Answer:
8n + 4
Step-by-step explanation:
8-9n-n-4 collect like terms
9n-n+8-4
8b+4
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Answer: it contains 200 grams of zinc.
Step-by-step explanation:
Ratio of zinc to copper is 4 to 15 = 4;15
Total ratio = 4+15= 19
We first find amount of both zinc and copper( the whole chemical) which is equal to
ratio of copper / total ratio x (the entire chemical--total grams of zinc and copper) =amount of copper
15/19 x X = 750
X= 750 X 19 / 15= 950 grams
To find amount of zinc in the chemical = ratio of zinc / total ratio x total amount of chemical
=4/19 x 950
=200 grams
Answer:
40 mph
Step-by-step explanation:
After the 2 hours Gab travelled 100 miles (50*2), subtract this from 180 to find how many miles Carlos travelled. Divide this number by 2 to figure out the mph
The simplified expression for the area of the trapezoid is
<h3>What is area?</h3>
The area of a shape is the amount of space the shape occupies
<h3>What is a simplified expression?</h3>
A simplified expression involves rewriting an expression in a simpler form
The area of the trapezoid is given as:
Collect like terms
Evaluate the like terms
Hence, the simplified expression for the area of the trapezoid is
Read more about simplified expressions at:
brainly.com/question/4344214
The value of the 7 in the tens place in the number 772 is greater than the 7 in the hundreds place because it is a positive number, and is NOT a decimal. Think of it this way:
7 in the hundreds place = <u>7</u>00
7 in the tens place = 0<u>7</u>0
Look at where the 7 in the tens place is. A zero is in front of it.
Hope I was able to help :) please comment if any more questions or more clarification is needed.