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malfutka [58]
3 years ago
9

Can someone help me with this?

Mathematics
1 answer:
Wewaii [24]3 years ago
7 0
<span>3x+4=y+5, then y+5=3x+4
It is called: reflexive property

-----------------------------
</span>
<span>x = y and y = 10, then x = 10
It is called: equality substitution property  
</span>

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tom had a platter of chocolate wafers. he ate 5 of them and then gave his brother 3 he then moved on to his baseball team of 8 m
Aloiza [94]

Tom started with total 72 chocolate wafers.

<u><em>Explanation</em></u>

The number of chocolate wafers taken by 8 members of the baseball team are in the sequence :  1, 3,5,7,9,11,13,15

The above sequence is <u>arithmetic sequence</u> with first term(a₁)= 1 and common difference (d) = 2

<u>Formula for Sum</u> of first n terms in arithmetic sequence is....

S_{n}= \frac{n}{2}[2a_{1}+(n-1)d]

So, the Sum of 8 terms in that sequence....

S_{8}= \frac{8}{2}[2(1)+(8-1)(2)]\\ \\ S_{8}= 4[2+7(2)]\\ \\ S_{8}=4(2+14)\\ \\ S_{8}=4(16)=64

That means, the total number of chocolate wafers taken by the baseball team members is 64.  Tom ate 5 and then gave his brother 3 chocolate wafers at first.

So, the total number of chocolate wafers at starting =64+5+3=72

6 0
3 years ago
The Table below is a data set that lists how many pairs of shoes are owned by some of your classmates.
Pani-rosa [81]

Answer:

7.5

Step-by-step explanation:

<u>To find the median, first order the numbers from least to greatest:</u>

2, 4, 5, 7, 8, 8, 10, 12

<u>Then, find the middle number (number in the middle):</u>

There are 2 middle numbers. 7 and 8.

Because there are 2 numbers, we need to find the average. If there was only one number, that would be the median.

<u>To find the average, add 7 and 8. Then, divide the sum by 2 because there are 2 numbers;</u>

7 + 8 = 15

15 / 2 = 7.5

Have a nice day!

8 0
3 years ago
Your round-trip drive to work is 4 3/10 miles. How many miles do you drive to and from work in 3 days?
lisabon 2012 [21]
12.9 would be the correct answer.
4 0
3 years ago
How many strands of small-diameter copper wire does stranded copper wire normally contain within its insulating jacket?
eimsori [14]

The lowest number of strands usually seen is 7 ... one in the middle
and 6 surrounding it.

The next level up is 19, which is another layer of 12 strands on top
of the 7.

After that the number varies, but 37 and 49 are common, then in
the 70 to 100 range (the number is no longer exact).  Even larger
numbers than that are typically found in very large cables.

3 0
3 years ago
Read 2 more answers
Factor 64a^2 - 48a + 9. <br> A(8a + 9)(8a - 1)<br> B(8a - 3)^2 <br> C(4a + 3)(16a - 3)
Jobisdone [24]
(8a-3)(8a-3)..........
5 0
2 years ago
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