MATHEMATICS MIDDLE SCHOOL

4/7t = 4

t=

please & thank you xx <3

Answers

Answer 1
Answer: To solve for t, you must multiply both sides by (7)/(4) to isolate it.

t=(4)*( (7)/(4) )    The 4s cancel leaving 7.

t=7

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2{ 5[12+5 (500 - 100)+399]}

Answers

This is solved by breaking the equasion down.

2 { 5 [12 + 5 (500 - 100) + 399 ]}

2 { 5 [12 + 5 (400) + 399]}

2 { 5 [12 + 2000 + 399]}

2 { 5 [2411]}

2 {12055}

24110

Is this the answer you were looking for?
2(5(12+5(500−100)+399))

=2(5(12+(5)(400)+399))

=2(5(12+2000+399))

=2(5(2012+399))

=2(5)(2411)

=(2)(12055)

=24110

the area of a square floor on a scale drawing is 100 square centimeters and the scale of the drawing is cm : 2 ft what is the area of the actual floor what is the ratio of the area in the drawing to the actual area

Answers

The actual floor is 200 square feet and the ratio is 100 square centimeters: 200 square feet
the ratio would be 50:1 because you would have to simplify the ratio 100:2

If sin(O) = 24/25 and 0 is in Quadrant I then what is sin (0/2)?
Simplify your answer
​

Answers

Answer:

sin((\theta)/(2)) = (3)/(5)

Step-by-step explanation:

Given that:

sin\theta = (24)/(25)

Using trigonometric identity:

sin^(2)x +cos^(2)x=1

Putting x=\theta

sin^(2)\theta +cos^(2)\theta=1

\Rightarrow cos^2\theta = 1 - ((24)/(25))^2\n\Rightarrow cos^2\theta = (625 - 576)/(625) = (49)/(625)\n\Rightarrow cos\theta = (7)/(25)

Positive value taken because \theta is in first quadrant and value of cos\theta will be positive.

Now using the formula:

sin^2x=(1-cos2x)/(2)

Here, putting 2x=\theta

sin^2x=(1-cos2x)/(2)

sin^2((\theta)/(2))=(1-(7)/(25))/(2)\n\Rightarrow sin^2((\theta)/(2))=(18)/(25* 2)\n\Rightarrow sin^2((\theta)/(2))=(9)/(25)\n\Rightarrow sin((\theta)/(2))=(3)/(5)

Positive value taken because \theta is in first quadrant and value of sin((\theta)/(2)) will be positive.

I need help on 2 and 3 please

Answers

2. A
3. A
2 times x is 2x, 2 times y is 2y; therefore it is 2y +2x
2 times 3x is 6x, there is no possible way for the answer to be 5x
if you multiply the outside number by all the terms in the parenthesis you'll get;
2(x + y) = 2(x) + 2(y)= 2x + 2y giving you A as your answer in Q.#2.
And for Q.#3 the its the same steps;
2(3x) = 2(3)(x) = 6x Giving you A as your answer cause; 5x is not equivalent and the others are equivalent to 6x by multiplying as I explained you.
hope that helps :D

Which equation has every number as a solution?A. 4x = 4x + 1
C. 4(x+1)= 4x+1
B. 4x + 1 = 4x - 1
D. 4(x+1) = 4x + 4

Answers

Answer:

the answer is D

Step-by-step explanation:

the equation works with every number placed where the x is, for example:

4(5+1)= 4×5 + 4

4×6=20+4

24=24

but it also works with

4(11+1)= 4×11 + 4

4×12=44+4

48=48

and it also works with every possible number you can think!

Answer:

D.

Step-by-step explanation:

Lets look at equation D:

4(x + 1) = 4x + 4

4x + 4 = 4x + 4.

The left side is identical to the right so

you can put x equal to  any number and this equation will be true.

There were 12 3/4 cups of orange juice in a car in each day Alberto drink one one fourth of orange juice today there is 1/4 cup of orange juice left for how many days has Alberto drink orange juice

Answers

You start out with 12 3/4 cups of orange juice.  Alberto drinks 1/4 cup of orange juice per day.  So you need to divide 12 3/4 by 1/4.  Then you subract 1/4 from it to get 50 days.  Alberto drank 1/4 cup of orange juice for 50 days.
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