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Deffense [45]
3 years ago
11

if Ms. sanchez has 32 students in her class, about how many students earned a grade of 80% or higher? about how many earned more

than 90%? explain how you know.

Mathematics
2 answers:
stealth61 [152]3 years ago
8 0
Um, the picture is kind of blurry otherwise I can help since I am pretty good with this...
wolverine [178]3 years ago
8 0
32×80÷100=25. 32×90÷100=28
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A box contains 5 plain pencils and 7 pens. A second box contains 5 color pencils and 5 crayons. One item from each box is chosen
juin [17]

Answer:

5/12 first pack

5/10 second pack

8 0
3 years ago
Help plz! loads of points!
babunello [35]

I think it would be ''(A) 5 cm on the map represents 50m in chicago''

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3 0
3 years ago
15 POINTSSS AND BRAINLIEST
Ludmilka [50]
1.) 52:97.5
2.) 1:1.875

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5 0
2 years ago
Mr. Gonzales is replacing a cylindrical air-conditioning duct. He estimates the radius of the duct by folding a ruler to form tw
GalinKa [24]

Answer:

  • <em><u>5.6875 in</u></em>

Explanation:

At the point of tangency, the <em>tangent </em>to a circle and the <em>radius</em> form a right triangle (the radius is perpendicular to the tangent).

Here you are given the length of the tangent (6in), and the distance from the bisected vertex to the circle (2.75 in)

I tried to upload the drawing but the tool is not allowing it now.

In the figure:

  • The length of the tangent (6 in) is one leg of the triangle
  • The distance from vertex and the circle (2.75in)  along with the radius forms the hypotenuse of the right triangle: 2.75 + r.
  • The other leg is the radius, r.

Then, you can use Pythagorean theorem:

  • (r)² + (6)² = (r +2.75)²

Solve:

  • r² + 36 =  r² + 5.5r + 7.5625
  • 5.5r = 36 - 7.5625
  • 5.5r = 28.4375
  • r = 5.6875

The solution is in inches: r = 5.6875 inches ← answer

4 0
2 years ago
In Part C, you determined that the proper ratio of packages of buns, packages of patties, and jars of pickles is 3:2:4. If you w
aivan3 [116]

Answer: packages of buns: 100

              packages of patties: 67

               jars of pickles: 133

(100,67,133)

Step-by-step explanation: packages of buns: B

                                            packages of patties: P

                                            jars of pickles: J

B:P:J = 3:2:4

B + P + J = 300

Let x be the number we must multiply the numbers to obtain the quantity and keep the ratio.

Bx + Px + Jx = 300

3x + 2x + 4x = 300

x = 300/9

So,

3.300/9 = 100

2.300/9 = 66.6666

4.300/9 = 133.333

As we cannot buy 0.666 or 0.33 of patties and pickles, we round up

So: packages of buns: 100

              packages of patties: 67

               jars of pickles: 133

7 0
3 years ago
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