2 years ago

I forgot how to do this!! i'd like help please!!

Mathematics

1 answer:

user100 [1]2 years ago

3 0

Answer:

9) 28

10) 22

Step-by-step explanation:

collinear means on the same line

9 ) AB+BC=AC

16+12=28

10) 13+9=22

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What is the common ratio for 128, 96, 72, 54,....

VLD [36.1K]

Answer:

Step-by-step explanation:

r=96/128=3/4

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2 years ago

Add. Simplify (or reduce) your answer, if necessary 1/4 +2/7+1/2=

Bumek [7]

Hey there! :)

Answer:

29/28.

Step-by-step explanation:

Starting with:

$\frac{1}{4} + \frac{2}{7} + \frac{1}{2} =$

Begin by finding a common denominator. A number that contains all of the denominators as a factor would be 28. Change each fraction to contain a denominator of 28:

$\frac{7}{28} + \frac{8}{28} + \frac{14}{28} =$

Add the fractions:

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3 years ago

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One number is 5 more than another number. their sum is −15 . what are the numbers?

Aliun [14]

X=5+y
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subsitute 5+y for x

5+y+y=-15
5+2y=-15
minus 5 from both sides
2y=-20
divide both sides by 2
y=-10

sub back
x=5+y
x=5-10
x=-5

the numbers are -10 and -5

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2 years ago

Find the value please

DanielleElmas [232]

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2 years ago

In elimination what is... <br> 3x+2y=-29<br>-<br>- 3x-57 = 25<br>

andrezito [222]

Answer:

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Step-by-step explanation:

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3 years ago