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
algol13
3 years ago
14

Mandy scored 88, 94, 82, and 89 on her math tests. What is the least score she can earn on her next math test to have a mean of

90 or more
Mathematics
1 answer:
Anika [276]3 years ago
5 0
She would have to score at least a 97% on her next math test.

Mean = 88 + 94 + 82 + 89 + 97 = 450
450/5 = 90

You could have found this answer without using trial and error.
If she wants to get a mean of 90 and she will have 5 tests, you can multiply these together.
This equals 450.
Now you need to find the minimum score she needs to get. Take 450 and subtract what the original 4 numbers equal, 353.
This gives you 97.
I hope that makes sense :)
You might be interested in
I'm horrible with adding words to math, and I'm incapable of talking so I couldn't do the audio assignment.
aev [14]

Answer:

Do you have any key words from the unit?


Step-by-step explanation:


8 0
3 years ago
What percent is five out of 12
Andru [333]

Answer:

41.66666

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
45 units and is centered at
mariarad [96]

The correct question is:

A circle has a radius of 45 units and is centered at (-2.4, -4.8).

What is the equation of this circle?

Answer:

Equation of the circle is;

(x + 2.4)² + (y + 4.8)² = 2304

Step-by-step explanation:

The standard equation of a circle is;

(x - a)² + (y - b)²  =  r²

where;

(a,b) is the center of the circle and r is the radius of the circle

Now, from the question, the circle is centered at (-2.4, -4.8) and the radius is 45

Thus, plugging those values into the standard form of equation of a circle, we have;

(x - (-2.4))²  +  (y - (-4.8))²  = 48²

This gives;

(x + 2.4)² + (y + 4.8)² = 2304

3 0
3 years ago
Can someone please help me with this question.
Ber [7]

Answer:

square root of 2

Step-by-step explanation:

Sides are 1 and 1 and the hypotenuse is the longest side (opposite the right angle)

We can use pythagerouses theorem : a^2+b^2=c^2

this means that 1^2+1^2=c^2

1+1=c^2

2=c^2

c=2/sqrt

c is the square root of 2

the hypotenuse is the square root of 2

4 0
2 years ago
What is 2x-6 = 3x+1-X-7 and you have to regroup/ divide by number next to x?
Elena L [17]

Answer:

infinite solutions

Step-by-step explanation:

2x-6 = 3x+1-X-7

Combine like terms

2x-6 = 3x-x +1-7

2x-6 = 2x -6

subtract 2x from each side

-6 = -6

Since this is a true statement, x can be any real number

5 0
3 years ago
Other questions:
  • Thomas buys a cardboard sheet that is 12 by 8 inches. Create an equation for this situation, find the zeros, and sketch the func
    14·1 answer
  • Which of these answers is closest to zero-2, 0.2, 1, 1/2
    12·1 answer
  • What is the median of this graph?
    5·1 answer
  • Which equation is the inverse of y = 100 – x2? y = plus-or-minus StartRoot 100 minus x EndRoot y = 10 plus-or-minus StartRoot x
    8·2 answers
  • What is the value of
    15·2 answers
  • What is the result of subtracting the second equation from the first? -3x+2y=7 -3x-2y=4
    8·1 answer
  • you have only nicole's and dimes in your piggy bank. when you ran the coins through a change counter, it indicated you have 595
    10·1 answer
  • What is 4/8 as a precent
    10·2 answers
  • PLS HELP ASAP!tysm if u help me!<3
    14·1 answer
  • 12) You can exchange $5 US dollars for L123 Honduran Lempiras. How many dollars can you exchange L2,300 for? ----​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!