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Alina [70]
3 years ago
5

A school library has 200 DVDs in its collection. Given that 40% of the DVDs are about science and 45% are about history, how man

y of the DVDs are about other subjects?
Mathematics
2 answers:
gregori [183]3 years ago
5 0

Answer:

15% so 30 dvds

Step-by-step explanation:

200 * 45% = 90 dvds

200 *40% = 80 dvds

200 - (90 + 80) = 30

now check

200 * 15% = 30 dvds

Paladinen [302]3 years ago
4 0

Answer:

The last 15 percent of that would be 39

Step-by-step explanation:

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Help someone how do you solve this
Flauer [41]

Answer:

a = 10/3

Step-by-step explanation:

This can be written as:

x^{2} (x^{4})^{1/3}  = x^{a}

Anything to the power of 1/3 means to find the cube root. We can simplify this to:

x^{2} (x^{4/3}) = x^{a}

I just multiplied 4 and 1/3 (because of the second index law (a^{m})^{n}  = a^{mn}). Now, we can add the powers because the bases are the same and we are multiplying (first index law):

x^{10/3} = x^{a}

a = 10/3

Hope this helps!

5 0
2 years ago
Please help me out!​
Elden [556K]

Answer: C Its a non-perfect Square.

5 0
3 years ago
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Find the equation of a line through (2,-4) and (-7,-4)
steposvetlana [31]
---------------------------------------------
Find slope : 
---------------------------------------------
\text {Slope = }  \dfrac{-4 - (-4)}{-7-2}  =  \dfrac{0}{-9}  = 0

When the slope is 0, the graph is a horizontal line.

Equation of the graph is y = -4

------------------------------------------------------
Answer: y = -4
------------------------------------------------------

3 0
3 years ago
What are three 2-digit numbers that divide into 1520?
vlada-n [284]
1520 ÷ 10 = 152

1520 ÷ 20 = 76

1520 ÷ 40 = 38
7 0
3 years ago
HELPPPP, I can’t figure it out
Furkat [3]

Answer:

The red robins score was higher.

Step-by-step explanation:

This is because, their score was in the postives and the aliens were in the negatives

8 0
2 years ago
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