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
wlad13 [49]
3 years ago
11

Josie's last four test scores in math were 82 89 92 87. what score on her next test will give her an average of 89 or above

Mathematics
1 answer:
liraira [26]3 years ago
8 0
Take the 89 times 5 tests. You get 445 total score you need for an average of 89.  Add 82, 89, 92, 87=350 445-350=95  They must get a 95 on next test to get the average of 89
You might be interested in
Write the equation of the line that
zlopas [31]

Answer:

y=-1/2x+2

Step-by-step explanation:

First, the slope of perpendicular line have negative reciprocal coefficients. In this case the coefficient is 2, The reciprocal of 2 is 1/2 and the negative of 1/2 is -1/2. So x will have a coefficient of -1/2.

Second, find the equation with a slope of -1/2 that passes through (-2,3). There are a few ways to do this. I like to plug the given x value into the expression -1/2x, so -1/2(-2) which equals positive 1 and for the line to pass through the point (-2,3) you need to add 2. So: y=-1/2x+2

8 0
2 years ago
The length of one side of a triangle is 2 feet less than three times the length of its second side. The length of the third side
seropon [69]

Answer:

  • 7 feet, 3 feet, 7.5 feet

Step-by-step explanation:

Let the sides be a, b and c.

<h3>Given</h3>

The length of one side of a triangle is 2 feet less than three times the length of its second side

  • a = 3b - 2

The length of the third side is 3/4 of the sum of the lengths of the first two sides:

  • c = (3/4)(a + b)

The perimeter of the triangle is 17.5 feet:

  • a + b + c = 17.5

<h3>Solution</h3>

Substitute a with b in the second equation:

  • c = (3/4)(3b - 2 + b) = (3/4)(4b - 2) = (3/4)(4b) - (3/4)(2) = 3b - 1.5

Now substitute a and c with b in the third equation and solve for b:

  • a + b + c = 17.5
  • 3b - 2 + b + 3b - 1.5 = 17.5
  • 7b - 3.5 = 17.5
  • 7b = 17.5 + 3.5
  • 7b = 21
  • b = 3

Find the value of a:

  • a = 3b - 2 = 3*3 - 2 = 9 - 2 = 7

Find the value of c:

  • c = 3b - 1.5 = 3*3 - 1.5 = 9 - 1.5 = 7.5

The sides of the triangle are:

  • a = 7 feet, b = 3 feet, c = 7.5 feet

8 0
2 years ago
Rectangle ABCD is graphed in the coordinate plane. The following are the vertices of the rectangle:
Tamiku [17]

Answer: 16 units

Step-by-step explanation:

Point A and Point B are 5 units apart on the x-axis.

Since this is a rectangle, the opposite side is equivalent.

Point A and Point C are 3 units apart on the y-axis.

Same thing applies for these points.

5+5+3+3=16 units

7 0
3 years ago
Construct Triangle QRS if QS =8cm, angle SQR
lana66690 [7]

Answer:

a. 1 triangle

Step-by-step explanation:

measure line QS=8.cm measure 85°on side Q

5 0
3 years ago
I need a answer please
victus00 [196]
The answer is b jfoejrofneroiqfnioenvineqi
6 0
4 years ago
Other questions:
  • Can somebody help me with this question?
    6·2 answers
  • Please Please Help Me In These Questions: 1-5!!!!! I Give Thanks!!!! Graph, Table, and the Questions are included.
    14·1 answer
  • 3x multiplied x+7 =?
    11·1 answer
  • Find the product of 6x^2(x+4)(x-5)
    12·1 answer
  • A town has a population of 7,000 and grows at 15% every year.what will be the population after 12 years,to the nearest whole num
    14·1 answer
  • A triangular prism is 40 feet long and has a triangular face with a base of 24 feet and a height of 35 feet. The other two sides
    6·1 answer
  • Pls help me no one helps me
    6·1 answer
  • A different store needs to make at least $20,000 to make a profit in March. They average $685 a day for the month. James used ro
    15·1 answer
  • What dose f(-2)=3 mean?
    7·2 answers
  • Help me with this question please!! :)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!