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lyudmila [28]
3 years ago
13

The formula for figuring a​ student's average test score A is A equals = StartFraction p Over t EndFraction p t ​, where p is th

e total points earned on all the​ tests, and t is the number of tests. Find a​ student's average when 345 points are earned on 5 tests.
Mathematics
1 answer:
RideAnS [48]3 years ago
7 0

Answer:

Average = 69.

Step-by-step explanation:

A = p /t

When p =345 and t = 5

A = 345 /5

= 69.

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What are the solutions of 5x+23>2x−4​?
zhuklara [117]

Answer:

answer :

x >  - 9

solution:

step 1 :

5x  - 2x >  - 4 - 23

step 2 :

3x >  - 27

step 3 :

x >  \frac{ - 27}{3}

final step :

x >  - 9

4 0
2 years ago
What is the volume of a sphere with a diameter of 3.2 m, rounded to the nearest tenth
frez [133]

Answer:

Volume of a sphere = 17.164 m³ (Approx)

Step-by-step explanation:

Given:

Diameter of a sphere = 3.2 m

Radius of a sphere = Diameter / 2 = 3.2 / 2 = 1.6 m

Find:

Volume of a sphere = ?

Computation:

Volume\ of\ a\ sphere =\frac{4}{3}\pi \times r^3 \\\\Volume\ of\ a\ sphere =\frac{4}{3}\times \frac{22}{7}  \times (1.6)^3 \\\\Volume\ of\ a\ sphere =\frac{4}{3}\times \frac{22}{7}  \times 4.096\\\\Volume\ of\ a\ sphere =17.164

Volume of a sphere = 17.164 m³ (Approx)

4 0
2 years ago
Q3. If I = (P × R × T)/100, find T if I = 80 Rs, P = 400 Rs., R = 10 Rs. (2)
sukhopar [10]

9514 1404 393

Answer:

  T = 2

Step-by-step explanation:

Fill in the given numbers and solve for T.

  I = PRT/100

  80 = 400·10·T/100

  80 = 40T . . . . . . . . . . . . simplify

  80/40 = T = 2 . . . . . . . . divide by the coefficient of T

4 0
3 years ago
Read 2 more answers
A department store buys 100 shirts at a cost of $2,400 and sells them at a selling price of $30 each.
Kamila [148]

Answer:

There is a 25% markup

Step-by-step explanation:

First find the original cost of each shirt

$2400/ 100 shirts

$24/ shirt

Mark up = ( new price - original price) / original price

               = ( 30-24) / 24

               = 6/24

               = 1/4

                = .25

                 25%

There is a 25% markup

3 0
3 years ago
Read 2 more answers
What is 8x-12y+32=<br> please help me!
nika2105 [10]
ANSWER:

4 ( 2x - 3y + 8 )

8x - 12y + 32 in factorised form is equivalent to:
4 ( 2x - 3y + 8 ).

STEP-BY-STEP EXPLANATION:

8x - 12y + 32 in factorised form is ~

= 8x - 12y + 32

GCF = 4

THEREFORE:

= 4 ( 2x - 3y + 8 )
6 0
3 years ago
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