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Serjik [45]
3 years ago
9

1/4(r-5/2)=1/8 i need an answer cant figure it out

Mathematics
2 answers:
san4es73 [151]3 years ago
5 0
1/4(r - 5/2) = 1/8
Divide both sides by 1/8 :0
2(r - 5/2) = 1
r - 5/2 = 1/2
r = 1/2 + 5/2 = 6/2

r = 3 Answer
egoroff_w [7]3 years ago
5 0
\dfrac{1}{4}(r - \dfrac{5}{2}) = \dfrac{1}{8}

The LCD of both fractions is 8, so multiply both sides by 8.

8 \times \dfrac{1}{4}(r - \dfrac{5}{2}) = 8 \times \dfrac{1}{8}

2(r - \dfrac{5}{2}) = 1

Distribute the 2 on the left side.

2r - 5 = 1

2r = 6

r = 3
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ad-work [718]

Answer:

60

Step-by-step explanation:

12=2⋅2⋅3

15=3⋅5

We see that they both share 3 is their LCM.

We divide each number by their LCM.

123⇒4

153⇒5

We multiply these two quotients and the LCM to get our final answer:

3⋅4⋅5=60

That is our answer!

Hope this helped! :)

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Aahil, James and merav share £90 in the ratio 1:3:5 how much does merav get
Dafna1 [17]

Given: £90 is divided among Aahil, James and Merav in the ratio 1:3:5.

To find: How much Merav gets.

Answer:

Let's assume the shares of each to be 'x'.

This implies that 1x + 3x + 5x = 90.

9x = 90

x = 90/9

x = 10

Substituting this value of x in the ratio,

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  • 5 × 10 = 50 [<em>Merav's share</em>]

Therefore, Merav gets £50.

Hope it helps. :)

8 0
2 years ago
Sarah has a shoebox that has a base that is 12 inches x 10 inches. The shoe box is 7.5 inches tall. Sarah lost the top to the bo
katrin2010 [14]
450

10*12= 120 the bottom of the box
10*7.5= 75 one side
75*2= 150 two sides
12*7.5= 90 another side
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Hope this helped :)
8 0
3 years ago
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