MATHEMATICS MIDDLE SCHOOL

Solve the linear equation 2.25 – 11j – 7.75 1.5j = 0.5j – 1

Answers

Answer 1
Answer:

we have

2.25 - 11j - 7.75+ 1.5j = 0.5j - 1

Solve for j

Group terms that contain the same variable, and move the constant to the opposite side of the equation

2.25 - 11j - 7.75+ 1.5j = 0.5j - 1\n 11j+0.5j-1.5j=2.25-7.75+1\n 10j=- 4.5\n\n j= -(4.5)/(10) \n \n j=-0.45

therefore

the answer is

j=-0.45
Answer 2
Answer: First you will want all the j variables on one side, and you'll want to simplify it. Additionally, I like to change subtraction to addition of the opposite.

2.25 + (-11j) + (-7.75) + 1.5j =  0.5j + (-1) 
-5.5 + (-9.5 j) = 0.5j + (-1) 
-5.5 + (-9.5j) + (-0.5j) = -1
-5.5 + (-10j) = -1
-5.5 + 5.5 + (-10j) = -1 + 5.5
-10j = 4.5 
-10j/-10 = 4.5/10
j = -0.45 assuming that 7.75 was added to 1.5 j 

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The length of the hypotenuse of a right triangle is 15 in. and one leg has length of 6 in. Find the length of the other leg.A. 9 in.
B. 12 in.
C. square root 189 in.
D. square root 261 in

Answers

Answer: C. square root 189 in.

Step-by-step explanation:

Given : The length of the hypotenuse of a right triangle is 15 in.

The length of one leg = 6 in.

Let x be the length of other leg, then

According to Pythagoras theorem ,we have

Hypotenuse² = Perpendicular² + Base²

\Rightarrow\ 15^2=6^2+x^2\n\Rightarrow225=36+x^2\n\Rightarrow\ x^2=225-36=189\n\Rightarrow x=√(189)\ in.

Hence, the length of the other leg is √(189)\text{ in.}

Thus , the correct answer is C. square root 189 in.

Answer:

square root 189 i did the math and google says the same

Step-by-step explanation:

Thirty four divided by x is the same as 17

Answers

the answer is x = 2

34/x = 17

multiply both sides by x

34/x x = 17x

multply 34/x

and it gives you 34 = 17x

then switch sides 17x = 34

divide both sides by 17

17x/17     34/17

and that gives you x = 2

PLEASE I NEED HELP WITH THIS PRE CALC WORKSHEET DUE TOMORROWcan someone explain me how to do this? I kinda don’t get it and i don’t know from where to start.
Please

Answers

look the worksheet up or add me on snap i might have the anwsers to that worksheet im in calc to depends on your curriculum

Need help with this homework

Answers

A :
2.88/48 = $0.06 per ounce

B :
3.52/64= $0.055 per ounce
can be rounded to $0.06

C :
the container of 64 ounces for 3.52
or both are the same

~Please only answer if you know for sure~At the start of the week, you could run for 8 minutes. By the end of the week, you could run for 15 minutes. Which proportion could you use to find the percent increase in your running time?

7/15=n/100

8/7=n/100

7/8=n/100

8/15=n/100

Answers

So first of all, the percent increase formula is (new-original/original)*100
If you plug everything we have into the equation, it gives us:
(15-8)/8*100 = n
simplify and you get:
7/8*100 = n
divide both sides by 100 and you get your answer
which is:
7/8=n/100

Hope this helped!! :D
8/15

the change is tracked by tracing the second value from the first

8 being the first and 15 being the second.

the difference between the 2 should be the percent increase

8/15=....?

thats the proportion you use :)

A bar graph shows that sports books received 9 votes. If the scale is 0 to 20 by twos, where should the bar end for the sports books?

Answers

The answer to this question would be: between 8 and 10 

In this question, the sports book get 9 votes but the ranges are made by twos which mean only even number will be placed on the track. The closest even number from 9 would be 8(1 number below) and 10(1 number above). So, the bar should be between 8 and 10
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Two number cubes, each with the numbers 1 through 6, are rolled. What is the probability that the sum of the rolled numbers is 2?
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28/29 and 30 plz short explanation thanks