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VladimirAG [237]
3 years ago
10

If 4(r+2)-13=11, what is the value of r ?

Mathematics
1 answer:
vichka [17]3 years ago
3 0

Answer:

r=4

Step-by-step explanation:

First you multiply 4 by r which gives you 4r. Then you multiply 4 by 2 to give you 8.So it looks like this now

4r+8-13=11

Now you add thirteen to both sides and get

4r+8= 24

Then you subtract both sides by 8 to get 16

4r=16

Then you divide both sides by 4 to get 4

r=4

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Determine which ordered pair is a solution of y=8X
Amanda [17]
<span>A.(0,8) B.(-1,8) C.(1.5,10) D.(2,16)

Simply substitute the value of x to get the value of y.

y = 8x

(0,8) y = 8(0) ; y = 0

(-1,8) y = 8(-1) ; y = -8

(1.5,10) y = 8(1.5) ; y = 12

(2,16) y = 8(2) ; y = 16 

The correct ordered pair is D. (2,16)</span>
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3 years ago
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Lelu [443]
0.4% of $4,800 is $19.2, otherwise written as $19.20 in terms of money, apparently. This is based off the calculations of a calculator, though if you prefer to do the rough work, be my guest. The work for finding it on raw work is below.

(EX.) EQUATION : y = p% × x
EQUATION : y = 0.4% 
× 4800

To make this work, you gotta convert that percent into a decimal, by dividing the percentage by 100. 0.4 ÷ 100 = 0.004

EQUATION : y = 0.004 
× 4800.

Once you multiply them, you get : 19.2 (otherwise known as $19.20)
6 0
4 years ago
(2x1)+7-2/2=?............................................................................................
emmasim [6.3K]

Answer:

8

Step-by-step explanation:

(2 x 1) + 7 - 2/2

2 + 7 - 1

9 - 1

8

6 0
3 years ago
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<em>Look</em><em> </em><em>at</em><em> </em><em>the</em><em> </em><em>attached</em><em> </em><em>picture</em><em> </em><em>⤴</em>

<em>Hope</em><em> </em><em>it</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em>

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3 years ago
A bag contains 6 brown, 8 white, and 4 black marbles. Each time you take a marble
marusya05 [52]

Answer:

4.44

Step-by-step explanation:

Total NM of ball=18,

black ball=4

p(black,black)=?

p(black,black)=p(b)+p(b)

4/18+4/18=4.44ans

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3 years ago
Read 2 more answers
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