Answer:
Step-by-step explanation:
Let x be the brother's weight.
Then 2x-5 is Andy's weight.
x+(2x-5)=100
3x-5=100
3x=105
Answer:
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I sincerely hope this is right and that you get g really good mark ;)
To find how many hours Sonia work on her science project,we can multiply the working hours of Tony by the times Sonia did:

Therefore Sonia work on her science project for 5 5/6 hours.
Hope it helps!
Answer:
I can't see the pic at all pls take another one
Step-by-step explanation:
The measure of the exterior angle x is 90°.
We need to find the measure of the exterior angle x.
<h3>What is the exterior angle theorem formula? </h3>
An exterior angle of a triangle is equal to the sum of its two opposite non-adjacent interior angles.
Now, x°=∠A+∠B
⇒x°=30°+60°=90°
Therefore, the measure of the exterior angle x is 90°.
To learn more about the exterior angle visit:
brainly.com/question/2406986.
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