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dlinn [17]
3 years ago
11

Add: 2⁄4 + 3⁄5 + 6⁄8

Mathematics
2 answers:
Bas_tet [7]3 years ago
8 0

Answer:

Step-by-step explanation:

Find LCM of 4,5,8 = 40

Then find equivalent fractions

2/4 = 2*10/4*10 = 20/40

3/5 = 3*8/5*8 = 24/40

6/8 = 6*5/8*5 = 30/40

20/40+24/40+30/40 = (20+24+30)/40

= 74/40 = 37/20

algol133 years ago
3 0

Answer:

Step-by-step explanation:

1) Change the fractions so that they all have common denominators (2/4 --> 20/40,  3/5 --> 24/40,  6/8 --> 30/40)

2) Add the numerators together (74/40)

3) Simplify as necessary

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3 years ago
Given: AC bisects angle BCD , Angle ABC is congruent to angle ADC prove AB is congruent to AD. Help immediately
weeeeeb [17]

<em>AC bisects ∠BAD, => ∠BAC=∠CAD ..... (1)</em>

<em>thus in ΔABC and ΔADC,    ∠ABC=∠ADC (given), </em>

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Please help, I need input on if I did this correctly and you just substitute.
kow [346]

The value of h(t) when t=\frac{15}{32} is 10.02.

Solution:

Given function h(t)=-16t^2+15t+6.5

To find the value of h(t) when t=\frac{15}{32}:

h(t)=-16t^2+15t+6.5

Substitute t=\frac{15}{32} in the given function.

$h\left(\frac{15}{32} \right)=-16\left(\frac{15}{32} \right)^2+15\left(\frac{15}{32} \right)+6.5

            $=-16\left(\frac{225}{1024} \right)+15\left(\frac{15}{32} \right)+6.5

Now multiply the common terms into inside the bracket.

           $=-\left(\frac{3600}{1024} \right)+\left(\frac{225}{32} \right)+6.5

Now, in the first term, the numerator and denominator both have common factor 16. So reduce the first term into the lowest term.

          $=-\left(\frac{225}{64} \right)+\left(\frac{225}{32} \right)+6.5

To make the denominator same, take LCM of the denominators.

LCM of 64 and 32 = 64

        $=-\left(\frac{225}{64} \right)+\left(\frac{225\times2}{32\times2} \right)+6.5\times\frac{64}{64}

        $=-\frac{225}{64} +\frac{450}{64}+\frac{416}{64}

        $=\frac{-225+450+416}{64}

       $=\frac{641}{64}

       = 10.02

$h\left(\frac{15}{32} \right)=10.02

Hence the value of h(t) when t=\frac{15}{32} is 10.02.

8 0
3 years ago
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Sedaia [141]

Answer:

3

Step-by-step explanation:

just do (-1/2) x (-6) where the negatives cancels out and half of 6 is 3

Brainilist Maybe?

3 0
3 years ago
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