MATHEMATICS HIGH SCHOOL

What is the value of x in the equation 4x - 10 = 3x?

Answers

Answer 1

Answer:

Answer:

x = 10

Step-by-step explanation:

given

4x - 10 = 3x ( subtract 3x from both sides )

4x - 3x - 10 = 3x - 3x ( simplify both sides )

x - 10 = 0 ( add 10 to both sides )

x - 10 + 10 = 0 + 10 , that is

x = 10

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Solve the following equation:A) y = 1/2
B) y = 2/7
C) y = -2/5
D) y = 3/4
Correct answer: A

Answers

Answer: A

Step-by-step explanation: You said the correct answer is a and if you are not lying then I am right

The sum of the measure of the interior angles of a polygon is 1080 what kind of polygon is it?

Answers

Hello,
Suppose n the number of vertex.
From a vertex, we can draw n triangles.
sum of angles :(n-2)*180
180n-360=1080
==>180n=(1080+360)
==>n=8
An octogon

Answer:

octagon

Have a nice day

Draw a sketch to help you solve this problem. Lucy had 3.2/3 kilograms of apples. She used some of the apples for a dessert. She has 1.1/3 kilogram of apples left.

How much of the apples did Lucy use for her dessert?

Answers

Lucy used 2 1/3 kilograms of apples for her dessert.

Get the whole fraction.

3 2/3 = ((3*3) + 2) / 3 = 11/3
1 1/3 = ((3*1) + 1) / 3 = 4/3

Original weight of apples = 11/3
Remaining weight of apples = 4/3
weight of apples used = ?

Subtracting fractions:
Step 1. Make sure the denominator are the same

11/3 - 4/3

Step 2. Subtract the numerators and put the difference above the denominator

(11 - 4) / 3 = 7/3

Step 3. Simplify the fraction

7/3 = 2 1/3

Bob, driving a new Ford, travels 330 miles in the same amount of time it takes John, driving an old Chevy and traveling 10 miles per hour faster, to travel 390 miles. How fast is Bob driving?

Answers

Answer:

55 mph

Step-by-step explanation:

Let x represent Bob's speed. Then John's speed is x+10, and their respective times are found by ...

time = distance/speed

330/x = 390/(x+10) . . . . . . . the times are the same

330(x +10) = 390x . . . . . . . multiply by x(x+10)

3300 = 60x . . . . . . . . . . . . . subtract 330x

55 = x . . . . . . . . . . . . . . . . . . divide by the coefficient of x

Bob is driving at 55 miles per hour.

Two variables are correlated with r=0.96 which answer best describes the strength and direction of the association between the variables? A- Strong positive B- Strong negative C- Weak negative D- weak positive

Answers

The description that best describes the strength and direction of the association between the variables is A. Strong positive.

What is a correlation?

A correlation is defined as a causative association between two or more variable, which can be used to make predictions about a given outcome.

The degree and direction of the link between the variables are best described by a strong positive correlation. R = 0.96 indicates that the independent variable raise the dependent variable by 0.96. R correlation ranges from 0 to 1, with 0 indicating the weakest connection and 1 indicating the strongest correlation.

As a result, 0.96 is a strong correlation. The correlation coefficient's minus and positive values indicate the direction of the relationship between the variables.

Answers

Since the original is Interest equals price times rate times time, taking out rate still includes price times time. So, you first have R = pt. Now to insert interest, you would have to divide the interest by pt, since you invert the multiplying of Rate. So, it would be R = I/pt. Basically, this is used for finding any of the prt segment. For P, use P= I/rt. For T, use T = I/pr. And for Michael's case, to find Rate you use R = I/pt.

Answer:

$(I)/(Pt)$ = r

Step-by-step explanation:

First write down the equation they gave you:

l = Prt

You need to ask yourself what is being done to r. r in this case is being multiplied by two variable: P and t. To undo multiplication you divide, the set up for division:

$(I)/(Pt) = (Prt)/(Pt)$

I divided by the two numbers, so it would be easier. The P and T cancels out on the right and you are left with r. On the left, however, it stays the same because there are no like terms to solve with. You just leave $(I)/(Pt)$ as it is.

The result you get is:

$(I)/(Pt)=r$

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