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Svetlanka [38]
3 years ago
7

What is the LCD of 8/9 and 7/8

Mathematics
2 answers:
LuckyWell [14K]3 years ago
5 0

Answer:

<em>The Least Common Multiple (LCM) of 8 and 9 is </em><em>72</em><em>,</em>

<em>and the Least Common Multiple (LCM) of 7 and 8 is </em><em>56</em><em>.</em>

Stels [109]3 years ago
4 0

Answer:

72 I think

Step-by-step explanation:

I'm not 100% sure but I think its 72

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The blood mass of a mammal is proportional to its body mass. A rhinoceros with body mass 3000 kilograms has blood mass of 150 ki
coldgirl [10]

Answer:

The equation which equates the two is M  = \frac{B}{20}  = 0.05B

A human with a body mass of 80 kilograms will have a blood mass of 4 kilograms.

Step-by-step explanation:

It is said that the blood mass is proportional to the body mass.

We can say that the blood mass of a mammal is M, and that the body mass of a mammal is B.

Since the two are proportional we can write

M  ∝ B   , or M = kB    where k is the constant of proportionality.

Using the given values for a rhinoceros we can write

150 = k × 3000

Therefore k = \frac{150}{3000} = \frac{1}{20}  = 0.05

Therefore the equation which equates the two is M  = \frac{B}{20}  = 0.05B

A human with a body mass of 80 kilograms will have a blood mass of

= \frac{80}{20}  = 4 kilograms

8 0
3 years ago
Right the point-slope form of the line that passes through negative (7,8) and has a slope of -5
Delicious77 [7]

Answer:

y-8=-5(x-7)

Step-by-step explanation:

we know that

The equation of the line in point slope form is equal to

y-y1=m(x-x1)

we have

m=-5\\(x1,y1)=(7,8)

substitute

y-8=-5(x-7)

4 0
3 years ago
What is the least common denominator (lcd) of 1/2 2/3
Usimov [2.4K]

Answer:

6

Step-by-step explanation:

Find the least common multiple (LCM) of the denominators in order to find the least common denominator (LCD).

5 0
3 years ago
A man buys 3 chicken sandwiches at 2.75 each and 2 cokes at 1.19 and the tax is $0.64. he gives you 11.52. how much change shoul
Artist 52 [7]

3 chicken sandwiches at $2.75 each: 3*2.75= 8.25


2 cokes at 1.19: 2*1.19= 2.38


Tax: 0.64


8.25+2.38+0.64= 11.27


He gives you 11.52, to find how much you need to give him back, subtract how much he gives you by the amount that is charged (11.27)


11.52-11.27= $0.25

3 0
3 years ago
How to find matrics M
makkiz [27]

\left[\begin{array}{ccc}9&7\\-4&2\end{array}\right] -4M=\left[\begin{array}{ccc}-3&3\\4&-18\end{array}\right]\qquad(*) \\\\M=\left[\begin{array}{ccc}a&b\\c&d\end{array}\right]\to4M=\left[\begin{array}{ccc}4a&4b\\4c&4d\end{array}\right]

(*)\qquad\left[\begin{array}{ccc}9&7\\-4&2\end{array}\right] -\left[\begin{array}{ccc}4a&4b\\4c&4d\end{array}\right]=\left[\begin{array}{ccc}-3&3\\4&-18\end{array}\right]\\\\\left[\begin{array}{ccc}9-4a&7-4b\\-4-4c&2-4d\end{array}\right]=\left[\begin{array}{ccc}-3&3\\4&-18\end{array}\right]\\.\qquad\qquad\qquad\qquad\ \ \ \Downarrow\\(_{11})\qquad9-4a=-3\ \ \ |-9\\-4a=-12\ \ \ \ |:(-4)\\a=3\\\\(_{12})\qquad7-4b=3\ \ \ \ |-7\\-4b=-4\ \ \ \ |:(-4)\\b=1

(_{21})\qquad-4-4c=4\ \ \ \ |+4\\-4c=8\ \ \ \ |:(-4)\\c=-2\\\\(_{22})\qquad2-4d=-18\ \ \ \ |-2\\-4d=-20\ \ \ \ \ |:(-4)\\d=5\\\\Answer:\ A.\ M=\left[\begin{array}{ccc}3&1\\-2&5\end{array}\right]

3 0
3 years ago
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