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Brrunno [24]
3 years ago
5

21 students in a dass wear spectacles. This is 60% of the total number of

Mathematics
2 answers:
wlad13 [49]3 years ago
7 0

Answer:

There are 35 students in the class

Step-by-step explanation:

We would divide 21 by 60%

21/0.6 = 35 students.

Natalija [7]3 years ago
3 0

Answer:

35 students are in the class

Step-by-step explanation:

21/x 60/100

cross multiply so you will get

2100 = 60x

divide each side by 60x

2100/60 = 35

21 students out of 35

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3 years ago
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Put the fractions in order smallest to largest<br> 7/10, 2/3 , 4/5, 11/15
Brrunno [24]

Answer:

Step-by-step explanation:

2/3, 7/10, 11/15, 4/5

8 0
3 years ago
what is the volume measured in cubic centimeters, of the box below? do not include units in your answer
Karo-lina-s [1.5K]

Answer:

60

Step-by-step explanation:

V = lwh

V= 4x3x5

V=60

7 0
3 years ago
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Polygon R and polygon S are similar. The perimeter of polygon R is 136 cm, and the perimeter of polygon S is 64 cm. If one side
e-lub [12.9K]

<u>Answer </u>

Option A) 17cm

<u>Explanation </u>

Polygon R and polygon S are similar. This means the polygon R and S have equal number of sides.

Step 1 : Find the number of sides of polygon S

The perimeter of polygon S is 64 cm. If one side of polygon S is 8 cm

Therefore, Number of sides of polygon S = 64/8 = 8 sides

and number of sides of polygon R = 8 side

Step 2 : Find the number of sides of polygon R

The perimeter of polygon R is 136 cm,  

Number of sides of polygon R = 136/8 = 17 cm

Therefore side length of  polygon R = 17 cm

6 0
3 years ago
Point o is the center if the circle. what is the value of x? mn and mp are tangent to
mrs_skeptik [129]

Answer:

x=66

Step-by-step explanation:

Since  MN and MP are tangent to circle O, they create 90° angles at the points of intersection.

We also know that this is a quadralateral, so the interior angles add up to 360.

We can make an equation with this information.

114+90+90+x=360

294+x=360

x=66

7 0
3 years ago
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