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3 years ago

Omar divided a circular pizza into 8 equal sections. He gave his friend

Mathematics

1 answer:

strojnjashka [21]3 years ago

5 0

Answer:

the amount he gave his friend is a positive fraction, therefore to the right of 0 on the number line. the decimal is 3/8 which = 0.375

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QUESTION 1 Evaluate −30 ÷ −6. a 5 b −5 c 6 d −6 QUESTION 2 Evaluate 62 ÷ (3 + 9). a3 b4 c12 d21 QUESTION 3 Danny made a mistake

Mashcka [7]

Answer:

A; ?; Line 3

Step-by-step explanation:

Question 1:

-30 divided by -6 is 5.

The negatives cancel each other out.

And 30 divided by 6 is simply 5.

Question 2:

$62\div(3+9)$

Do the operation inside the parenthesis first:

$62\div12$

Divide. 12 does not go into 62 evenly. 12 times 5 is 60, so the answer is 5 remainder 2:

$62\div12=5\text { R}2$

Or in fractions:

$31/6$

(Was there a typo? From what you've given me, the correct answer is not listed.)

Question 3:

So we have to following steps:

$\text{Line 1: } 21+35\div7+6(2)\\\text{Line 2: }21+5+6(2)\\\text{Line 3: }21+11(2)\\\text{Line 4: }21+22\\\text{Line 5: }43$

The mistake is in Line 3. Danny cannot just combine 5+6(2) into 11(2). Instead, he should multiply 6(2) and then add. Thus, the correct solution is:

$\text{Line 1: } 21+35\div7+6(2)\\\text{Line 2: }21+5+6(2)\\\text{Line 3: }21+5+12\\\text{Line 4: }26+12\\\text{Line 5: }38$

3 0

3 years ago

Of(x) = (x + 3)(x + 7)

Musya8 [376]

Answer:b

Step-by-step explanation:

4 0

4 years ago

Part A and Part B , help please !

miss Akunina [59]

Part A

2:7 x 10:x

7 x 10=70 and 2 x x= 2x.

70 divided by 2 is 35, So for 10 the actual is 35 ft.

2:7 x 20:x

7 x 20= 140 and 2 x x=2x.

140 divided by 2 is 70, So for 20 the actual is 70 ft.

Part B

35 x 0.30=10.5

70 x 0.30=21

10.5+21=31.5

$31.5

5 0

4 years ago

Mari and Kai's test scores are shown below: Mari: 72, 80, 90, 73, 74, 90 Kai: 56, 63, 70, 100, 32, 23 If Kai and Mari both got a

mezya [45]

Answer:

A. Kai

Step-by-step explanation:

1st Step - find the average test scores for Mari and Kai

Mari: 72 + 80 + 90 + 73 + 74 + 90 = 479

479 ÷ 6 (total number of tests) = 79.8 (Average test score for Mari)

Kai: 56 + 63 + 70 + 100 + 32 + 23 = 344

344 ÷ 6 (total number of tests) = 57.3 (Average test score for Kai)

2nd Step - Now each student got a 100 on the next test (the 7th test). So add 100 to the initial total.

Mari: 479 + 100 = 579

579 ÷ 7 (new total number of tests) = 82.7 (New average test score for Mari)

Kai: 344 + 100 = 444

444 ÷ 7 (new total number of tests) = 63.4 (New average test score for Kai)

3rd Step - find the difference between Mari's test scores. then find the difference between Kai's test scores to see who will have the greatest increase in math grade.

Mari: 82.7 - 79.8 = 2.9

Kai: 63.4 - 57.3 = 6.1

6.1 is greater than 2.9

8 0

3 years ago

A school recieved 20 boxes of different stickers.12 boxes contain floral stickers, 14 boxes were with 3-D stickers. There were 6

mrs_skeptik [129]

Answer:

Step-by-step explanation:

5 0

3 years ago

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