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
Andre45 [30]
3 years ago
13

Michael is 3 times as old as Brandon. 18 years ago, Michael was 9 times as old as Brandon

Mathematics
1 answer:
Artemon [7]3 years ago
8 0

Answer:

M=72

Step-by-step explanation:

M=3B              M-18=9(B-18)/M-18=9B-162

M-18=9B-162

-M=-18

-18=6B-162

6B=144

B=24

M=3B

M=72

You might be interested in
Answer in factored form x^2+11x+7
KATRIN_1 [288]
X² <span>+ 11x + 7

because 7 is a prime number, this doesn't factor prettily. you'll want to use the quadratic formula; if you aren't familiar with it, i'd either research it or look it up in your textbook, because it's clunky and not easily understood in this format:

(-b </span>± √((b)² - 4ac))/(2a)

in your equation x² + 11x + 7 ... a = 1, b = 11, and c = 7. what you do is you take the coefficients of every term, then plug it into your equation:
(-11 ± √((11)² - 4(1)(7))/(2(1))

not pretty, i know. but, regardless, you can simplify it:
(-11 ± √((11)² - 4(1)(7))/(2(1))
(-11 ± √(121 - 28))/2
(-11 ± √93)/2

and you can't simplify it further. -11 isn't divisible by 2, and 93 doesn't have a perfect square that you can take out from beneath the radical. the ± plus/minus symbol indicates that you have 2 answers, so you can write them out separately:

(x - (-11 - √93)/2) and (x + (-11 - √93)/2)

they look confusing, but those are your two factors. they can be simplified just slightly by changing the signs in the middle due to the -11:

(x + (11 + √93)/2) (x - (11 - √93)/2)

and how these would read, just in case the formatting is too confusing for you: x plus the fraction 11 + root 93 divided by 2. the 11s and root 93s are your numerator, 2s are your denominator.
7 0
3 years ago
1. Daniel has a piece of wire that is į
balu736 [363]

Answer:

\frac{į}{3}

3 0
2 years ago
Prove that XR is equivalent to YP by using the terms in geometry, its just proofs
Sophie [7]
PQRS is a parallelogram                   Given
SR=PQ                                               property of parallelogram
m∠S=m∠Q                                         property of parallelogram
SP=QR                                               property of parallelogram
XP=RY                                               given
SP-XP=QR-RY                                  substitution
SX=QY                                              segment subtraction
ΔSRX is conggruent to ΔQPY           SAS theorem (side-angle-side)
XR=YP                                              CPCTC (corresponding parts of                                                                          congruent triangles are congruent)

3 0
3 years ago
Diego cut 7 smaller boards of equal length from a board that is 9 1/3 feet long. How long is each of the 7 smaller boards? Write
Temka [501]
It would be 9 1/3 divided by 7/1 or 28/3 * 1/7

It would give you 28/21 which would simplify to 4/3 and still leave you with an improper fraction
4 0
3 years ago
Which is the largest interval over which the function shown in the table is increasing?
vova2212 [387]

Answer:

x < 0

Step-by-step explanation:

If you were to graph the function, you would get a parabola that opens down with the vertex at (0, 0).  So, the graph is increasing from -∞ to 0.

3 0
2 years ago
Other questions:
  • 9+3.5g=11-0.5g solve for g
    12·2 answers
  • How do you turn 5x + 4y =8 into. Y= mx+ b
    5·2 answers
  • I need help plz help
    14·2 answers
  • T/s - b/s =1 solve for s
    13·1 answer
  • WILL GIVE BRANLIEST TO BEST ANSWER. 25 POINTS!
    15·1 answer
  • Kailey wrote 8,912,000 in scientific notation as 89.12 x 10(exponent 5). Which statement best describes Kailey’s work?
    10·2 answers
  • Factor this expression completely<br><br>-21x + 28​
    13·2 answers
  • Math Question:<br><br> First to answer correctly gets marked brainliest
    15·1 answer
  • Y= |x – 2| what is the domain and range
    14·2 answers
  • Ryans basketball team has 11 players how many different ways can his coach choose 5 starting players
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!