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makkiz [27]
3 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]3 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

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Patricia compró 10 estampillas de correos unas de $3.00 y otras de $1.00. Si pago con $18.00 en total. ¿Cuántas pago por cada un
Ganezh [65]

Answer:

Entonces Patricia necesitara 4 estampas de $3 dolares y 6 estampas de $1 dolar

Step-by-step explanation:

Cuatro estampas de tres dolares cada una es:

3 × 4 = 12

Ahora necesitamos encontrar  cuantas estampas mas Patricia puede comprar. Podemos hacer esto restando 12 a 18, que es el costo total de las estampas menos del valor encontrado

18 - 12 = 6

Ahora sabemos que Patricia necesita 6 dolares de estampas ($1 estampas) para acompletar las 10 estampas  dando un total de $18 dolares.

6 × 1 = 6 < sumar 6 de 12

12 + 6 = 18

Entonces Patricia necesitara 4 estampas de $3 dolares y 6 estampas de $1 dolar

6 0
3 years ago
The circle's diameter is D=8
grigory [225]

Answer:

4

EXPLANATION STEP BY STEP

the radius of 8 is 4 because 4 is half of 8 and when u uh divide 8 by 2 u get 4 so if 4 is the answer.

7 0
3 years ago
Read 2 more answers
PLEASE HELP! I NEED THE ANSWER NOW!! please 15 points
ArbitrLikvidat [17]
That would be C . Constant rate .
8 0
3 years ago
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How do you find w for A=2(L+w)
dusya [7]
♡Let's solve this Step-By-Step!<span>♡
</span>♡<span>Question:
A=2(L+w)

♡</span>To solve for W we need to flip the equation like so:
<span><span>2l</span>+<span>2w</span></span>=<span>a
</span>
♡Now a<span>dd -2l to both sides:
</span><span><span><span>2l</span>+<span>2w</span></span>+<span>−2l</span></span>=<span>a+<span>−<span>2l
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♡<span>Divide both sides by 2:
</span><span><span>2w/</span>2</span>=<span><span>a−<span>2l/</span></span><span>2

</span></span>♡<span>Your answer shall be:
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4 0
3 years ago
Read 2 more answers
A) Write ²
I am Lyosha [343]

Answer:

see explanation

Step-by-step explanation:

(a)

x² - 2x - 4

using the method of completing the square

add/subtract ( half the coefficient of the x- term )² to x² - 2x

= x² + 2(- 1)x + 1 - 1 - 4

= (x - 1)² - 5

with c = - 1 and d = - 5

(b)

x² - 2x - 4 = 0 ← using result from (a) , that is

(x - 1)² - 5 = 0 ( add 5 to both sides )

(x - 1)² = 5 ( take the square root of both sides )

x - 1 = ± \sqrt{5} ( add 1 to both sides )

x = 1 ± \sqrt{5}

5 0
2 years ago
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