MATHEMATICS MIDDLE SCHOOL

37.5(3.8-x)+90x=300 please help me

Answers

Answer 1

Answer:

Answer:

I’m just copying his answer which is 3

Step-by-step explanation:

at least I tried

Answer 2

Answer:

Answer: 3

Step-by-step explanation:

37.5 (3.8-x) + 90x = 300

First, you have to simplify, by using the Distributive Property.

142.5 - 37.5x + 90x = 300

Now, add the like terms

142.5+ 52.5x = 300

Now, isolate the variable, meaning the variable has to be on one side on its own. You would have to subtract 142.5 and move it to the other side

52.5x = 300 - 142.5

52.5x = 157.5

Then, you divide!

$(52.5x)/(52.5x)$ = $(157.5)/(52.5x)$

= 3

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My teacher just gave me the sequence 7, 13, 19. He told us that the next answer is not 25. Please help.

Answers

7, 13 , 19.

An arithmetic sequence is one that has a common difference.

13 - 7 = 6.
19 - 13 = 6.

So the next in the sequence is 19 + 6 = 25.

The next in the sequence is 25.

It is not affected by what any one says.

Will practices piano for 1/4 hour,1/2 hour or 3/4 hour every other day if a line plot shows two Xs above each value of time what is the total amount of time will has spent practicing?Sorry i dont understand

Answers

the to this question is 5/4 because i found the common denominator and added my numerator. so thats how i got my answer

nate runs 8 miles each week write an expression for the number of miles he runs in ‘n’ weeks find the number of miles neutrons in five weeks

Answers

Answer:

0ne week= 8 miles

W=5n

The wavelength of the color red is about 6.5 × 10^−9 m. The wavelength of the color blue is about 4.75 × 10^−9 m. Show that the wavelength of red is longer than the wavelength of blue. (explain plz)

Answers

Answer:Concept Development: We have learned why scientific notation is indispensable in science. This means that we have to

learn how to compute and compare numbers in scientific notation. We have already done some computations, so we

are ready to take a closer look at comparing the size of different numbers.

Step-by-step explanation:There is a general principle that underlies the comparison of two numbers in scientific notation: Reduce everything

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1. Inequality (A): Let and be numbers and let > . Then < if and only if < .

2. Comparison of whole numbers:

a. If two whole numbers have different numbers of digits, then the one with more digits is greater.

b. Suppose two whole numbers and have the same number of digits and, moreover, they agree digitby-digit (starting from the left) until the

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B(4,5)O (0,0)
What is the general form of the equation for the given circle centered at O(0, 0)?

Answers

Step-by-step answer:

The general form of an equation centered at O(0,0) is given by

x^2+y^2=r^2

where r is the radius, (x,y) is any point on the circumference.

If B(4,5) lies on the circumference, then we can find the radius of the circle by substitution:

4^2+5^2=r^2

r^2 = 16+26 =41

Hence the equation of a circle centred at O(0,0) and B(4,5) on its circumference is

x^2 + y^2 = 41

Answer:

Option B for plato is the correct answer

Step-by-step explanation:

B. x2 + y2 − 41 = 0

Which product is negative?

Answers

For this case we have that by definition, the law of the signs of multiplication states that:

$+ * + = +\n+ * - = -\n- * + = -\n- * - = +$

So:

Option A:

$- * - * + = + * + = +$

It does not give a negative sign.

Option B:

$+ * - * - = - * - = +$

It does not give a negative sign.

Option C:

$+ * + * + = + * + = +$

It does not give a negative sign.

Option D:

$- * - * - = + * - = -$

The sign is negative.

Answer:

Option D

Answer: The Last One

Step-by-step explanation: The Last One Would Be A Product Of Negative

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