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madam [21]
3 years ago
14

An Algebra I test contains 30 questions. Some of the questions are worth 4 points each, and some are worth 2 points each. The to

tal test is worth 100 points. Let f represent the number of questions worth 4 points and t, the number of questions worth 2 points.
Mathematics
1 answer:
Roman55 [17]3 years ago
6 0

Answer:

Step-by-step explanation:

f+t=40 and 4f+2t=100

4f+2t=120

4f+2t=100

2t=20

t=10

So f=20

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Yes you are correct with that answer
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I’m not sure how to slove this problem it’s a equilateral triangle and I’m trying to find out what the side is equal to.
Lerok [7]

Answer:

AB = 5/4 y - 1  = 5/4 (12/13) -1 = 2/13

AC= 7/3 y - 2 = 7/3 (12/13) -2 = 2/13

Step-by-step explanation:

Because it is a equilateral triangle, it means all sides have the same length.

AB = AC

5/4 y - 1 = 7/3 y - 2

5/4 y - 7/3 y = -2 +1

-13/12 y = -1

y = 12/13

input y to the equation.

AB = 5/4 y - 1  = 5/4 (12/13) -1 = 2/13

AC= 7/3 y - 2 = 7/3 (12/13) -2 = 2/13

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6 0
3 years ago
Your grade at the start of quarter 3 was a 68, at the end of the quarter it was a 91. What is the percent change in grade?
Georgia [21]
91 - 68 = 23
23/91 x 100= 25.3%
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3 years ago
Here are the median Annual Salaries for two different people: Level of Education Bachelor's Degree Master's Degree Median Annual
Pavlova-9 [17]

Answer: $547200

Median salary of masters older is 68,100

Total after 36 years= 68,100*36 = $2,451,600

Median Salary of BSc holder is $52,900

Total median salary after 36 years is 52,900*36 = 1,904,400

The difference is $2,451,600-1,904,400 = 547,200

The person with Masters will earn $547,200 after 36 years

Step-by-step explanation:

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How many cups of walnuts are needed to make 3.75 batches of muffins? One batch of walnut muffins uses 1.33
1.13x3=3.39
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3 years ago
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