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Vladimir [108]
2 years ago
7

The table shows your test results for math class. What test score do you need on the last exam to earn 90% of the total points?

Mathematics
1 answer:
Nady [450]2 years ago
4 0

Answer:

262.6/300% for the first 3 test if you were to add another test it would be 400% total and you need 360% of test grades to have an average of 90% and so 360 - 262.6 = 97.4%

Step-by-step explanation:

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Katherine is younger than Alexandra. Their ages are consecutive integers.
Serjik [45]

Using equations to solve the word problem, Katherine's age is 8 years

<h3>Word Problem</h3>

Word problem are often mathematical problem that are represented in words and sometimes can be solved using an equation.

To solve this problem, we have to represent the problem using mathematical equations;

Let;

Katherine's age = x²

Alexandra = 5(x + 1)

Sum of their age = 109

5(x + 1) + x² = 109

5x + 5 + x² = 109

x² + 5x - 104 = 0

Solving for the equation; x = 8

Katherine's age is 8

Learn more on word problem here;

brainly.com/question/13818690

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7 0
1 year ago
Please help ASAP help please due soon
Lunna [17]

Answer:

75 in^2

Step-by-step explanation:

The surface area is the sum of the areas

Area of the square:

A = s^2 = 5^2 =25

Area of one triangle

A = 1/2 bh = 1/2 (5)(5) = 25/2

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The sum is 25+50 = 75

8 0
3 years ago
Read 2 more answers
Solve the system algebraically. 3x - 2y - 1 = 0 y = 5x + 4 What is the solution? {(-9/7,-17/7)} {(9/7,17/7)} {(9/7,-17/7)}
lutik1710 [3]
3x - 2y - 1 = 0
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3x - 2(5x + 4) - 1 = 0
3x - 10x - 8 - 1 = 0
-7x - 9 = 0
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x = -9/7

y = 5x + 4
y = 5(-9/7) + 4
y = -45/7 + 4
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solution is (-9/7, -17/7)
3 0
3 years ago
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seropon [69]

Answer:

D) 8

Step-by-step explanation:

3x - 7 - 2x + 5 = 6

3x - 2x  = 6 + 7 - 5

  x   = 8

Note: 6 + 7 -5 =  13 -5 = 8

7 0
3 years ago
Ryan called each school in the district to determine whether or not they have a recycling program. What is true about Ryan’s dat
AlekseyPX
<span>A.) Ryan conducted a survey where he asked about qualitative data</span>
8 0
3 years ago
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