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Korolek [52]
3 years ago
12

What properties will you use next to solve the equation

Mathematics
1 answer:
ella [17]3 years ago
7 0

Answer:

To solve an equation you can use PEMDAS, standing for parenthesis, exponents, multiplication, division and addition. If it's an equation like, x/3+7+13, you could use the distributive property. By separating variables.

Step-by-step explanation:

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Eff traveled at an average speed of 65 miles per hour for 2.5 hours and then traveled at an average speed of 70 miles per hour f
AleksandrR [38]

Answer:

267.5 miles

Step-by-step explanation

65×2.5=162.5                

70×1.5=105

162.5+105=267.5

<h2>                                267.5</h2>
3 0
3 years ago
What is the length of the altitude of an equilateral triangle with side a?
nikitadnepr [17]

Answer:

  (a√3)/2

Step-by-step explanation:

You can find the height (h) of a equilateral triangle any of several ways. A simple one is to use the Pythagorean theorem.

In the diagram below, h is one leg of the right triangle with a/2 as the other leg and a as the hypotenuse. The Pythagorean theorem gives the relationship as ...

  h² + (a/2)² = a²

  h² = a² - a²/4 . . . . . . . subtract (a/2)²

  h² = a²(1 -1/4) = a²(3/4)

  h = √(a²(3/4)) = (a/2)√3

The height is (√3)/2 times the side length.

6 0
3 years ago
Look at each number or expression is its value to the rational number -7/12?
AVprozaik [17]
A. Yes
B. Yes
C. No; bc a negative divided by a positive equals a negative. and if you were to turn -7/12, it would be -583 with the 3 repeating
3 0
3 years ago
Find the missing dimension of the cylinder, Round your answer to the nearest whole number.
Greeley [361]

Answer:

radius =  \frac{diameter}{2}   \\  =  \frac{8}{2}  = 4 \: ft \\ volume = \pi {r}^{2} h \\ 250 = 3.14 \times  {4}^{2}  \times h \\ 250 = 50.24h \\ height = 5 \: ft

5 0
3 years ago
Read 2 more answers
Andrew has 20 more goldfish than Todd .together they have 80 goldfish how many goldfish does each boy have
mina [271]

Hi!

Lets work through this problem together.

If they have 80 Goldfish in all, and Andrew has 20 more than Todd, that means that means Andrew has i think 60.

4 0
3 years ago
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