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raketka [301]
3 years ago
6

2d + 1 = 9 so d = what

Mathematics
2 answers:
weeeeeb [17]3 years ago
8 0

Answer:

d is 4 :))

hope that helped

Paha777 [63]3 years ago
4 0

Answer:

5

Step-by-step explanation:

2d+1=9

2d=8 (one crosses to the other side and becomes minus nine)

so d=4

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A water balloon has a diameter of 6 inches. How many cubic inches of water does it contain when it is 3/4 full
Travka [436]
Below are the choices that can be found from other sources:

A) 36 pi 
<span>B) 6 pi </span>
<span>C) 27 pi </span>
<span>D) 216 pi </span>
<span>E) 48 pi
</span>
A sphere's volume is (4/3)*pi*r^3. 
<span>The diameter of the balloon is 6 inches. The diameter is twice the radius. The radius is 3 inches. </span>

<span>(4/3)*pi*3^3 = 36 * pi </span>

<span>But the balloon is only 3/4 full. So </span>

<span>36 * (3/4) * pi = 27 * pi. </span>

<span>The balloon has 27 pi cubic inches of water.</span>
7 0
3 years ago
Find the profit % if selling price is Rs 130 and profit is Rs5​
Ad libitum [116K]

Answer:

3.85 % to 2 decimal places

Step-by-step explanation:

If you have Rs5 profit it means that you have sold it for 135

Do 5 / 130

Then times the answer by 100 *100

7 0
4 years ago
Read 2 more answers
Pleaseee helppp answer correctly !!!!!!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!
Karolina [17]
I’m pretty sure it’s just 30
8 0
3 years ago
Y varies inversely with x. When x = 3 then y = 5. Write a function to represent this relationship.
Mariulka [41]

Answer:

<em>The function to represent this relationship will be:  y= \frac{15}{x}</em>

Step-by-step explanation:

y  varies inversely with  x. That means......

y= \frac{k}{x}..............................(1)  

where k is a proportional constant.

Given that, when x=3, then y=5

Plugging these values into the above equation, we will get.....

5=\frac{k}{3}\\ \\ 5(3)=\frac{k}{3}(3)\\ \\ 15=k

Now plugging this k=15 into equation (1).....

y= \frac{15}{x}

So, the function to represent this relationship will be:  y= \frac{15}{x}


8 0
4 years ago
(50 POINTS)(WILL GIVE BRAINYEST)(STEP BY STEP ANSWER PLS) it would be very much appreciated if someone could help me on this pro
Lilit [14]
50% = $20
25% = $10
40+10 = $50
original price = $50
8 0
3 years ago
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