MATHEMATICS MIDDLE SCHOOL

Paula solved the equation 7+x=10 so x= 10 and got 17, but she is not certain if she got the correct answer. How could you explain Paula's mistake to her? please help guys I got a D in math

Answers

Answer 1

Answer: 7+x7+x=10x=3explainationyou must SUBTRACT 7 from both sides of the equation7`-7 +x=10-7x=3

Answer 2

Answer:

Paula should have solved for x. So 7+x=10 would be

-7 -7

X=3 to check7+3=10

10=10

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What do you multiply -2 by to get -24

Answers

Lets write this into an expression.

-2x = -24

Now, lets solve for x.

~Divide -2 to both sides

-2x/-2 = -24/-2

~Simplify

x = 12

Best of Luck!

Answer:

The answer is 12

Step-by-step explanation:

Step 1: Convert words into an equation

What do you is you multiply -2 by something to get -24

-2 * something = -24

We can represent something with a variable called x.

-2 * x = -24

-2x = -24

Step 2: Solve for x by dividing both sides by -2

-2x / -2 = -24 / -2

x = 12

Answer: The number we can multiply -2 by to get -24 is 12

BIG POINTS (82)

what is the area of a circle if its radius is 3596cm let pi=3.14

Answers

Area of a circle of radius $r$ : $A=\pi r^2$

3596cm = 35.96 m hence

Hence here $A=\pi r^2\approx3.14\cdot(35.96)^2=3.14\cdot1293.1216=4,060.401824m^2$

How many times can 80 go into 103

Answers

1 with a remainder of 23

it is 1r.23
and thats it

What is 1/5 + 2/3 help

Answers

You need to simplify so one-fifth would be 3/15 and 2/3 would be 10/15 so you need to add that together and it would be 13/15

13/15 is the right answer. First you had to add by the fractions. And it gave us, $(3)/(15)+ (10)/(15)$ . Since the denominator are equal, and then combine by the fraction. And it gave us, $(3+10)/(15)$ . Finally, add the numbers and it gave us the answer is 13/15 is the right answer. Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie

The price of an item yesterday was 180 Today, the price fell to 153 Find the percentage decrease.

Answers

The percentage decrease is 15%.

EXPLANATION

180 - 153 = 27 (price decrease)

10% of 180 = 18

5% of 180 = 9

18 (10%) + 9 (5%) = 27 (15%)

Final answer:

The price decreased by 27 and when you convert this into a percentage by dividing by the original price and then multiplying by 100, the result is a 15% decrease in the price.

Explanation:

To calculate the percentage decrease in the price, you first need to find out how much the price has fallen by. So subtract the new price (153) from the old price (180). This gives you 27.

Next, to convert this decrease to a percentage, you divide it by the original price (180) and then multiply by 100. So the calculation would be (27/180)*100 = 15%.

Therefore, the price of the item decreased by 15%.

Learn more about Percentage Decrease here:

brainly.com/question/35705707

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What do you do to find m?

Answers

ok here is how to solve these I hope this helps
7 = 2-5m
+5m +5m
7+5m = 2
-7 -7
5m = -5
/5 /5
m=-1

-Hope this helps :)

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Please help!!! I will give brainlist thank you!!!