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Strike441 [17]
3 years ago
5

You estimate that there are 45 marbles in a jar. The actual amount is 82 marbles. Find the percent error. Round to the nearest t

enth of a percent.
Mathematics
1 answer:
Nataly_w [17]3 years ago
6 0

Answer:

45.1

Step-by-step explanation:

The original amount is 82

But the wrong amount is 45

So we will have to calculate the percentage for the error

82-45

37

So %error= 37/82 ×100

=3700/82

=45.121~45.1( to nearest tenth)

So the final answer is 45.1%

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What are both of the blanks?? Y= [ ]x+ [ ]
vitfil [10]
Perpendicular: the slope will be -6
Pass the point: Since we know slope is -6, then (-6)*(-3) + ? = 23 -> ? = 5
So answer: y = -6x + 5
7 0
3 years ago
What is the equation of a line passing through 1,2 and -2,5
AleksAgata [21]

Answer:

y=-1x+3

Step-by-step explanation:

2-5/1+2

-3/3

-1

y=-1x+b

2=-1+b

b=3

y=-1x+3

3 0
3 years ago
If janie has 3045 apples and Lilly had 4599 apples what's the difference
marin [14]

Answer: 1554 apples

Step-by-step explanation: In order to find the distance you have to subtract the biggest number from the smallest number.

4599 - 3045 = 1554 apples

8 0
3 years ago
What’s the answer to this equation?
Tresset [83]

Answer:

Part A) The graph in the attached figure

Part B) see the explanation

Step-by-step explanation:

Part A) Graph the function

we have the quadratic function

y=3x^2-12x-36

This is a vertical parabola open upward

The vertex is a minimum

using a graphing tool

The graph in the attached figure

Part B) What are the values of a, b and c?

we know that

The values of a and b represent the x-intercepts of the quadratic equation

The x-intercepts are

(-2,0) and (6,0)

so

a=-2\\b=6

Find the value of c

we know that

The x-coordinate of the vertex in a vertical parabola is equal to the midpoint of the roots

so

The value of c is equal to

c=\frac{a+b}{2}

substitute the given values

c=\frac{-2+6}{2}=2

see the attached figure

7 0
3 years ago
A car company makes 2 types of cars: luxury and sport. Each luxury car costs the company $15,000 for parts and requires 1,600 ma
Mademuasel [1]

Answer:

luxury=15

sports cars 25

Step-by-step explanation:

Step one:

let the luxury cars be x

and the sports cars be y

the objective function is

maximize

15000x+16000y=625000------1

the constraints are

1. Man-hours

1600x+1500y=61500-----------2

Step two:

the system of equation for the situation is

15000x+16000y=625000------1

1600x+1500y=61500-----------2

let us reduce both equation

divide equation 1 be 1000

and equation 2 by 100 we have

15x+16y=625--------1 x15

16x+15y=615--------2 x16

  225x+240y=9375

 -256x+240y=9840

=-31x+0=-465

31x=465

x=465/31

x=15

put x=15 in 15x+16y=625 we have

15(15)+16y=625

225+16y=625

16y=625-225

16y=400

y=400/16

y=25

3 0
3 years ago
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