0:

3\cos x-3\sin x=0\implies\cos x=\sin x\implies\tan x=1\implies x=\pm\dfrac\pi4+2n\pi

where n is any integer. We get solutions in the interval \left[0,\frac\pi3\right] for n=0, for which x=\frac\pi4.

At this critical point, we have f\left(\frac\pi4\right)=3\sqrt2\approx4.243.

At the endpoints of the given interval, we have f(0)=3 and f\left(\frac\pi3\right)=\frac{3+3\sqrt3}2\approx4.098.

So we have the extreme values

\max\limits_{x\in\left[0,\frac\pi3\right]}f=3\sqrt2

\min\limits_{x\in\left[0,\frac\pi3\right]}f=3

8 0
3 years ago
Please i'm so dumb subtract 52 feet 2 inches - 2 1/4
vaieri [72.5K]

If I understand correctly the answer is 49 feet 11 inches

8 0
3 years ago
Other questions:
  • There are two possible triangles with the measures given for triangle ABC. b = 20.2, c = 18.3, C = 38°
    11·2 answers
  • the length of a rectangle is 7 yd more than 5 times the width. the perimeter is 150 yd. find the length and the width.
    10·1 answer
  • mateo has 6.5 cups of sugar. how many batches of cookies can he make if each batch requires 3/4 cups of sugar?
    10·2 answers
  • What is the inverse of the function f(x) = 2x – 10? A. h(x) = 2x - 5
    7·1 answer
  • the vertices of triangle DEF are D(-7,10) E (-5,5) and F (-8,1) if triangle DEF is translated to the right 12 units what are the
    12·1 answer
  • Need help soon as possible taking a test
    8·1 answer
  • Pls help !! Due in 30 minutes !! Seiko takes pottery classes from two different studios. Paula's Pottery charges $18 for clay an
    10·1 answer
  • Two trains leave the station at the same time, one traveling due east, the other due west. After 46 minutes, they are 140 miles
    5·1 answer
  • Let f(x) = x-4 and g(x) = (x-4)^3
    5·1 answer
  • Please help fast. will mark brainliest
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!