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Tpy6a [65]
4 years ago
13

An Olympic runner set a record for the 100m dash.

Mathematics
1 answer:
DiKsa [7]4 years ago
5 0
10.62 seconds

ignore:
(i am writing this bc i need at least 20 characters)
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When eight times an unknown number is decreased by 208 the result is four times the unknown number.
Naddika [18.5K]
I think

This is your typical algebra question where you are looking for an unknown value given some information. The information can be set up as:
8 - x = 4*(x +3)

Distribute the 4:
8 - x = 4x + 12

Rearrange to get variables on one side:
8 - 12 = 4x + x

Simplifiy:
-4 = 5x

Isolate the variable:
-4/5 = x
6 0
4 years ago
The Pythagorean Theorem
PilotLPTM [1.2K]

Answer:

a²+b²=c²

Step-by-step explanation:

a= side of right triangle

b= side of right triangle

c= hypotenuse

5 0
4 years ago
Read 2 more answers
Cassie bought a pair of loafers for $29.95. Tights were on sale for 3 pairs for $10.00. She gave the clerk $60.00. How much chan
monitta

Answer:

$20.05 is Cassie's change

Step-by-step explanation:

60.00-29.95=30.05

30.05-10=20.05

5 0
3 years ago
Estimate the original volume of the pyramid in Fig. 15.28, given that its frustum has a 4 m by 4 m square top which is 12 m vert
puteri [66]

The volume of the pyramid is 2496 cu.m.

<h3>What is a Pyramid ?</h3>

A pyramid is a three dimensional structure which has a polygon base and  in general triangular faces which join at the top .

It is given that

A pyramid \rm frustum has a 4 m by 4 m square top

Height = 12 m

Base = 20 m

The volume of a square pyramid with a  \rm frustum is given by

V = (1/2) * ( Area of base + Area of  \rm frustum ) * height of the  \rm frustum from the base

V = 0.5 * ( 20 *20 + 4*4 ) * 12

V = 2496 cu.m

The volume of the pyramid is 2496 cu.m.

To know more about Pyramid

brainly.com/question/13057463

#SPJ1

8 0
2 years ago
Divide (-7x+x^2+15)/(-3+x) please this is the last question on the test!
Vesna [10]
Your answer should be -x+3
3 0
3 years ago
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