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damaskus [11]
3 years ago
11

Julie has 15 nails. She uses 8 to build a birdhouse. She subtracts to find the number of nails left. Which addition sentence can

she use to check her work???
Mathematics
2 answers:
pav-90 [236]3 years ago
4 0

Answer:

15-8=n

Step-by-step explanation:

n=7 if its with the variable OR you could use 15 - 8 = 7. just basic subtraction

Helen [10]3 years ago
3 0

Answer:

8+7=15

Step-by-step explanation:

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Kaden works 5 days. The median number of hours he works is 3. The mean number of hours he works is 4.
alisha [4.7K]

Answer:

(a) 1, 2, 3, 6, 8

Step-by-step explanation:

Given

Median = 3

Mean = 4

Required

The sequence of hours worked each day

<em>See attachment for options</em>

From the question, we understand that:

Median = 3

This means that, the middle number is 3 (when sorted)

So, we can conclude that (b) and (c) cannot be true because their middle numbers are 6 and 5 respectively

Next, is to determine the mean of (a) and (d)

The mean of a data is calculated as:

\bar x = \frac{\sum x}{n}

So, we have:

(a)

\bar x = \frac{1+ 2+ 3+ 6+ 8}{5}

\bar x = \frac{20}{5}

\bar x = 4

(d)

\bar x = \frac{1+ 2+ 3+ 4+ 5}{5}

\bar x = \frac{15}{5}

\bar x = 3

Option (a) is true, because it has:

Median = 3

Mean = 4

7 0
3 years ago
Alisa says it is easier to compare the numbers in set A 45,760-1,025,680 than set B492,111-409,867
Marysya12 [62]
What is the question?
3 0
3 years ago
What is 1+12 just to get free brainliest​
tino4ka555 [31]

Answer:

1+12

Step-by-step explanation:

can be expressed as

1+12

=13

5 0
2 years ago
Read 2 more answers
Mrs. Byrne washed
AleksAgata [21]

Answer:

Mrs. Byrne washed more

Step-by-step explanation:

5 0
2 years ago
Which could be a first step in solving the equation
Airida [17]

A first step in solving the equation 1/4 x + 1/2 = 3/4x will be answer A multipllied by 4 on both sides.

What is an equation?

The equation is actually a relationship between the numbers and the variables.The given equation is  1/4 x + 1/2 = 3/4x

Now the solution of the equation will be:-

1/4 x + 1/2 = 3/4x

By multiplying with 4 the equation will become:-

x+2=3x

3x-x=2

2x=2

x=1

Hence the solution of the given equation will be x=1

To know more about equations follow

brainly.com/question/2972832

#SPJ1

7 0
2 years ago
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