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AVprozaik [17]
3 years ago
10

What is the solution to the following equation?

Mathematics
1 answer:
o-na [289]3 years ago
7 0
The Answer is A.


To solve the equation for x you need to find a, b and c of the quadratic then apply the quadratic formula resulting in that answer.
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FREE BRANLIES IF ANSWER WITH EQUATIONS!! URGENT
4vir4ik [10]

Answer:

7) second answer

8) first answer

4 0
3 years ago
Read 2 more answers
All of the picture please help
Sonbull [250]
A. She needs 16 quarter cups of milk.
B. Equation: 4 cups multiplied by 4(four quarter cups per cup) = 16 quarter cups

Hope this helps!!

5 0
3 years ago
A store buys a remote control robot for $60. They mark it up by 30%. What will be the selling price
exis [7]
The answer would be 78 because 10% of 60 is 6. 6 x 3 = 18 60+18=78
7 0
1 year ago
Mr. Nelson lost one of his students' test
amid [387]

Complete question :

Mr. Nelson lost one of his students' test papers. He knows that the other 4 students scored as follows: 60, 62, 56, 57. He also knows that the average score is 59.2. What is the score on the missing paper?

Answer:

61

Step-by-step explanation:

Given the following :

Total number of students = 4 + 1 missing = 5

Score on the four avaliable papers = 60, 62, 56, 57

Average score of the 5 papers = 59.2

Score on missing paper :

Sum of each score / number of papers

Sum of each score = sum of available scores + missing score

Let missing score = m

(60 + 62 + 56 + 57 + m) = 235 + m

Recall:

Average = total sum / number of observations

Hence,

59.2 = (235 + m) / 5

59.2 × 5 = 235 + m

296 = 235 + m

m = 296 - 235

m = 61

Missing score = 61

6 0
2 years ago
Can someone help me I have two more other questions they are 15 points each I just posted them right now! Thanks so much
nlexa [21]

Answer:

$10 coins: 21

$20 coins: 24

Step-by-step explanation:

heyy me again

So we can create 2 equations where

x = number of $10 coins

y = number of $20 coins:

x + y = 45

10x + 20y = 690

we can move equation 1 around so that we can get a value of x

x = 45 - y

now we can substitute x into the second equation

10(45 - y) + 20y = 690

450 - 10y + 20y = 690

10y = 240

y = 24

Now plug in y back into the first equation

x = 45 - y

x = 45 - 24

x = 21

8 0
2 years ago
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