Harriet used the work below to determine the percent equivalent to 1/8. step 1: 1/8=? /100 step 2: 8 divided by 100 = 0.08 step 3: 0.08 multiplied by 1 = 0.08 step 4: 0.08 what was harriet’s error? -in step 1, she set up the proportions incorrectly. - in step 2, she divided 8 by 100 instead of 100 by 8, so she cannot multiply the numerator by the factor. -in step 3, she multiplied the numerator instead of the denominator by the factor. -in step 4, she forgot to move the decimal.

Step 2 shows the error.

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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