1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fittoniya [83]
3 years ago
9

“An A grade will be given to students having at least 450 total test points. There are two more tests to take before the semeste

r is over. Lesha wants to know what she needs to score in order to get an A. Write and solve an equation to determine what score she needs to average on the next two tests if each question is with 1 point. Explain your reasoning.”
Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
4 0

<em><u>The required average on next two tests are:</u></em>

t\geq \frac{450-p}{2}

<em><u>Solution:</u></em>

An A grade will be given to students having at least 450 total test points

Let p represent her present test point total, and t represent the necessary average on the next two tests

There are two more tests to take before the semester is over

Therefore,

p+2t\geq 450

A grade is given to students having at least 450 total test points

"at least" means greater than or equal to

So we have used greater than or equal to symbol

Solve the inequality for "t"

p+2t\geq 450\\\\Subtract\ p\ from\ both\ sides\\\\2t\geq 450-p\\\\Divide\ both\ sides\ by\ 2\\\\t\geq \frac{450-p}{2}

Thus the required average on next two tests are:

t\geq \frac{450-p}{2}

You might be interested in
Brainliest , solve please (7+2)^2 + (1+1)^2​
jeka57 [31]

Answer:

85

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A truck driver has to make a delivery at a location that is 230.2 miles away. She drives an average of 55 miles each hour for 3.
Vlad [161]

Answer:

The driver will make it to the location in the next hour

Step-by-step explanation:

First, find how many miles they traveled in 3.25 hours, by multiplying 55 by 3.25:

55(3.25)

= 178.75

Then, add 55 to this to see if the driver will make it in the next hour:

178.75 + 55

= 233.75

Since this is greater than 230.2, this means they will make it to the location.

So, the driver will make it to the location in the next hour.

5 0
3 years ago
Read 2 more answers
An ant walked on the coordinate plane from point A( − 3,1) to point B(1,25) by the shortest path. Find y-coordinate of the point
konstantin123 [22]

Answer:

19

Step-by-step explanation:

The shortest path is a straight line.  The slope of that line is:

m = (25 − 1) / (1 − (-3))

m = 6

The point where the ant intersects the y-axis has an x-coordinate of 0.  The slope between that point, and any other point on the line, is 6.

6 = (y − 1) / (0 − (-3))

y = 19

6 0
3 years ago
The ratio of the radii of two distinct spheres is 3:4. what is the ratio of their respective surface areas?
Naya [18.7K]

Hey , here is the answer to ur question.....!
Given: Radii is in the ratio 3:4
To find : ratio of Surface area of the two distinct spheres
Solution: Surface area of a sphere =4* pi *r^2
=>(3/4)^2=9/16
Therefore , the ratio of the areas of teh two distinct spheres=9:16
Hope this helps u!!!!!!.........

7 0
3 years ago
Which measurements are correct? round side lengths to the nearest hundredth. check all that apply. m∠a = 57° m∠b = 15° c ≈ 10.89
Aliun [14]

The correct measurements of the surveyors movement from all the options are; m∠b = 15° and h ≈ 31.28 ft

<h3>What are the correct elevation measurements?</h3>

From the image attached, we see that;

A surveyor found the angle of elevation from the ground to the top from a point = 33°

Now, the surveyor moves 20 ft towards the building and the angle of elevation becomes 48°. This means that ∠A and 48° are supplementary to each other.

Thus;

∠A + 48° = 180°

∠A = 180 - 48

∠A = 132°

From sum of angles in a triangle;

∠B + 33° + 132° = 180°

∠B = 180 - 165°

∠B = 15°

Using sine rule, we know that;

sin 33/C = sin B/20

Thus;

sin 33/C = sin 15/20

Solving for C gives;

C = 42.22

From trigonometric ratios, h/c = sin 48

h = 42.22 sin 48

h = 31.28 ft

Read more about elevations at; brainly.com/question/10254887

5 0
3 years ago
Other questions:
  • PLEASE, FAST, could someone help me out, I'm a bit confused :// ​
    7·1 answer
  • it takes alden 6 hours to bale all the hay in a field, but his brother, anthony , can do the same job in 7 hours. if they bale a
    6·1 answer
  • What is 432 ÷ 12 plzz help I can't figure it out and it's due tomorrow​
    15·2 answers
  • Use the system of equations to answer the questions. 2x + 3y = 3, y = 8 - 3x. The value of y from the second equation is substit
    15·1 answer
  • An airplane flys 2750 miles in 5 hours. Round to the nearest .100, find unit rat, and mp second
    10·1 answer
  • Which table of ordered pairs represents a linear function?
    10·1 answer
  • (3×7)+4=26 write a situation for this equation and draw a picture that goes with it
    11·1 answer
  • Name two different line segments
    11·2 answers
  • Which of the following represents a function?
    6·1 answer
  • How do you find equivalent ratios? (Please put explanation)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!