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zubka84 [21]
3 years ago
13

Write an algebraic expression for 10 less than the difference of 2 times a number and 7

Mathematics
2 answers:
notka56 [123]3 years ago
6 0

Answer:

(2n - 7) - 10

Step-by-step explanation:

(2n - 7) represents "difference of 2 times a number and 7"

- 10 represents "10 less"

Mashcka [7]3 years ago
3 0

2x + 7 - 10

Or it also could be (2x + 7) - 10 but the parenthesis aren't really needed

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8 0
3 years ago
In the right triangle ABC with right angle at A , the inradius is 2cm. If the hypothenuse BC=10cm , determine the perimeter and
trasher [3.6K]

Answer: 24cm

Step-by-step explanation:

Inradius = r

c = the hypothenuse

a & b = the other 2 sides of the triangle

Inradius formula: r = 1/2 * (a+b-c)

Plug in what we know.

2 = 1/2 * (a+b-10)

Multiply both sides by 2.

2*2 = 1/2 * (a+b-10) * 2

4 = a+b-10

Add 10 to both sides.

4+10 = a+b-10+10

14 = a+b

Perimeter formula: P=a+b+c

Plug in what we know

(remember a+b=14).

P=14 + 10

P = 24

3 0
3 years ago
Can someone help me with this
Ivahew [28]

Answer:

Step-by-step explanation:(-1.5,3) and (0,3)

5 0
3 years ago
Read 2 more answers
3. Your test scores in science are 83 and 87. What
Liula [17]

Answer:

Between 85 and 100

Step-by-step explanation:

Getting this will get the average between the required numbers since the average of 83 and 87 is 85, getting 85 will keep the answer at 85 and getting 100 will get the average at 90.

4 0
3 years ago
Please help me with this
rosijanka [135]

Answer:

If the equation represent the situation the variable x represents the total amount of money Han made from mowing lawns.

Step-by-step explanation:

x=23

96-27=69

69/3=23

Jada made a total amount of 69 dollars from babysitting so Han made $23.  

Have a nice day!

and can I maybe have brainliest? Thanks!

4 0
3 years ago
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