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Stolb23 [73]
3 years ago
15

Solve equation 13=x/7+5

Mathematics
2 answers:
Korolek [52]3 years ago
6 0
(7) X/7+5=13 (7) multipl 7 to cancel the division

49x+5= 91
-5. -5. Subtract 5 to get X by itself

49x = 86
—————
49. 49. Divide number with X to 86

X = 1.76 if round to the hundredth solution
yuradex [85]3 years ago
3 0

Answer:

56

Step-by-step explanation:

Isolate the variable (x). Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, subtract 5 from both sides:

13 (-5) = (x/7) + 5 (-5)

13 - 5 = x/7

8 = x/7

Isolate the variable x. Multiply 7 to both sides:

8(7) = (x/7)(7)

8(7) = x

x = 8 * 7

x = 56

56 is your answer for x.

~

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Almost 9 over 16 of the total water supplied to a household is used for taking showers. Determine the decimal equivalent of 9 ov
NeX [460]

Answer:9/16 equals to 0.5625 so it terminates.

16 doesn't go into 9 so 0. Add a zero so 16 goes into 90 5 times and it equals to 80 so subtract 80 from 90 which equals 10.  Add another zero since 16 cant go into ten and 16 goes into 100 6 times and it equals to 96 so 100-96 equals 4. Sixteen cant go into 4 so add a zero which makes it 40. 16 goes into 40 2 times and it equals to 32 so 40-32=8. Add a zero to the eight and 16 goes into 80 5 times and etc etc.

3 0
3 years ago
What are they coordinates
Arte-miy333 [17]

Answer:

let ABC be a right-angled triangle, where A is the right angle (left to right)

the original coordinates:

A (-8, 8)

B (-1, 8)

C (-8, 5)

by changing the coordinates from (x, y) to (-y, x)

A (-8, -8)

B (-8, -1)

C (-5, -8)

<em>look attachment</em>

8 0
3 years ago
1.43 x -20/39 is close to -.075. Is this estimate reasonable? The product is negative and half of ?
Oksanka [162]

Answer:

yes, that is correct

Step-by-step explanation:

- (20÷39) = - 0.513

- 0.513 * 1.43 = - 0.734 ~ - 0.75

3 0
3 years ago
Solve. −3/5x +1/5 &gt; 7/20
Reika [66]
-3/5x + 1/5 > 7/20
-3/5x > 7/20 - 1/5
-3/5x > 7/20 - 4/20
-3/5x > 3/20
x < 3/20 * - 5/3
x < -15/60 reduces to -1/4

3 0
3 years ago
Read 2 more answers
Please answer this correctly
Solnce55 [7]

Answer:

17.85 feet.

Step-by-step explanation:

Area = 1/4 * 3.14 * r^2  where r is the radius

So r^2 = 19.625 / (1/4 * 3.14)

r^2 = 25

r = 5 feet.

The perimeter = 2r + 1/4 * 2* 3.14*r

= 2*5 + 7.85

= 17.85 feet.

3 0
3 years ago
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