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Olenka [21]
3 years ago
11

What is the justification for each step in the solution of the equation?

Mathematics
1 answer:
ollegr [7]3 years ago
5 0
54+2x=5x−6−18x54+2x=5x−6−18x addition , division, multiplucation 
this step is wrong
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Kai has $40 to spend on groceries.He buys a ham for $14 and then wants to pick up apples for $2.50 per pound. How many pounds of
BabaBlast [244]
10.4 pounds of apples
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4 years ago
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A first grade class took a poll to find out their favourite ice cream. 1/4 chose chocolate, 1/4 chose vanilla and 1/2 chose stra
sammy [17]

Answer:

5 liked chocolate, 5 liked vanilla and 10 liked strawberry.

Step-by-step explanation:

22 kids are in the class and 2 kids are lactose intolerant meaning they don't eat ice cream. so take away 2 from 22 leaving 20 kids. so 20 kids eat ice cream. first u must find what is 1/4 of 20. so u divide 20 by 4 which equals to 5. so 1/4 of 20 is 5. so 10 is 1/2.

5 0
3 years ago
Help will give Brainly points
masya89 [10]

Answer:

x=√14

Step-by-step explanation:

Hi there!

We are given a right triangle (notice the right angle), with acute angles measuring 45° and 45°, the hypotenuse (the side opposite from the right angle) labeled as x, and one of the legs (one of the sides that makes up the right angle) labeled as √7

As these two angles are the same measure, the triangle is isosceles.

So that means that the measure of the other leg (the unmarked side) is also √7.

This triangle is a special type of triangle; a 45°-45°-90° triangle. For this triangle, if the length of the legs are a, then the hypotenuse has the length  a√2

In this case, √7 is a, and as x is the measure of the hypotenuse, it must be equal to a√2, which substituting the values of a would get √7 * √2, which is √14.

The radical cannot be simplified further, so √14 is the answer.

Hope this helps!

4 0
3 years ago
Solve the inequality.<br> 2n &gt; 30
RoseWind [281]

Answer:

Your answer tho this question is N > 15

Work :

2n>30

<em>Divide both sides by 2.</em>

<em />

2n/2 > 30/2

n>15

Hope this helps

8 0
3 years ago
PLEASE HELPP!!! Lines l and m are parallel. What is the measure of angle 3?
erma4kov [3.2K]

Answer:

25 degrees

Step-by-step explanation:

85 +x-10 + 2x=180

85-10+3x=180

75+3x=180

3x=105

x=35

 35-10=25

7 0
4 years ago
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