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
uranmaximum [27]
3 years ago
12

Correct answers only please!

Mathematics
2 answers:
Mariulka [41]3 years ago
8 0

I got 71%, by finding out the individual percents and adding them up. Don’t know if that’s how you solve it, but it’s an answer choice, so makes enough sense to me.

Travka [436]3 years ago
5 0

Answer:

1st Question

A. 85

2nd Question  

B. 71

Step-by-step explanation:

1st Question

<em>{90 + 94 + 96 + 90} = 370/4 = 92.5</em>

<em>{95 + 99}                  = 194/2 = 97</em>

<em>{87 + 75 + 82 + 85} = 329/4 = 82.25</em>

<em>{71}                =  71/1               = 71</em>

<em>.20(92.5) +.25(97) +.30(82.25) +.25(71) = 85.175  Rounded-up = 85</em>

____________________________________________________

2nd Question

<em>.10(95) +.20(80) +.50(67) +.20(60) = 71</em>

You might be interested in
Write the first trigonometric function in terms of the second for θ in the given quadrant.. sec θ, sin θ; θ in quadrant I
Grace [21]

We have sec  = 1/cos

Then we also have  cos^2 = 1 – sin^2

Also we have cos = sqrt (1 – sin^2)

Substitute the derived cosine function to sec then we have

Sec = 1/(sqrt(1-sin^2)

3 0
3 years ago
Using the quadratic formula to solve 5x = 6x2 – 3, what are the values of x?
soldi70 [24.7K]

Answer:

x_1=1.23\\x_2=-0.40

Step-by-step explanation:

Given a quadratic equation in the form ax^2+bx+c=0, you can use the Quadratic formula to solve it. This is:

x=\frac{-b\±\sqrt{b^2-4ac}}{2a}

Then, you need to subtract 5x from both sides of the equation given:

5x-5x=6x^2-3-5x\\0=6x^2-5x-3

You can identify that:

a=6\\b=-5\\c=-3

Then, substituting values into the Quadratic formula, you get:

 x=\frac{-(-5)\±\sqrt{(-5)^2-4(6)(-3)}}{2(6)}

x_1=1.23\\x_2=-0.40

3 0
3 years ago
Read 2 more answers
forty children from an after-school club went to matinee. this is 25% of the children in the club. how many children are in the
Firlakuza [10]
25% of 40 is 40 times 25 divided by 100 which is 10 (number of children in the club)
4 0
3 years ago
Read 2 more answers
Find the value of each variable 4y 3x 8 12​
Scilla [17]

Answer:

4x812y3

Step-by-step explanation:

5 0
3 years ago
(a) An angle measures 39º. What is the measure of its complement?
Basile [38]

Answer:

a) 51 degrees

b) 134 degrees

Step-by-step explanation:

39+51=90

46+134=180

8 0
3 years ago
Other questions:
  • Factor the polynomial with GCF
    5·1 answer
  • Jina is saving money to buy a game. So far she has saved $36 , which is three-fourths of the total cost of the game. How much do
    10·2 answers
  • Divide and write in simplest form 2 3/8 divided by 1 3/4
    11·1 answer
  • How many different pairs of parallel edges are there on a rectangular solid?
    12·1 answer
  • Solid:<br> What is the surface area of the pyramid?<br> units
    13·1 answer
  • Please solve this 6-3 log2n=0
    10·2 answers
  • HELP ME!! Solve 1/2(10x + 6) + 3/4 (8x + 3)
    13·2 answers
  • Express it in slop-intercept form​
    12·1 answer
  • Simplify. -y -7x + 7y<br> The simplified expression is ___y - ____x.
    8·1 answer
  • Help please . Thank you !!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!