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sammy [17]
3 years ago
13

Anna completes a test that had 120 questions for a math competition. Each correct answer is worth +4 points, and each wrong answ

er is worth -2 points. Anna finishes the entire test and receives a score of zero. How many correct and incorrect answers did she have?
Mathematics
2 answers:
Sloan [31]3 years ago
8 0

Answer:

40 correct and 80 incorrect

Step-by-step explanation:

40*4=160

80*2=160

Mademuasel [1]3 years ago
8 0

Answer: 40 Correct and 80 Incorrect

Step-by-step explanation: Every answer she gets correct, she can afford to get 2 answer wrong meaning the number of incorrect answers must be twice the amount of correct. 40(4)=160 80(-2)=160 which evens out to zero

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True [87]

Given:

Compound shape

To find:

The area of the compound shape.

Solution:

The compound shape is splitted into two parallelograms.

<u>Bottom parallelogram:</u>

Base = 7.5 cm

Height = 5 cm

Area of the parallelogram = base × height

                                           = 7.5 × 5

                                           = 37.5 cm²

The area of the Bottom parallelogram 37.5 cm².

<u>Top parallelogram:</u>

Base = 7.5 cm

Height = 4.5 cm

Area of the parallelogram = base × height

                                           = 7.5 × 4.5

                                           = 33.75 cm²

The area of the top parallelogram 33.75 cm².

Compound shape = 37.5 + 33.75

                               = 71.25 cm²

The area of the compound shape is 71.25 cm².

7 0
3 years ago
Is 1/4 greater than, less than or equal to 2/3<br>​
Romashka-Z-Leto [24]

Answer:

Less than

Step-by-step explanation:

1/4 = 0.25 and 2/3 is approximately 0.67 so 1/4 is less than 2/3

8 0
3 years ago
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Andrews [41]

Answer:

=24

Step-by-step explanation:

what is the answer to 7x - 10y + 12 if x = 6 and y = 3?

7x 6    -   10x3   + 12

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