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Klio2033 [76]
3 years ago
9

8a + 9 (7 + 10a) help me out

Mathematics
1 answer:
Gemiola [76]3 years ago
6 0

Answer

..

Step-by-step explanation:

multiplyy 9 and 7 then subtract 8a minus 10a

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Step-by-step explanation:

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2 years ago
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How do you write 0.8 recurring as a fraction?<br><br>please can i have an explanation aswell :)
monitta

Answer:

\frac{8}{9}

Step-by-step explanation:

we require 2 equations with the repeating digits placed after the decimal point.

let x = 0.888.. (1) ← multiply both sides by 10

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subtract (1) from (2) thus eliminating the repeating digits

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7 0
1 year ago
A chemical company makes two brands of antifreeze. The first brand is 55 % pure antifreeze, and the second brand is 80 % pure an
Likurg_2 [28]

We have 55% and 80% antifreeze.  We need 90 gallons of 75%.  

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********* DOUBLE CHECK ******************

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Source: 1728.com/mixture.htm


3 0
3 years ago
I need help pls<br> thank you
marissa [1.9K]

Answer:

x=22°, y=50°, z=108°

Step-by-step explanation:

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Not enough information

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You gave the height, but there is no length. You need both the height and length because the area of a triangle is 1/2bh

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