Divide both sides by 3.1 and find g = 20.9/3.1 ≈ 6.7 ≈ 7.
You can estimate this without a calculator by saying 20.9 ≈ 21 and 3.1≈3, then 21/3=7.
In general, be careful with rounding before a calculation, because the rounding errors can be enlarged, messing up the accuracy of your answer. It's best to round only at the end.
The answer to your question is 25 i think
Answer:
1) 5.8
2) 341
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Well all you have to do is add the number Teresa has by itself or multiply it be 2. Because Teresa needs twice as many as Samuel so all you have to do is multiply it by 2.
Answer:
y=-3/2x+1
Step-by-step explanation:
To write the equation of a line we must have a slope and a point. To find the slope we use the slope formula and substitute (x,y) points in it as shown below:
Now that we have the slope, plug in the slope and choose one point to plug into the point slope formula. Use the point-slope form to write the equation, then simplify and convert into the slope intercept form.
(y--2)=-3/2(x-2)
y+2=-3/2(x-2)
y+2=-3/2x+3
y=-3/2x+1