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11111nata11111 [884]
3 years ago
11

If j = k, then j + 9 = k + 9 represents which algebraic property

Mathematics
1 answer:
sleet_krkn [62]3 years ago
8 0

Answer:

c) The given  expression represents Addition Property of Equality.

Step-by-step explanation:

Here, the given expression is j = k

Now by ADDITION PROPERTY OF EQUALITY:

The property that states that if you add the same number to both sides of an equation, the sides remain equal.

So,  <u>  if A  = B  ⇒  A + </u><u>x </u><u> =  B + </u><u>x</u>

<u></u>

Now, here given that j = k

If we add the same number 9 on both the sides, the equation remains  undisturbed.

⇒   j + 9  = k + 9

Hence, the above expression represents Addition Property of Equality.

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104 tests is what % of 160 tests
Afina-wow [57]
160 test=100%

Therefore:

160 test------------------100%
104 test------------------   x
x=(104 test*100%) / 160 test=65%

Answer: 104 test is the 65% of 160 test
8 0
2 years ago
Can someone help me with this?
uysha [10]

Step-by-step explanation:

Volume of a cylinder : πr^2*height.

Volume : 150cm^3

height : 7.2m

π =3.14

150 = 3.14*r*r*7.2

150=22.608*r*r

r^2= 150/22.608

=150/23cm^2

r=√6.5

r=2.569cm

r=2.6cm

8 0
2 years ago
Please help me on this!!! I’d really appreciate it!!!
finlep [7]

Answer:

B

Step-by-step explanation:

4 0
2 years ago
A 2-kg sausage is divided into several 100-g portions. How many portions are there?
Mademuasel [1]

Answer:

20 portions

Step-by-step explanation:

2 kg = 2000 g

2000 / 100 = 20

Hope this helped! :)

7 0
3 years ago
A man can buy 20 mangoes or 30 oranges. If he wants a each amount of each, how many of each would he get? Write an EQUATION to s
DochEvi [55]

Answer:

12

Step-by-step explanation:

In this question, there are two variables: the number of mangoes(y) bought and the number of oranges bought(x).

Let's say the man have z money, mangoes price is \frac{1}{20}z and the oranges price is \frac{1}{30}z. The equation for money and number of mangoes and oranges will be:

money = mango price * mangoes bought + orange price * orange bought

z= \frac{1}{20}z * x + \frac{1}{30}z *y

1= \frac{1}{20}x +\frac{1}{30}y

-\frac{1}{30}y= \frac{1}{20}x -1

y= -1.5x + 30

y= 30 - 1.5x

If he want equal number of mango and orange, that mean y=x. The calculation will be:

y= 30 - 1.5x

x= 30 - 1.5x

x+ 1.5x = 30

2.5x= 30

x= \frac{30}{2.5}= 12

8 0
3 years ago
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