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Black_prince [1.1K]
2 years ago
6

How I can answer this question, NO LINKS, if you answer correctly I will give u brainliest!

Mathematics
2 answers:
Archy [21]2 years ago
5 0

Answer:

j=3

j=4

j=5

Step-by-step explanation:

10≥ j+5

Subtract 5 from each side

10-5≥ j+5-5

5≥ j

All solutions will satisfy the inequality

Alex2 years ago
5 0

Answer:

c .5

Step-by-step explanation:

hope this will help you.....

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The two rectangles shown have equal areas. Find the value of x
Tema [17]

Answer:

x=18

Step-by-step explanation:

We need to find the areas of the rectangles

1st rectangle

A= l*w

A = (2x+4)*9

   = 18x+36



2nd rectangle

A = l*w

   = 15*(3x-30)

    = 45x-450


Since the area of the rectangles are equal, we set these two equations equal

18x+36 = 45x-450

Subtract 18x from each side

18x-18x+36 = 45x-18x-450

36 = 27x-450

Add 450 to each side

36+450 =27x

486 = 27x

Divide by 27 on each side

486/27 = 27x/27

18=x


7 0
2 years ago
Suppose you invest $2000 at annual interest rate of 4.5 % How much money do you have in the account after five years?
Naya [18.7K]

Answer:

if my math is correct

Step-by-step explanation:

2501.50

2504.65

5 0
3 years ago
A and B working together can do a work in 6 days. If A takes 5 days less than B to finish the work, in how many days B alone can
svetlana [45]

Answer:

15 days

Step-by-step explanation:

Let x be the number of days needed for B to complete the job. Then x-5 is the number of days needed for A to complete the job.

In 1 day,

  • A completes \dfrac{1}{x-5} of all work;
  • B completes \dfrac{1}{x} of all work.

Hence, in 1 day both A and B complete \dfrac{1}{x-5}+\dfrac{1}{x} of all work. A and B working together can do a work in 6 days. Then

6\cdot \left(\dfrac{1}{x-5}+\dfrac{1}{x}\right)=1.

Solve this equation:

\dfrac{6x+6x-30}{x(x-5)}=1,\\ \\12x-30=x^2-5x,\\ \\x^2-17x+30=0,\\ \\D=(-17)^2-4\cdot 30=289-120=169=13^2,\\ \\x_{1,2}=\dfrac{17\pm 13}{2}=2,\ 15.

If x=2, then x-5=-3 that is impossible. So, B needs 15 days to complete the work alone.

6 0
2 years ago
Need help with this 3 = x+3 - 5x​
Elis [28]

Answer:

x=0 (No solution)

Hope this helps!

5 0
3 years ago
Read 2 more answers
Solve −2x − 15 = 6x + 9
Alex787 [66]
X is going to equal -3
4 0
3 years ago
Read 2 more answers
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