MATHEMATICS HIGH SCHOOL

Five more than “n” is equal to 9.

Answers

Answer 1

Answer:

Answer:

whats the question?

Step-by-step explanation:

Answer 2

Answer:

Answer:

n=4

Step-by-step explanation:

To write this equation, we know that five more than n equals 5. The word "more" implies we are adding. So we can write n+5=9 as our equation. We need to isolate the variable, so we get only n on one side. So we subtract 5 from each side to isolate. 9-5=4. So our new equation is n=4. This is also our answer!

I hope this has helped you!

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Which is the longest 2 km 25m 2500 cm or 3000 mm

Answers

2km=2 kilometer
kilo=1000 so 2 km=2000m

25m

2500cm
cm=centimeter=1/100 of a meter
so
2500cm=25m

mm=milimeter=1/1000 meter
so
3000mm=3m

so the longets is obviously 2000m or 2km

So,

Let's state everything in terms of meters (m).

The conversion factor between km and m is as follows:
1 km = 1000 m
Therefore, 2 km is 2000 m.

The conversion factor between cm and m is as follows:
100 cm = 1 m
Therefore, 2500 cm is 25 m.

The conversion factor between mm and m is as follows:
1000 mm = 1 m
Therefore, 3000 mm is 3 m.

Here are all the numbers in meters.
2000 m, 25 m, 25 m, 3 m

We can quickly see that 2000 m is the longest distance. It is 2 km.

What is the vertex of the graph of f(x) = |x – 13| + 11?

Answers

Hello,

the graph of f(x) is joint here.
It has a form of "V" with (13,11) like vertex;
It is a minimum.
It is composed of 2 half straight lines y=-x-2 (for x<13) and y=x+2 (for x>13)

Answer:

x>13

Step-by-step explanation:

edge 2021

Find the value of y if given: 20y-2, 17y +3, 5x + 8, 21x

Answers

20y-2=
20y=2
20y/20=2/20
y=0.1

17y +3=
17y=-3
17y/17=-3/17
y=-0.176

What is the scale factor from ABC to DEF?

Answers

Answer:

Step-by-step explanation:

The scale factor is the ratio of corresponding sides, image to original, so

scale factor = $(EF)/(BC)$ = $(11)/(66)$ = $(1)/(6)$ → C

Five times the number of test tubes in a school’s chemistry lab exceeds three times the number of beakers it has by 660. The sum of two times the number of test tubes and five times the number of beakers is 450.If b is the number of beakers and t is the number of test tubes, the system of linear equations representing this situation is .
The number of beakers in the school’s lab is , and the number of test tubes in the school’s lab is .

Answers

$\left\{\begin{array}{ccc}5t-3b=660&|multiply\ both\ sides\ by\ 2\n2t+5b=450&|multiply\ both\ sides\ by\ (-5)\end{array}\right\n\n\underline{+\left\{\begin{array}{ccc}10t-6b=1320\n-10t-25b=-2250\end{array}\right}\n.\ \ \ \ \ \ -31b=-930\ \ \ \ |divide\ both\ sides\ by\ (-31)\n.\ \ \ \ \ \ \ \ \ \ \ \boxed{b=30}\n\nsubtitute\ the\ value\ of\ b\ to\ the\ second\ equation:\n\n2t+5\cdot30=450\n2t+150=450\ \ \ \ |subtract\ 150\ from\ both\ sides\n2t=300\ \ \ \ \ |divide\ both\ sides\ by\ 2\n\boxed{t=150}$

Answer:
The number of beakers in the school’s lab is 30, and the number of test tubes in the school’s lab is 150.

Question 24 Multiple Choice Worth 1 points)(8.01 MC)
Two lines, A and B, are represented by equations given below:
Line A: y = x - 4
Line B: y = 3x + 4
Which of the following shows the solution to the system of equations and explains why?
0 (-3,-5), because the point satisfies one of the equations
0 (-3,-5), because the point lies between the two axes
(-4,-8), because the point satisfies both equations
(-4, -8), because the point does not lie on any axis