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anzhelika [568]
3 years ago
15

A school assembly had 90 students in attendance, and 80% of them were first-graders. How many first-graders were at the assembly

?
Mathematics
2 answers:
puteri [66]3 years ago
6 0

Answer:

72

Step-by-step explanation:

80/100=4/5

4/5 * 90 = 72

Sav [38]3 years ago
5 0

the answer is 72! Hope this helps! :)

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Insert a rational number between 3 and 3.5
lorasvet [3.4K]

A rational number is any number that can be made into a fraction and is either repeating or stops when in decimal form.

Rational numbers between 3 and 3.5 would be 10/3 (3.33 repeating), and 13/4 (3.25).

Hope this helps!! :)

8 0
3 years ago
Read 2 more answers
Help me please please.
Romashka [77]

9514 1404 393

Answer:

 $6.56

Step-by-step explanation:

The value is found by multiplying:

  32% of $20.51 = 0.32 × $20.51 = $6.5632 ≈ $6.56

8 0
3 years ago
Does anyone know what the answer is?​
Makovka662 [10]
21 I think. 21/14=12/8
4 0
3 years ago
a rectangles width is 6 feet less than its length. if the area of the rectangle is 247 square feet what is its length in feet
mestny [16]

Answer:

The answer is

<h2> 19 feet</h2>

Step-by-step explanation:

Area of a rectangle = length × width

let w be the width and l be the length

Area of rectangle = 247 ft²

width is 6 feet less than its length is

w = l - 6

247 = l( 1 - 6)

l² - 6l - 247 = 0

(l + 13) (l - 19) = 0

l + 13 = 0 l - 19 = 0

l = - 13 l = 19

Since the length should be positive

The length of the rectangle is

<h3> 19 feet</h3>

Hope this helps you

8 0
3 years ago
Read 2 more answers
Sketch the graph of each line <br> y=1/4x-1<br><br>​
Hitman42 [59]

Step-by-step explanation:

We need only two points to the plotting a graph of a line.

for x = 0

y=\dfrac{1}{4}(0)-1=0-1=-1\to(0,\ -1)

for x = 4

y=\dfrac{1}{4\!\!\!\!\diagup}(4\!\!\!\!\diagup)-1=1-1=0\to(4,\ 0)

4 0
3 years ago
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