3 years ago

The average of 2 numbers is 1/2. if one of the numbers is 11/17 then the other number is ___

Mathematics

1 answer:

velikii [3]3 years ago

6 0

The other number is. 6/17 .

Add the two numbers. Their sum is 1, so their average is 1/2 .

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Find the missing dimension of each prism: volume= 56 1/4 ft | width= 3 3/4 ft | length= 7 1/2 ft

Juliette [100K]

Prism volume = width*length*height
56 1/4 = 3 3/4 * 7 1/2 * h

56.25=3.75*7.5*h

h=(56.25)/(3.75*7.5)=2

So that the missing dimension (height) is 2 ft

4 0

3 years ago

SOMEONE ANSWER AND EXPLAIN PLEASE ILL MARK BRAINLIEST

VikaD [51]

Answer:

(2,1)

Step-by-step explanation:

This is the answer by substitution.

change 2x+y=5 to y=5-2x

5x-2(5-2x)=8

x = 2

y=5-2(2)

y = 1

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You're welcome!!!

6 0

2 years ago

Write the first five terms of the geometric sequence in which a1=8 and the common ratio is -1/2.

Oliga [24]

Answer:

First five terms are:

8 , (-4) , 2 , (-1) , (1/2)

Step-by-step explanation:

$a_{1}=8 \\\\r = \frac{-1}{2}\\\\a_{2}=\frac{-1}{2}*a_{1}= \frac{-1}{2}*8= -4\\\\a_{3}=\frac{-1}{2}*a_{2}=\frac{-1}{2}*-4=2\\\\a_{4}=\frac{-1}{2}*a_{3}=\frac{-1}{2}*2=-1\\\\a_{5}=\frac{-1}{2}*a_{4}=\frac{-1}{2}*-1=\frac{1}{2}$