Answer:
There are <u>77</u><u> girls</u> in the class when there are 49 boys.
A triangle in total is 360<span>°. So you add what you are given
46 + 61 = 107
and subtract that from 360
360 - 170 = 190
And the remainder is the last unknown angle.
So, the third angle is 190</span><span>°</span>
The subtraction property of inequality can be used to proof that x = 7 from x + 8 = 15
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
Given that x + 8 = 15
Hence:
x + 8 - 8 = 15 - 8 (subtraction property of inequality)
x = 7
The subtraction property of inequality can be used to proof that x = 7 from x + 8 = 15
Find out more on equation at: brainly.com/question/2972832
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. The amount of TIME spent driving (which depends on the SPEED of the car) is 5 hours. means time(speed) = 5. TIME and SPEED are your key words and 5 is the key number.