Collect like terms (x + 7x) + (-1 + 4 - 3)
Simplify
Answer: 8x
I hope this helps you
if 18 gallons for 420 miles
? gallons for 357 miles
?.420=18.357
?=15,3
The reason how the expression are equivalent given below:
<h3>What is Distributive Property?</h3>
Multiplying a number by a sum or difference is the same as multiplying by each number in the sum or difference and then adding or subtracting.
The Complete question is:
How can you use distributive property to write an expression equivalent to the one given above? Use reasoning to explain how you know the expressions are equivalent.
Distributive property represents distribute the outside number among the number or digits in parenthesis.
For Example: Solve the expression 7(20 + 3) using the distributive property of multiplication over addition.
When we solve the expression 7(20 + 3) using the distributive property,
we first multiply every addend by 7.
This is known as distributing the number 7 amongst the two addends and then we can add the products.
This means that the multiplication of 7(20) and 7(3) will be performed before the addition.
Hence, 7(20) + 7(3) = 140 + 21 = 161.
Learn more Distributive Property here:
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Answer: There are eight steps and two methods. I will be showing you one of them. If you're wondering, I am in 7th grade. I go to K12 online school.
Step-by-step Explanation: 1. Add together the lengths of the bases. The bases are the 2 sides of the trapezoid that are parallel with one another. If you aren’t given the values for the base lengths, then use a ruler to measure each one. Add the 2 lengths together so you have 1 value.[1]
For example, if you find that the top base (b1) is 8 cm and the bottom base (b2) is 13 cm, the total length of the bases is 21 (8 cm + 13 cm = 21 cm, which reflects the "b = b1 + b2" part of the equation).
2. Measure the height of the trapezoid. The height of the trapezoid is the distance between the parallel bases. Draw a line between the bases, and use a ruler or other measuring device to find the distance. Write the height down so you don’t forget it later in your calculation.[2]
The length of the angled sides, or the legs of the trapezoid, is not the same as the height. The leg length is only the same as the height of the leg is perpendicular to the bases.
3. Multiply the total base length and height together. Take the sum of the base lengths you found (b) and the height (h) and multiply them together. Write the product in the appropriate square units for your problem.[3]
In this example, 21 cm x 7 cm = 147 cm2 which reflects the "(b)h" part of the equation.
4. Multiply the product by ½ to find the area of the trapezoid. You can either multiply the product by ½ or divide the product by 2 to get the final area of the trapezoid since the result will be the same. Make sure you label your final answer in square units.[4]
For this example, 147 cm2 / 2 = 73.5 cm2, which is the area (A).
Answer:
very fast
Step-by-step explanation:
10.2 miles per minute :)
