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AURORKA [14]
2 years ago
7

A bag contains 5 back marbles 10 red marbles and 20 blue marble which statement is true

Mathematics
1 answer:
Galina-37 [17]2 years ago
4 0
What are the statements?
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Name the property used in: (5 + 2) + n = 7 + n
rjkz [21]
Additive indentity
(5 + 2) + n
n = 1
a variable is always a number itself remember 7+n
5+2 = 7
5 0
3 years ago
​Which values are solutions to the inequality? ​ ​5r≤6r−8​ ​ Select each correct answer. r = 7 r = 8 r = 9 r = 10
Ratling [72]

Answer:

r = 8,9,10

Step-by-step explanation:

The given inequality is :

​5r≤6r−8​  ...(1)

We need to find the value of r.

Subtracting 5r to both sides of the inequality .

​5r-5r≤6r-5r−8

0≤r−8

r ≥ 8

Hence, the values of r are 8,9,10.

8 0
2 years ago
Read 2 more answers
Knitting: You are knitting a blanket. You want the area of the blanket to be 24ft^2. You want the length of the blanket to be 2
andriy [413]
You can use factors to solve.  Determine all the factor pairs of 24, find the two that are two numbers apart.
1, 24 X
2, 12 X
3, 8 X
4, 6 YES!


Algebraic way to solve using Quadratics:
l = 2 + w

A = lw

A = (2 + w)w  Substitute (2 + w) for l

24 = (2 + w)w  Substitute 24 in for the area

24 = 2w + w^2  Distribute

w^2 + 2w - 24 = 0  Set equal to 0 (put in standard form)

(w + 6) (w - 4) = 0  Factor

w + 6 = 0  and w - 4 = 0    Set each factor equal to 0.

So w= -6 or w = 4 ... -6 makes no sense for a length!  So the width must be 4 and the length will be 4 + 2, which is 6.

5 0
3 years ago
Is Figure B a scale copy of Figure A? Choose 1 answer: A. Yes B. No
Nataliya [291]

Answer:

A Yes

Step-by-step explanation:

the ratio is 2:1

8 0
3 years ago
Read 2 more answers
If f(x) = x/2 + 8, what is f(x) when x = 10?i
Triss [41]

Answer: f(x) = 13

Step-by-step explanation:

When x = 10

f(10) = 10/2 + 8

= 5+8

= 13

Hope this helps!

6 0
3 years ago
Read 2 more answers
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