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3 years ago

13

I have a 74 average in my math class, And I get a 100 on my quarter finals exam the exam is 30 percent of my grade what is my gr

ade after I get a hundred on my quarter final exam
(23 points btw)

1 answer:

KonstantinChe [14]3 years ago

5 0

Answer:

u will have a 100 meaning a A+

Step-by-step explanation:

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What is 839467 divided by 8

tino4ka555 [31]

It is
104933.375
:))

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3 years ago

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A running track is1/3 of a kilometre. What is the total distance a runner travels if he goes four times around track

Zarrin [17]

Since the track is 1/3 kilometre all you have to do is multiply 1/3 x 4!

When you do that you get that the runner would travel 4/3 kilometre or 1 & 1/3 kilometre of the track.

3 0

3 years ago

The weights of items produced by a company are normally distributed with a mean of 4.5 ounces and a standard deviation of 0.3 ou

GalinKa [24]

Answer:

The right solution is:

(a) 0.8849

(b) 12.28%

(c) 4.9935

(d) 28004

Step-by-step explanation:

Given:

Mean,

= 4.5

Standard deviation,

= 0.3

(a)

P(x > 4.14)

As we know,

⇒ $z = \frac{4.14-4.5}{0.3}$

$=-1.20$

then,

⇒ $P(z>-1.20) = P(z$

$=0.8849$

(b)

P(4.8 < x < 5.04)

= $P(\frac{4.8-4.5}{0.3} < \frac{x-\mu}{\sigma} < \frac{5.04-4.5}{0.3} )$

= $P(1$

= $P(z$

= $0.9641 -0.8413$

= $0.1228$

or,

= $12.28$ (%)

(c)

P(x > x) = 0.05

z value will be,

= 1.645

⇒ $1.645 = \frac{x - 4.5}{0.3}$

$x = 4.9935$

(d)

P(x < 5.01)

⇒ $z = \frac{x- \mu}{\sigma}$

$=\frac{5.01-4.5}{0.3}$

$=1.7$

P(z < 1.70) = 0.9554

⇒ $n = \frac{27875}{0.9954}$

$=28004$

3 0

3 years ago

A pair of shoes cost $52 and a dress was $70 at Belk. Abigail has a coupon for 25% off at the register. The sales tax for Cobb C

miskamm [114]

Answer:

$98.82

Step-by-step explanation:

Given data

A pair of shoes cost $52 and a dress was $70 at Belk

Total expenses

= 52+70

= $122

coupon = 25%

=25/100* 122

=0.25*122

= $30.5

Tax= 6%

= 6/100*122

= 0.06*122

= $7.32

Hence the total is

= 122-30.5+7.32

= 91.5+7.32

= $98.82

5 0

3 years ago

A 0.5 kg block is moving at constant speed on a horizontal surface. the friction force acting on the block is 20N, calculate uk

AlexFokin [52]

The friction force is equal to the normal force by the object equal to the weight of the object multiplied by the coefficient of friction. In this case, we substitute to the equation
4.9 N * 9.8 m/s2 = 20 N * ukuk is equal then to 0.245.

4 0

4 years ago