If a positive integer is cubed, it equals 216. What is the value of the same integer if it is squared, instead of cubed

Sixty-four percent of the students correctly described the process of photosynthesis. If 63 students did not correctly describe

olganol [36]

Answer:

Number of students who correctly describe the process = 112 students.

Step-by-step explanation:

From the information provided in the question;

64% correctly described the process of photosynthesis.

63 students didn't describe correctly the process of photosynthesis.

We are to find the number of students that did correctly describe the process of photosynthesis.

First of all we need to find the total number of students.Lets represent this value to be x

percentage of students who incorrectly describe the process = (100-64)%

=36%

$\frac{36}{100}*x =63$

x= 63*100/36

x=175 students.

FIRST METHOD

Number of students who correctly describe the process = $\frac{64}{100}*total number of students$

= $\frac{64}{100}*175$

Number of students that correctly describe the process = 112 students.

SECOND METHOD

Number of students who correctly describe the process = Total number of students- number of students who didn't correctly describe the process

Number of students who correctly describe the process = 175-63

Number of students who correctly describe the process = 112 students.

8 0

3 years ago

A paperweight is shaped like a triangular pyramid. The base is an equilateral triangle. Find the surface area of the paperweight

stich3 [128]

Answer:

The surface area of the paperweight is $SA=8.3\ in^2$

Step-by-step explanation:

we know that

The surface area of the triangular prism is equal to the area of its triangular base plus the area of its three triangular lateral faces

so

Find the area of its triangular base

$SA=\frac{1}{2}(2)(1.7)$

$SA=1.7\ in^2$

Find the area of its three triangular lateral faces

$SA=3[\frac{1}{2}(2)(2.2)]$

$SA=6.6\ in^2$

Adds the areas

$SA=1.7+6.6$

$SA=8.3\ in^2$

4 0

4 years ago

What is the exact volume of the cone? Radius is 9cm and the height is 6cm.

masha68 [24]

Answer:

The volume of the cone is 508.94

8 0

4 years ago

What is the equation for this graph pls help me and pls make sure it’s right:))

SVETLANKA909090 [29]

Answer:

y = 5x + 4

Step-by-step explanation:

First I found the slope by using the the definition that slope is rise/run so I saw that the y value went up from 4 to 9 which is 5 units and then the x value went up one in that same time. This means that the slope is 5/1. Then I found the y intercept by seeing where x = 0. On the graph you can see the line touches the y - axis at a value of 4 which means that the y - intercept is 4. Plugging these values into the y = mx + b equation you get y = 5x + 4.

8 0

3 years ago

Read 2 more answers

2. A square window has an area of 788 in2.

Xelga [282]

PART A:
1) plug in values given to you in the area formula: A=b^2--> 788=s^2
2) solve for x: x=28.071

PART B:
1) find he perimeter formula of a square: P=4s s being a side
2) plug in the value you got for part a as s: P=4(28.071) therefore, P=112.285

4 0

4 years ago