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IgorC [24]
3 years ago
13

What is 8+9=z z=? please help

Mathematics
2 answers:
aliina [53]3 years ago
7 0

Answer:

z=15

Step-by-step explanation:

8+9=z

<=>15=z

Or z=15

So z=15

Students in Vietnam do like this. I'm not sure if your country presents it this way.

Masteriza [31]3 years ago
6 0

Answer:

17

Step-by-step explanation:

fug hr rn htghttthhuyyyyyyyyygggyt

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Find the LCM of a(a+b)-b(b+c)-c(a+c) and c(b+c)-a(a+c)<br>​
mash [69]

Answer:

I know what you're asking you are asking to find the least common multiple. However all I can find is the GCF which is 1

Step-by-step explanation:

5 0
3 years ago
John can type 45 words per min (45/min) he has to type a report for Mrs. Ramey that must be 2700 words. How many hours will it t
Sav [38]

Answer:

It will take 1 hour to type the report.

Step-by-step explanation:

The time that will take to John to type the report is:

\frac{1 min}{45 w}*2700 w = 60 min

Since we have 60 minutes in 1 hour, the time in hours is:

\frac{1 h}{60 min}*60min = 1 h

Therefore, it will take 1 hour to type the report.

I hope it helps you!

5 0
3 years ago
1) Solve the following system of equations algebraically. Give your solution as two
Bad White [126]

For this case we have the following system of equations:

y = x ^ 2 + 7x + 12\\y = 2x + 8

Equating both equations we have:

x ^ 2 + 7x + 12 = 2x + 8\\x ^ 2 + 7x-2x + 12-8 = 0\\x ^ 2 + 5x + 4 = 0

We must find the solutions, for this we factor. We look for two numbers that, when multiplied, result in 4 and when added, result in 5. These numbers are 4 and 1:

4 + 1 = 5\\4 * 1 = 4

Then, the factorized equation is of the form:

(x + 4) (x + 1) = 0

Thus, the solutions are:

x_ {1} = - 4\\x_ {2} = - 1

We look for solutions for the variable "y":

y_ {1} = 2 (-4) + 8 = -8 + 8 = 0\\y_ {2} = 2 (-1) + 8 = -2 + 8 = 6

Thus, the system solutions are given by:(x_ {1}, y_ {1}): (- 4,0)\\(x_ {2}, y_ {2}): (- 1,6)

ANswer:

(x_ {1}, y_ {1}): (- 4,0)\\(x_ {2}, y_ {2}): (- 1,6)

8 0
3 years ago
Norah has $50,000 to invest. She is considering two investment options. Option A pays 1.5% simple interest. Option B pays 1.4% i
NikAS [45]

Answer:

<u>Option A</u>

5 years: $53,750

10 years: $57,500

20 years: $65,000

<u>Option B</u>

5 years: $53,599

10 years: $57,458

20 years: $66,028

6 0
3 years ago
Read 2 more answers
A school had a girl:boy ratio 5.4.
Ilya [14]

Answer:

164

The 982 part seems wrong. Are you sure it isn't 981?

around 436 if I use 981 instead. 982 would give a decimal and that would be kinda weird for a part human.

Step-by-step explanation:

You can divide the 205 by 5 to simplify the ratio down. 205/5 = 41. Then you can multiply by 4 to find then number of boys.

981

So you can add the 5 and 4 together to 9 and then divide 981 by 9 to get 109. Then you can multiply by 4 to get 436.

Hope this helps!

8 0
2 years ago
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