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Leya [2.2K]
2 years ago
10

What times what gives you 15 but when added gives you 8?

Mathematics
2 answers:
UNO [17]2 years ago
4 0

Answer: 5 x 3 = 15 because 5 + 3 = 8

Step-by-step explanation:

lina2011 [118]2 years ago
4 0

Answer:

5 and 3

Step-by-step explanation:

5 x 3 = 15

but,

5 + 3 = 8 :)

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A cylinder with a radius of 1 cm and a height of 21 cm has the same volume as a cone with a height of 7 cm. What is the radius o
Natasha_Volkova [10]

Answer:

<h2>A) 3 cm</h2>

Step-by-step explanation:

The formula of a volume of a cylinder:

V=\pi r^2H

r - radius

H - height

We have r = 1cm and H = 21cm. Substitute:

V=\pi(1^2)(21)=21\pi\ cm^3

The formula of a cone:

V=\dfrac{1}{3}\pi r^2H

r - radius

H - height

We have V = 21π cm³ and H = 7cm. Substitute:

\dfrac{1}{3}\pi(r^2)(7)=21\pi        <em>divide both sides by π</em>

\dfrac{1}{3}(7)(r^2)=21         <em>divide both sides by 7</em>

\dfrac{1}{3}r^2=3         <em>multiply both sides by 3</em>

r^2=9\to r=\sqrt9\\\\r=3\ cm

5 0
2 years ago
Read 2 more answers
5) Solve: 2.4p + 6 = 48​
KatRina [158]

Answer:

p = 17.5

Step-by-step explanation:

This is the answer because:

1) First, we have to isolate x

2) To isolate x, first -6 from +6 and 48

+6 - 6 = 0

48 - 6 = 42

Equation: 2.4p = 42

3) Now we are left with 2.4p = 42

4) Next, divide 2.4 from 2.4 and 42

2.4/2.4 = 0

42/2.4 = 17.5

5) We are left with

p = 17.5

Therefore, the answer is p = 17.5

Hope this helps!

3 0
3 years ago
When graphed, which parabola opens downward? y = –3x2     y = (x – 3)2    y = x2 – 3   
In-s [12.5K]

The answer to this question is y = –3x^2, just had this on e2020 :)

6 0
3 years ago
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Is y=10/x linear or not
vfiekz [6]

Answer:

Yes it goes in a straight line

Step-by-step explanation:

6 0
3 years ago
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HELPP URGENT!
ollegr [7]

Answer:

Step-by-step explanation:

It’s B

4 0
3 years ago
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