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
likoan [24]
2 years ago
12

The age of a father is 2 less than 7 times the age of his son. In 3 years, the sum of their ages will be 52. If the son’s presen

t age is s years, which equation models this situation? A. B. C. D.
Mathematics
2 answers:
Inga [223]2 years ago
8 0

The correct answer is :

( 7s - 2 ) +3+ ( s + 3 ) = 52 , or 8s + 4 = 52 .

<h3>Explanation : </h3>

Since s is the son's age , " two less than seven times " the son's age would be represented by 7s - 2 .

To represent this in 3 years , we would add 3 : ( 7s - 2 ) +3 .

In 3 years , the son's age , s , would be represented by s + 3 . We are told that the sum of these ages will be 52 ; this gives us ( 7s - 2 ) +3+ ( s + 3 ) = 52 .

To simplify this , combine like terms .

7s + s = 8s ; -2 + 3 + 3 = 4 .

This gives us 8s + 4 = 52 .

s2008m [1.1K]2 years ago
5 0

Answer:

First,

the age of the son: s

the age of the father is 2 less than 7 times the age of his son: 7s - 2

In 3 years, the sum of their ages will be 52, In 3 years, the age of the sun will

increase 3, so s+3. Also, the age of his

father also increase 3, (7s-2)+3

(s+3)+ [(7s-2)+3] = 52 is the equation.

You might be interested in
The 102nd floor of the sears tower in chicago is the highest occupied floor. it is 1,431 feet above the ground. how many yards a
melamori03 [73]
1 foot = \frac{1}{3} yard

1431 ÷ 3 = 477 yards
6 0
3 years ago
Can ya'll do my math homework too pleaseee? again I'll give brainliest and be rlly happy.
RUDIKE [14]

Answer:

1. f = -9

2. x = -7

3. x = -9

4. x = -20

5. y = 7.5

Step-by-step explanation:

Hope this helps

5 0
3 years ago
Read 2 more answers
Solve 5x^2 − 3x + 17 = 9.
Vedmedyk [2.9K]

Answer:

The roots of the equation are x = \frac{3+\sqrt{151}i}{10} and x = \frac{3-\sqrt{151}i}{10}

and there are no real roots of the equation given above

Step-by-step explanation:

To solve:

5x² − 3x + 17 = 9

or

⇒ 5x² − 3x + 17 - 9 = 0

or

⇒ 5x² − 3x + 8 = 0

Now,

the roots of the equation in the form ax² + bx + c = 0 is given as:

x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}

in the above given equation

a = 5

b = -3

c = 8

therefore,

x = \frac{-(-3)\pm\sqrt{(-3)^2-4\times5\times8}}{2\times5}

or

x = \frac{3\pm\sqrt{9-160}}{10}

or

x = \frac{3+\sqrt{-151}}{10} and x = \frac{3-\sqrt{-151}}{10}

or

x = \frac{3+\sqrt{151}i}{10} and x = \frac{3-\sqrt{151}i}{10}

here i = √(-1)

Hence,

The roots of the equation are x = \frac{3+\sqrt{151}i}{10} and x = \frac{3-\sqrt{151}i}{10}

and there are no real roots of the equation given above

7 0
2 years ago
Triangle DEF has sides of length x, x+3, and x−1. What are all the possible types of DEF?
Natalija [7]

Triangle DEF is scalene

Must click thanks and mark brainliest

6 0
3 years ago
Plzzz help i am ineeeddeddeedeededed of it!!!
Vikentia [17]
Sallys statement is always true
for example:
-6 + 2 = -4
but if I turn it around
2 - 6 = -4
same answer

-6 -6 = -12
swap around -6 - 6 = 12
same answer

again -3 + 6 = 3
and 6 - 3 = 3
6 0
3 years ago
Other questions:
  • What is the solution to –4(8 – 3x) ≥ 6x – 8?<br><br> x ≥ –4/3<br> x ≤ –4/3<br> x ≥ 4<br> x ≤ 4
    14·1 answer
  • What is the standard deviation of the data set {6, 8, 6, 11, 8, 8, 9}? round to the nearest tenth ​
    15·1 answer
  • What is the value of x in the equation 2x + 9 = 21? (4 points)
    7·1 answer
  • How could i determine the volume of an object that had an irregular shape? (i can’t measure it with a ruler)
    14·1 answer
  • PLEASE HELP 10 MIN LEFT HELP ASAP 20 POINTS
    13·2 answers
  • Help again plssssssssssssssssss
    9·2 answers
  • What is the area of this parallelogram
    9·1 answer
  • Find the slope of the line?
    10·1 answer
  • If the weight of a package is multiplied by 5/6 the result is 50 pounds. Find the weight of the package.
    15·1 answer
  • Need help please don't know the answer ​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!