A man is37years old and his child is eight.how many years ago was the product of their ages 96 as in quadratic equation step by step​

Answers

Answer 1

Answer:

5 years

Step-by-step explanation:

Let x be the unknown numer of years ago when the product of the man and his child's age was 96.

》 x years ago, the man's age = 37 - x

the child's age = 8 - x

(37 - x)(8 - x) = 96

296 - 37x - 8x + x² = 96

x² - 45x - 296 - 96 = 0

x² - 45x - 200 = 0

x² - 5x - 40x - 200 = 0

x(x - 5) -40(x - 5) = 0

(x - 5)(x - 40) = 0

x = 5 years ago or x = 40 years ago

but x = 40 > son's present age.

Thus, x = 5.

Therefore, 5 years ago the product of the ages of the man and his child was 96.


Related Questions

Marta Collected 363 cans die go collected 295 cans how many cans marta And diego Collect

Answers

Answer:

658

Step-by-step explanation:

I will crown you! And extra points! Just need some help on this question.

Answers

Answer:

∠LMP = 77

∠NMP = 103

Step-by-step explanation:

to find the measure of ∠LMP and ∠NMP

we know that ∠LMN is a straight line so that will be 180 degrees

so you can say that

∠LMP + ∠NMP = 180

(-16x +13) + (-20x +23)  = 180

-16x +13 -20x + 23  = 180

-36x + 36 = 180

-36x = 180-36

-36x = 144

x = 144/-36

x = -4

∠LMP = (-16x +13)

          = ( -16 (-4) + 13)

         = ( 64 + 13)

         = 77

∠LMP = 77

∠NMP = (-20x +23)

          =  (-20 (-4) + 23)

          = 80 + 23

          = 103

∠NMP = 103

what is 2/3 to the -3 power

Answers

Answer:

[tex]\frac{27}{8}[/tex]

Step-by-step explanation:

2/3 to the 3rd power ([tex]\frac{2}{3} *\frac{2}{3}* \frac{2}{3}[/tex]) is [tex]\frac{8}{27}[/tex]

Since the power is negative, just use the reciprocal (flip the fraction)

I hope this helps!

pls ❤ and mark brainliest pls!

Answer:

[tex]\frac{27}{8}[/tex]

Step-by-step explanation:

[tex](\frac{2}{3})^3=\frac{8}{27}[/tex]

[tex]\frac{1}{\frac{8}{27} } =\frac{27}{8}[/tex]

Question 13 of 23
If f(x) = 3x - 15, what is f(4)?
A. 3
O B. -8
O C. 12
O D. -3

Answers

Answer:

f(4) = 3×4 - 15

f(4) = 12-15 = -3

Answer : D. -3

...........

Answer:

D.-3

Step-by-step explanation:

f(4)=3•4-15

=12-15

=-3

Parallel lines j and k are cut by transvesal t . Which statement is true about ∠2 and ∠6

Answers

Answer:

angle 1 and angle 7 are alternate exterior angles.

angle 1 and angle 5 are corresponding angles.

angle 3 and angle 8 are same side interior angles.

angle 2 and angle 8 are alternate interior angles.

Step-by-step explanation:

( show your work ) Find the total cost of 6 puppies if each pull-ups coast $250

Answers

Answer: $1500

Step-by-step explanation:

Given information

Number of puppies = 6

Cost of each puppy = $250

Given expression deducted from the question

Total cost = number of puppies × cost of each

Substitute values into the expression

Total cost = 6 × 250

Simplify by multiplication

Total cost = [tex]\boxed{1500}[/tex]

Hope this helps!! :)

Please let me know if you have any questions

Answer $1500
Work
If one Cost $250 , and we need to fine the total of 6 puppies. So it 250 times 6 , then you will get the answer 1500
The total cost of 6 puppies is $1500

researcher investigated whether the type of distraction (text message, app notification, no distraction) during a brief lecture influenced memory. The experiment was conducted with college students aged 18-23. Identify the independent variable(s).

Answers

Answer:

The independent variables are the students.

Step-by-step explanation:

It is the students because nothing else is independent, everything else is either dependent or not important to the question.

7k -2(3k + 1) - 9
Y’all I need help.

Answers

Answer:

k - 11

Step-by-step explanation:

7k - 2(3k +1) - 9

So first we start by multiplying out the brackets. Multiply 2 by 3k and 1 then it becomes:

7k - 6k + 2 - 9

Then collect like terms subtract 6k from 7k and 9 from 2:

k - 11

HOPE THIS HELPED

I just need help with #15 … can someone please help me

Answers

Answer:

450

Udjdjdjdndkdkdkdjejeud

27. In the figure, AFJD, BGFE, CHGA, DIHB and EJIC are straight lines.
Find a + b + C + d + e.






Answers

It is just asking to find the sum of interior angles
So follow this rule 180(n-2)
180(5-2)
180(3)= 540
So in another words: a+b+c+d+e=540

Find the measure of the angle indicated in bold (7x + 10)

Also can you explain how you got the answer

Answers

Answer:

80°

Step-by-step explanation:

8x = 7x + 10

They are alternate(different sides of the intersecting or transversal line) interior(inside the two parallel lines)angles

alternate interior angles

8x = 7x + 10

x = 10

7(10) + 10 = 80

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

I need help I will give brainiest if correct plz solve all of these two questions

Answers

Answer:

1. You should mix 5 cups of yellow paint with 1 cup of blue paint. The table shows that the ratio is 1:5 (blue:yellow) so 1 cup of blue paint means you need 5 cups of yellow paint.

2. Using the same ratio (1:5), you can multiply both numbers by any number and get the same shade of green.

5 cups of blue paint will need 25 cups of yellow paint.

(1 x 5 = 5  :   5 x 5 = 25)

Step-by-step explanation:

HELP ME PLEASE:((
Question 1 of 10
Which of the following is most likely the next step in the series?

Answers

Answer: it should be A

Step-by-step explanation: just follow the pattern

The answer should be A because of the pattern

0.582 times 10 what is value of the 2​

Answers

Answer:

5.82

Step-by-step explanation:

0.582 x 10

=> Shift the decimal place by 1

=> 5.82

The required simplified value of the product is 5.82 and the value of 2 in the expression is 0.01 times.

To determine the value of 2 in the product of 0.582 times 10.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
According to the question,
Product = 10 * 0.582
Product = 5.82,
Where 2 is located at the thousandth place,
So, the value of 2 in 5.82 is 0.01 times of 2.

Thus, the required simplified value of the product is 5.82 and the value of 2 in the expression is 0.01 times.

Learn more about simplification here: https://brainly.com/question/12501526

#SPJ2


please help me solve this
(3/4)^2+1/8+1/4•3/2= ?

Answers

Answer:

This was a little tricky but the answer is 2 7/16

Step-by-step explanation:

15

16

+

3

2

=  

15

16

+

3 × 8

2 × 8

=  

15

16

+

24

16

=  

15 + 24

16

=  

39

16

=  

2 7/16

I just need help with #16 … can someone please help me

Answers

Answer: it goes up like 10,20,30,40

Step-by-step explanation:

a bank account balance for an account with an initial deposit of p dollars earns interest at an annual rate of r . the amount of money in the account after n years is described using the following expression p (1+r)n what effect if any does decreasing the value of r have on the amount of money after n years?

Answers

Answer:

Step-by-step explanation:

For the same exponent n and 1 < a < b we have

[tex]a^n < b^n[/tex]

Now if we decrease the r the value then 1 + r will also decrease.

If follows that the amount of money after n years will also decrease.

Need help on this hm THE MIDDLE ONE

Answers

Answer:

{0, 1, -1}

Step-by-step explanation:

2x - 6 = 3x + 1 - x - 7

2x - 6 = 2x - 6

0 gives you -6 = -6

1 gives you -4 = -4

-1 gives you -8 = -8

{ALGEBRA} What’s the domain and range of these graphs?

Answers

I’ve attached my work…
I fixed your first and second graph
And filled in the blanks
Hope this helps!

Will award Brainliest!

Answers

Answer:

RPO = 30

STO = 20

POR = 130

Step-by-step explanation:

TOS Obtuse because its larger than 90 = 130 degree

Answer:

A

Step-by-step explanation:

Becausd angle TPR is ninety degrees which is 90degrees

y = 2/3 -5 GRAPHED
I WILL MARK BRAINLIEST

Answers

Answer:

Step-by-step explanation:

Hope this helps

Identify the rule for the following pattern: 4, 24, 144...

Answers

Answer:

Multiply By 6

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

The common ratio is 6 ie dividing the second term by the first term or the third term by the second term ie

24 ÷ 4 = 6

144 ÷ 24 = 6

And so on....

evaluate the expression

Answers

Answer:

-213

Step-by-step explanation:

Hi there!

[tex]3|x+y|^2-(xy)^2[/tex]

Replace x with 3 and y with -5

[tex]= 3|3+(-5)|^2-[(3)(-5)]^2\\= 3|3-5|^2-(-15)^2\\= 3(2)^2-225\\= 3(4)-225\\= 12-225\\= -213[/tex]

I hope this helps!

I’m struggling on this one pls help

Answers

Answer:

1:2

Step-by-step explanation:

11 triangles : 22 hearts

= 1:2

HOW MANY DEGREES IN A SUPPLEMENTARY ANGLE???

Answers

Answer:

180 degrees

Step-by-step explanation:

There are 180 degrees in a supplementary angle (straight line)

(b+a)^2 ÷4 ; use a=-2, and b=4

Answers

Answer:

1

Step-by-step explanation:

(b + a)² ÷ 4 when a = -2 and b = 4

~Substitute

(4 + (-2))² ÷ 4

~Simplify

2² ÷ 4

4 ÷ 4

1

Best of Luck!

Answer:

1

Step-by-step explanation:

it is above in the photo.

Malcom has $638.54 in his checking account. He must maintain a $500 balance to avoid a fee. He wrote a check for 159.50 today. Write an inequality that would be used to solve for the LEAST amount of money he needed to deposit to avoid a fee.
(9th grade Algebra 1)

Answers

The inequality that would be used to solve for the LEAST amount of money he needed to deposit to avoid a fee is 638.54 - 159.50 + x ≥ $500

The given parameters:

initial amount of money in Malcom's account = $638.54

a constant balance to be maintained to avoid a fee = $500

amount to be withdrawn today = $159.50

To find:

inequality that would be used to solve for the LEAST amount of money he needed to deposit to avoid a fee

Let the LEAST amount = x

Here are basic things to note in order to form the equation:

The money going into the account must be addedThe amount to be withdrawn will be subtracted Finally, the total amount must be greater or equal to  $500

Considering the above explanation, the inequality becomes;

638.54 + x - 159.50 ≥ $500

Rearrange to match the given options;

638.54 - 159.50 + x ≥ $500

Thus, the inequality that would be used to solve for the LEAST amount of money he needed to deposit to avoid a fee is 638.54 - 159.50 + x ≥ $500

Learn more here: https://brainly.com/question/22208743

Writing equations in standard form:

Hi I need help with writing equations in standard form using points. The points are (4,5) and (-3,-1) I already found the slope which is 6/7 but I don’t know how to do the point slope form. This is the slope form if you don’t know:
Y-y1=m(x-x1)

Answers

You have already done half of it. Now substitute for x1 = 4 and y = 5
y - 5 = 6/7(x - 4)
Multiply everything by 7 to remove fractions
7y - 35 = 6(x - 4)
7y - 35 = 6x - 24
-6x + 7y = -24 + 35
-6x + 7y = 11

Some people prefer a positive number in front of x so multiply by -1
6x - 7y = -11

You can check the answer by testing it works for both of the original points
6x4 - 7x5 = 24 - 35 = -11 true
6x-3 - 7x-1 = -18 - -7 = -11 true

Ms. Johnson bought an area rug for her den. The perimeter is 30 feet. The width of the rug is
2yards What is the area of Ms. Johnson's rug in square feet and square yards?
in both feet and yards.

Answers

I believe it should be 54 square feet and 18 square yards

Answer:

6 sq yards, 54 sq feet

Step-by-step explanation:

30/3 = 10, 10 - 4 = 6, 6/2 = 3, 3 * 2 = 6

30/3 since we are calculating yards(3 ft = 1 yard), 10 -4 since 2 sides have the width of 2 yards. 6/2 since there is two sides left.

Basically the same thing for sq feet.

anyone know this question: 16) -8(-21 - 2) - 6​

Answers

Answer:178

Step-by-step explanation:

distribute, multiply -8 with - 21 and -2 . that would get you 168 + 16 - 6. add the 168 and 16, it equals 184, then subtracts it with a 6.

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