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
nadya68 [22]
3 years ago
13

IMPORTANT HELP HURRY

Mathematics
1 answer:
Zanzabum3 years ago
6 0
Let Bea = x
Therefore Andrew = x + 2
Chris = x - 3

Andrew * Chris = 66
(x + 2)(x - 3) = 66 Remove the brackets.
x^2 + 2x  - 3x - 6 = 66
x^2 - x - 6 = 66 Subtract 66 from both sides.
x^2 - x - 72 = 0
(x - 9)(x + 8) = 0
Find the possible values of Bea's age

x - 9 = 0
x = 9 That value works. She can be plus 9 years old.

x + 8 = 0
x = - 8. There's no way she can be - 8 years old
  
So Bea is 9. 
9 <<<<<< Answer
You might be interested in
The function p(x) is an odd degree polynomial with a negative leading coefficient. If q(x) = x3 + 5x2 - 9x - 45, which statement
saul85 [17]

Answer:

As x approaches negative infinity, p(x) approaches positive infinity and q(x) approaches negative infinity.

Step-by-step explanation:

The order of the polynomial and the sign of the leading coefficient will let us find the correct answer easily,

If you get a negative number (such as negative infinity) and you take it to an odd power, (for example 3), you will still get a negative number.

As q(x) has a positive leading coefficient, this means that as x approaches negative infinity, q(x)  will approach too negative infinity.

Since p(x) has an odd degree, but negative leading coefficient,

(-)*(-) = +

And this means that p(x) approaches positive infinity

4 0
2 years ago
Hurry please!
Kryger [21]

Answer:

We have the equation of the line as : 4x+2y=12

Step-by-step explanation:

Now 4x+2y=12

=> 2y = 12 - 4x

=> y = 6 - 2x

A line with a slope m and y-intercept c can be written as y = mx + c

In the case of y = -2x -...

3 0
2 years ago
If f(x) = 4 – x2 and g(x) = 6x, which expression is equivalent to (g – f)(3)?
Llana [10]
F(x) = -x² + 4
g(x) = 6x

(g - f)(3) = 6(3) - (-(3)² + 4)
(g - f)(3) = 18 - (-9 + 4)
(g - f)(3) = 18 - (-5)
(g - f)(3) = 18 + 5
(g - f)(3) = 23
<span>
</span>
5 0
2 years ago
Chandra has $36.25 in dimes and quarters If she has 250 coins in total, hwo many
vladimir2022 [97]

Answer:

175 dimes and 75 quarters

Step-by-step explanation:

Make a system of equations, where d is the number of dimes and q is the number of quarters:

d + q = 250

0.1d + 0.25q = 36.25

Solve by elimination by multiplying the top equation by -0.1:

-0.1d - 0.1q = -25

0.1d + 0.25q = 36.25

0.15q = 11.25

q = 75

Then, plug in 75 as q into one of the equations to solve for d:

d + q = 250

d + 75 = 250

d = 175

So, there are 175 dimes and 75 quarters

7 0
2 years ago
Read 2 more answers
What shape is similar to the original shape
Yuri [45]

Answer c

Step-by-step explanation:

they have to be equivalent

8 0
2 years ago
Other questions:
  • What is 2.03_2.021 greater than less then or equal to !?
    14·2 answers
  • As far as I know, the answer should be 100. That's not even a choice. Can anyone help me? If I can figure out how I'll give brai
    14·1 answer
  • Mike needs to paint several rooms in his house. He knows that the larger the rooms are, the more paint he will need.
    10·1 answer
  • Find the greatest common factor whats 24 and 30
    12·1 answer
  • 38 + 7k=8(k + 4)<br><br> Please help. &lt;3
    13·2 answers
  • The volume of the triangular block is 4 cubic inches.
    15·2 answers
  • If Suzannah's budget limit is $10 per month, how many text messages can she send in one month?
    10·2 answers
  • Find DE<br> 3x - 28<br> D<br> 3x - 30<br> х<br> G<br> E<br> F<br> 33
    11·1 answer
  • PLS HELP ITS TIMED
    13·1 answer
  • Maria’s dinner bill is 22.88 after tax is she wants to leave a 20% tip what will the total cost of the dinner be .
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!