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3 years ago

Write 2 subtraction equations to show how to find 15-7

Mathematics

1 answer:

Mnenie [13.5K]3 years ago

6 0

So 15-7 is 8

Here are some things I did:

10-2 or 28-20

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Break a part the array to show 8×6=(4×6)+(4×6)

Maksim231197 [3]

8×6= 48
4×6=24, 24+24=48

or

(4×6)+(4×6)=2×4×6=8×6

6 0

3 years ago

Help me please and thank you

fiasKO [112]

Since the triangles are the same, just flipped that means that all angles and segments are the same as well

I'm not sure if that's the "correct" way to prove it but that's why they're equal

5 0

2 years ago

Read 2 more answers

A man leaves home at 22:15 hours and reaches his destination at 04:00 hours on the following day. how many hours did the journey

Nezavi [6.7K]

Answer,

Leaves from home=22:15hour

get to destination=4:00hour

time taken on a journey,

from time 22:15hour to 24:00hour=2:45hour and,

time is taken form 22:00hour to 4:00hour=4:00hour
So, the total time taken to reach the destination is 2:45+4:00=6:45hour

8 0

2 years ago

Hey im new, could someone help me???<br> evaluate 3(2)(-1)

asambeis [7]

3(2)(-1)= 3×2×-1= 3×2=6×-1=-6 -6 is the answer

7 0

3 years ago

Read 2 more answers

The following are the annual salaries of 15 chief executive officers of major companies. (The salaries are written in thousands

Alisiya [41]

Answer:

The 25th percentile is 248.

The 70th percentile is 700.

Step-by-step explanation:

The pth percentile is a data value such that at least p% of the data-set is less-than or equal to this data value and at least (100-p)% of the data-set are more-than or equal to this data value.

Arrange the data set in ascending order as follows:

S = {75 , 157 , 224 , 248 , 271 , 381 , 472 , 495 , 586 , 676 , 700 , 723 , 743 , 767 , 1250}

The formula to compute the position of the pth percentile is:

$p^{th} \text{Percentile}=\frac{(n+1)\cdot p}{100}$

Compute the 25th percentile as follows:

$25^{th} \text{Percentile}=\frac{(15+1)\cdot 25}{100}=4^{th}obs.$

The 4th observation from the arranged data set is 248 .

Thus, the 25th percentile is 248.

Compute the 70th percentile as follows:

$70^{th} \text{Percentile}=\frac{(15+1)\cdot 70}{100}\approx 11^{th}obs.$

The 11th observation from the arranged data set is 700.

Thus, the 70th percentile is 700.

4 0

2 years ago