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Anon25 [30]
3 years ago
8

The equation 3(4y-2)= -30 is solved in several steps below. For each step, choose the reason that best justifies it.

Mathematics
1 answer:
kompoz [17]3 years ago
4 0

Answer:

see below

Step-by-step explanation:

3(4y-2)= -30  

12y-6= -30  Distributive Property

12y-6+6= -30+6   Addition Property of Equality   (the 6 on each side)

12y= -24    Simplifying  

12y -24

—— = ——-           Division Property of Equality    (divide by 12 on each side)      

12          12

Y= -2                Simplifying,  

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Remember to identify the length, width,
Amiraneli [1.4K]

Answer:

If the prism is trapezoid then you need to find the height and use this formula

1/2 x a+b x h

This has been done below you only need to fill in the height and do the shape for 3cm x 2cm as you haven't been clear in your question.

Volume = 8 x h x 10 = 80 x h cm^3

Hope this helps.

Step-by-step explanation:

Slope triangle prism and or rectangle

The area can be seen either by finding height of the triangle or working out the rectangle and halving the rectangle.

Step-by-step explanation:

Volume

6 x 8 = 48cm^2

48 x 5 = 230cm^2 for double (rectangle prism of 6 x8)

385/2 = 115cm^2 triangle slope prism

---------------

Area first

trapezoid front measures 6,5, 10

1/2 x 6 + 5 x h

=1/2 x 6 + 5 x h

= 8 x h x 10= 80 x h

Volume = 8 x h x 10 = 80 x h cm^3

5 0
3 years ago
10 1/2 in simplest radical form
VARVARA [1.3K]

Answer:

21/2

Step-by-step explanation:

10*2+1/2=21/2

use the formula

a\frac{b}{c}=\frac{a*c+b}{c}

7 0
4 years ago
7x - 9y = 23 find the value of y when x equals 11
Elanso [62]

Answer:

y = 6

Step-by-step explanation:

7x - 9y = 23

7(11) - 9y = 23

77 - 9y = 23 (subtract 77 from both sides)

-9y = -54 (divide both sides by -9)

y = 6

8 0
4 years ago
Read 2 more answers
At a swimming pool the ratio of thoseing weraing sunscreen to those who are not wearing sunscreen was 7 to 5 if the number of pe
lbvjy [14]

Answer:

wearing to not wearing= 7:5

5x=30

x=6

7(6)= 42

Answer is 42

Step-by-step explanation:

5 0
3 years ago
-5(3x - 2)= - 50. Im trippin over this problem bruh
Lyrx [107]
Don’t trip just use the distributive property. -5(3x-2)= -50 which would end up being -15x -7 = -50; then add 7 to both -7 which then they will cancel out and add 7 to -50 which equal -43 so x = -43
8 0
3 years ago
Read 2 more answers
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