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Levart [38]
3 years ago
15

There are 90 students in Grade 5, and 10% of them were absent today.In Grade 6, 15% of the 80 students were absent today.What wa

s the total number of students in the two grades who were present today?
Mathematics
1 answer:
podryga [215]3 years ago
3 0

Answer:

21 students

Step-by-step explanation:

90 x .10 = 9

80 x .15 = 12

9 + 12 = 21 students

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Simplify Square root of 49^8
Taya2010 [7]

Answer:

well i got 5,764,801 lol

Step-by-step explanation:

i did 49^8 and got 3.3233 x 10^13

then took the square root of that and got 5,764,801

4 0
3 years ago
Read 2 more answers
A laptop computer is purchased for $1500 after each year the resale value decreases by 25% what will the resale value be after t
Wittaler [7]

<u>Answer</u>:

The resale value after three years = $ 632.8125‬

<u>Explanation</u>:

Given the laptop purchase for $1500

Therefore, the cost price = $1500

According to the question, the resale value decreases by 25%,

Then after three years, the resale value is

Resale Value = \text { cost Price }\left(1-\frac{r}{100}\right)^{\text {time }}

Substituting the values,

Resale Value = 1500\left(1-\frac{25}{100}\right)^{3}

Resale Value = 1500\times (\frac{3}{4})^3

Resale Value = 1500\times \frac{3}{4}\times \frac{3}{4}\times \frac{3}{4}

Resale Value = $632.8125‬

Therefore, the resale value after three years = $ 632.8125‬

3 0
3 years ago
Help I need help I don’t know how to do this
juin [17]
8x²-18xy-5y²

8x²+2xy-20xy-5y²

2x(4x+y) -5y (4x+y)


= (2x-5y) (4x+y)
3 0
3 years ago
1/2(12w+8) -1/5(10w-5) find the difference
Nat2105 [25]

1/2(12w+8) -1/5(10w-5) = 4w + 3 or 4w + 5

( im kinda confused on this myself)

7 0
3 years ago
Read 2 more answers
What are the lower bound estimate and the upper bound estimate found by rounding to the greatest place?
vovangra [49]
Greatest place is the hundreds place so 800 - 200 = 600
Or 760 - 240 = 520 you can round the 520 to 500
Upper and lower bounds accordingly
So 600 and 500.
6 0
3 years ago
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