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2 years ago

Describe how you regroup when you find the sum of 64 + 43

1 answer:

4 0

When you regroup you are basically breaking down the problem.
You would do 60 + 40=?
Then you would do 4 + 3= ?
Your answer would come out to 107

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404 students were surveyed about their preferences of sports. 126 students like football, 131 students like baseball, and 40 stu

butalik [34]

20 like football
20 like baseball

6 0

2 years ago

Find the range of allowable values based on a measure of 130 inches if the values can vary by 1.4%.

olganol [36]

Answer:

130 ± 1.82 inches i.e the range of the values is 128.18 inches to 131.82 inches.

Step-by-step explanation:

The range of values required here implies the values fall between the least and maximum values.

Since the values can vary by 1.4%, the range can be determined by:

1.4% of 130 = $\frac{1.4}{100}$ x 130

= 0.014 x 130

= 1.82

The addition or subtraction of 1.82 to/from 130 inches gives the required range.

i.e the range of allowable values = 130 ± 1.82 inches.

Thus,

130 - 1.82 = 128.18 inches

130 + 1.82 = 131.82 inches

The values falls between 128.18 inches to 131.82 inches.

6 0

2 years ago

The weight of Jacob’s backpack is made up of the weight of the contents of the backpack as well as the weight of the backpack it

Dafna11 [192]

If the backpack (b) contains only textbooks (t) and notebooks (n), the total weight of the backpack is:

b+t+n

but notebooks are 4 pounds, so actually:

b+t+4

also, the backpack weights 2 pounds, so the total weight is:

2+t+4 =t+6
now, "Seventy percent of <span> the total weight is textbooks. ", this means that

t=70%(t+6) - this equation can be used to determine the weight of the textbooks!
</span>

7 0

2 years ago

Read 2 more answers

Susan is attending a talk at her son's school. There are 8 rows of 10chairs where 54 parents are sitting. Susan notices that eve

kozerog [31]

Answer:

The largest possible number of adjacent empty chairs in a single row is 3

Step-by-step explanation:

The parameters given are;

The number of chairs = 8 × 10 = 80 chairs

The number of parents = 54

Sitting arrangements of parents = Alone or to one other person

Therefore;

The maximum number of parents on a row = 1 + 1 + 0 + 1 + 1 + 0 + 1 + 1 + 0 + 1 = 7

Hence when the rows have the maximum number of parents occupying the seats we have for the 8 rows;

7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 = 56

But there are only 54 parents, therefore, up to the 7th row will have 7 parents while the 8th row will have only 5 parents to make the possible sitting arrangement to be as follows;

7 + 7 + 7 + 7 + 7 + 7 + 7 + 5 = 54

The sitting arrangement for the 8th row is therefore

1 + 1 + 0 + 1 + 1 + 0 + 1 + 0 + 0 + 0

Hence there will be three empty seats in the 8th row making the largest possible number of adjacent empty chairs in a single row = 3.

4 0

2 years ago

Victoria had $200 in her account at the end of one year. At the first of each subsequent year she deposits $15 into the account

makkiz [27]

Answer:

im guessing 3 because it makes the most sense to me

hope it helped

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers