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Levart [38]
3 years ago
8

The classroom has 4 desks in each row. There are 5 rows. How many desks are there in the classroom?

Mathematics
2 answers:
jekas [21]3 years ago
5 0
If there are 4 desks in each of the 5 rows:
Multiply: 4 times 5
Answer: 20
There would be a total of 20 desks in the classroom!
natka813 [3]3 years ago
5 0

Answer:

There are 20 desks

Step-by-step explanation:

*=desks

****

****

****

****

****

There are a total of 20 desks  (*)

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Is this the right answer?
iren2701 [21]

Hello from MrBillDoesMath!

Answer:

Yes!


Discussion:

a + b= 2a                =>  subtract "a" from both sides

a - a + b = 2a - a    =>  as (a-a) = 0 and (2a-a) = a

b = a                      (*)

Then  from (*) above

      b-a = b - b       => b-b = 0

      b -a = 0



Thank you,

MrB

8 0
3 years ago
I Nisa buy dollars worth of stock and gained $25 per year Kevin bad for hundred dollars worth of stock in the last $35 per year
alisha [4.7K]

Answer: x= 5 years and y = $225

Step-by-step explanation:

Since we have given that

Amount Nisa gained per year = $25

Amount Kevin lost per year = $35

According to question,

y=100+25x\\\\and\\\\y=400-35x

so, it becomes,

100+25x=400-35x\\\\25x+35x=400-100\\\\60x=300\\\\x=\frac{300}{60}\\\\x=5

so, For x= 5 years,

Their income of Nisa and loss of Kevin will be

y=100+25x\\\\y=100+25\times 5\\\\y=100+125\\\\y=\$225

4 0
3 years ago
What is the measure of DHF in circle H? <br> 270<br> 90<br> 220<br> 130
Natalka [10]

Answer: 220

Step-by-step explanation: 130 degrees + the 90 degree angle = 220 degrees

Hope this helps:)

3 0
3 years ago
Help!!!!!!!!!!!!!!!!!!!!!!!!!!
lana [24]
3.78 x 10^9 = 3780000000 = 3,780,000,000

3,780,000,000 / 14,000 = 270,000

270,000 = 2.7 x 10^5
8 0
3 years ago
If x-9 is a factor of x-5x-36 what is the other factor
dimaraw [331]
The other factor would be (x + 4). We can find this by using synthetic division. To do this, we must first find the divisor, which would be 9, if we let x - 9 equal to zero and solve for x. Then, for the dividend, we can use the coefficients and constant term values. 
<u>9</u>| 1  -5  -36
<u>         9  36</u>
     1  4  0
Therefore, the other expression (x + 9) would be (x + 4). Hope this helped!
4 0
3 years ago
Read 2 more answers
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