Ask question

Ask question

All categories

3 years ago

10

21r-7-r+5=-52 solve for r

2 answers:

vredina [299]3 years ago

4 0

উত্তর: আর = - 2.5 আর = -2} ধাপে ধাপে ব্যাখ্যা: 21 র - 7-আর + 5 = - 52 20r - 2 = - 52 20r - 2 + 2 = - 52 + 2 20r = - 50 20r + 20 = - 50 ÷ 20 আর = - 2.5

malfutka [58]3 years ago

3 0

Answer:

r = - 2.5

$r=-2\frac{1}{2}$

Step-by-step explanation:

21r - 7 - r + 5 = - 52

20r - 2 = - 52

20r - 2 + 2 = - 52 + 2

20r = - 50

20r ÷ 20 = - 50 ÷ 20

r = - 2.5

You might be interested in

I'LL GIVE BRAINLIEST TO THE CORRECT ANSWER!

artcher [175]

Solution :

1st -

$- 3 \times 5 \times ( - 6) \times 4$
$- 15 \times (- 6) \times 4$
$90 \times 4$
$360$

2nd -

$- 4 \times ( - 6 )\times ( - 3) \times ( - 5)$
$24 \times ( - 3) \times ( - 5)$
$- 72 \times ( - 5)$
$360$

3rd -

$- 3 \times 4 \times ( - 2) \times ( - 7)$
$- 12 \times ( - 2) \times ( - 7)$
$24 \times ( - 7)$
$- 168$

4th -

$- 7 \times ( - 3) \times ( - 9) \times 0$
$21 \times ( - 9) \times 0$
$- 189 \times 0$
$0$

Conclusion - only third choice has negative equivalent value

5 0

1 year ago

Read 2 more answers

Stacey and Jeremy sent out 380 wedding invitations. They have received 127 responses. What does q represent in the equation 380

alexandr402 [8]

Q=253, which is the number of responses they have not received

5 0

3 years ago

Read 2 more answers

Solve for x please for 10 points

Ira Lisetskai [31]

Answer:

$\frac{x-2}{2+1}=\frac{4x-5}{3}$

$\frac{x-2}{3} =\frac{4x-5}{3}$

$3*\frac{x-2}{3} =\frac{4x-5}{3}*3$

$x-2=4x-5$

$x-2+5=4x-5+5$

$x-x+3=4x-x$

$3=3x$

$\frac{3}{3} =\frac{3x}{3}$

$1=x$

Step-by-step explanation:

your answer is B

7 0

3 years ago

Read 2 more answers

Which is the best estimate of the mass os a basketball

Hatshy [7]

5 or 6 pounds because there not that heavy

8 0

4 years ago

A gardener planted 5 rows of vegetables. Each row has 3 pepper plants and s squash plants. The garden contains a total of 20 pla

Natalija [7]

(5x3)(5xs)=20
Hope that helps

3 0

3 years ago