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g100num [7]
4 years ago
13

Select the correct answer.

Mathematics
2 answers:
geniusboy [140]4 years ago
4 0

Pretty sure it's C. The division property of equality.

Because on the last step, you divide 9d by 9, to get d. And you also have to divide the other side by 9.

sergij07 [2.7K]4 years ago
4 0

Answer:

D.

the addition property of equality

Step-by-step explanation:

Given the expression in

Step 2: 9d - 5 = -15

The addition property of equality was used to get step 3.

That is

9d - 5 = -15

Move -5 over the equality sign and it becomes +5

9d = -15 + 5

9d = -10

OR add 5 to both sides of the equation as shown below

9d - 5 +5 = -15 + 5

9d = -10 which we have in step 3

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-5=x/3-8 plz someone help me plz
Flura [38]
Isolate x by adding 8 to both sides.
3 = x/3
Then, multiply by 3 on both sides.
9 = x
To prove that this is right, you can imput 9 into the equation and it equals -5.
5 0
3 years ago
If 30% of the 50 dimes in the roll were minted before the year 2000,then how many dimes were minted before 2000?
rewona [7]

Answer:

15 dimes

Step-by-step explanation:

50 x .30 = 15

8 0
3 years ago
3. The angle between two equal sides of an isosceles triangle is 52º.
Naily [24]

Answer:

a) 64° each

b) 15.78 cm

c) 51.78 cm

Step-by-step explanation:

a) (180 - 52)/2 = 64°

b) cos 64 = x/18, x = 7.89, 2x = 15.78 cm

c) 18 + 18 + 15.78 = 51.78 cm

7 0
3 years ago
Written as a rate 256 miles away n 4 hours would be in miles per hour
MAXImum [283]

Answer:64

Step-by-step explanation: if he ran or went 256 miles in 4 hours to get the unit measurement divide it by 4 and you get 64 per hour

7 0
4 years ago
Write with rational exponents. Be sure to show your work and simplify your answer. See the file below.
goldenfox [79]

Answer:

(12ab)^1/2

Step-by-step explanation:

(⁶√12ab)³

= [(12ab)^1/6]³

= (12ab)^(1/6 * 3)

= (12ab)^1/2.

3 0
3 years ago
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