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
makkiz [27]
4 years ago
13

if j is the number of integers between 1 and 500 that are divisible by 9 and k is the number of integers between 1 and 500 that

are divisible by 7, what is j + k?
Mathematics
1 answer:
Morgarella [4.7K]4 years ago
3 0

Answer:

  126

Step-by-step explanation:

The number of numbers divisible by 9 is ...

  j = floor(500/9) = 55

The number of numbers divisible by 7 is ...

  k = floor(500/7) = 71

Then the total (j+k) is ...

  j +k = 55 +71 = 126

You might be interested in
(60 points)
natka813 [3]

Answer:

<h2>2. D. 64</h2><h2>5. B. 1, -3/2</h2><h2>6. C. 0, 2</h2>

Step-by-step explanation:

2.\\(a-b)^2=a^2-2ab+b^2\\\\x^2-16x=-8\\\\x^2-2(x)(8)=-8\\\\\text{We have}\ 2ab=2(x)(8).\ \text{Therefore}\ b=8.\\\\x^2-2(x)(8)=-8\qquad\text{add}\ 8^2=64\ \text{to both sides}\\\\x^2-2(x)(8)+8^2=-8+64\\\\(x-8)^2=56

5.\\2x^2+x-1=2\qquad\text{subtract 2 from both sides}\\\\2x^2+x-3=0\\\\2x^2+3x-2x-3=0\\\\x(2x+3)-1(2x+3)=0\\\\(2x+3)(x-1)=0\iff 2x+3=0\ \vee\ x-1=0\\\\2x+3=0\qquad\text{subtract 3 from both sides}\\2x=-3\qquad\text{divide both sides by 2}\\\boxed{x=-\dfrac{3}{2}}\\\\x-1=0\qquad\text{add 1 to both sides}\\\boxed{x=1}

6.\\2x^2-4x=0\qquad\text{divide both sides by 2}\\\\x^2-2x=0\\\\x(x-2)=0\iff x=0\ \vee\ x-2=0\\\\\boxed{x=0}\\\\x-2=0\qquad\text{add 2 to both sides}\\\boxed{x=2}

8 0
3 years ago
HELP PLEASE my teachers always force me to turn on my camera during class unless I have a valid excuse can anyone give me a crea
allsm [11]

Answer: My internet connection is not good enough.

Step-by-step explanation: This one may be pretty commonly used but also a common problem people always have and it's pretty unavoidable. Tell her that the call\meeting gets super laggy and then ends up freezing and that doing it over voice is a better option for you so you can get the best learning experience or something like that. Basically pretend you care until he\she believes it.

Good luck <3 Let me know if you need another!

4 0
3 years ago
Read 2 more answers
What is the inverse of the given relation? Y=7x^2+4
EleoNora [17]

follow these steps:

1) y-4=7x^2

2) (y-4)/7 = x^2

x = \sqrt{ \frac{y - 4}{7} }

so you must inverse x and y names:

{f}^{ - 1} (x) = \sqrt{ \frac{x - 4}{7} }

7 0
3 years ago
Taylor does jumping jacks at a rate of 50 jumping jacks per minute. If Taylor completes her jumping jacks at a constant rate and
Viktor [21]

Answer:

3 minutes

Step-by-step explanation:

150/50

3 0
4 years ago
What is 2/3 + __=1 4/9
g100num [7]
You turn 2/3 into 6/9
Then turn 1 4/9 into an improper fraction 13/9
Then subtract and you get 7/9

The answer is 7/9
4 0
3 years ago
Other questions:
  • Which given congruence is still needed to prove that LMO = NMO by AAS?
    14·1 answer
  • limo service charges a base rate of $30 and then No $25 per mile. write an equation that would show the total cost of a limo rid
    15·1 answer
  • A repeating pattern of figures that completely covers a plane, without gaps or overlaps, is called a _____ conjecture. transform
    15·1 answer
  • Isaac drinks 8 glasses of water each day. He says he will drink 2920 glasses of water in a year that has 365 days. Is the answer
    11·1 answer
  • The difference of x and a number is 6. What is the other number?
    11·1 answer
  • Jess borrows 250 from the bank. The band chargEs 11% simple interest over 2 years.
    8·1 answer
  • Mr. Smith got a new puppy, Stout! He went out and bought a bag of puppy chow for $27.99, but had a 15% off coupon.
    10·2 answers
  • What is the length of BC? If the answer is not an integer, leave it in simplest radical form. The diagram is not drawn to scale.
    8·1 answer
  • A data set is made up of these values three, three, four, six, six, seven, 10.
    7·1 answer
  • A ball is thrown in the air from a platform that is 96 feet above ground level with an initial vertical velocity of 32 feet per
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!