3 years ago

2/9 - 1/5 • x write an equivalent expression

Mathematics

1 answer:

Bas_tet [7]3 years ago

6 0

Answer:

1/45

Step-by-step explanation:

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Answer:

the answer is [c]

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In a class of 32 students, the mean height of the 14 boys is 1.56 meters, the mean height of all 32 students is 1.515. Work out

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I need help on this question

77julia77 [94]

Answer:

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Step-by-step explanation:

They both equal one 180 so add like terms and solve

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Thanks for your help!

yan [13]

a and b are the two leg sides

c is the longest side.

a^2+b^2=c^2

a=x

b=9

c=11

a=c-b

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3 years ago

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September 6 is a Read Book Day.Polina read 5 times as many pages as Marcus read.Together,the read 108 pages.How many pages did e

Gemiola [76]

Answer:

The number of pages that Polina read was 90 and the number of pages that Marcus read was 18

Step-by-step explanation:

Let

x -----> number of pages that Polina read

y ----> number of pages that Marcus read

we know that

x+y=108 ----> equation A

x=5y -----> equation B

substitute equation B in equation A and solve for y

$5y+y=108\\6y=108\\y=18$

Find the value of x

$x=5y -----> x=5(18)=90$

therefore

The number of pages that Polina read was 90 and the number of pages that Marcus read was 18

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3 years ago