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3 years ago

Evaluate the following

Mathematics

1 answer:

fgiga [73]3 years ago

6 0

12C5 = 792 5P4 = 120

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Mary and Mike went to the store to buy colored pencils for their science class.mike bought a 12-pack for 1.69,and Mary bought a

sweet-ann [11.9K]

12-pack for 1.69 is a better buy

Solution:

Given that, Mike bought a 12-pack for 1.69 and Mary bought a 24-pack for 3.18

We have to find which is the better buy

First we have to find the unit rate

Unit rate is cost of 1 pack

Mike bought a 12-pack for 1.69

Therefore,

Cost of 12 pack = 1.69

Cost of 1 pack is found by dividing 1.69 by 12

$cost\ of\ 1\ pack = \frac{1.69}{12} = 0.14083$

Thus unit rate of Mike is 0.14083 dollar per pack

Mary bought a 24-pack for 3.18

Cost of 24 pack = 3.18

Cost of 1 pack is found by dividing 3.18 by 24

$cost\ of\ 1\ pack = \frac{3.18}{24} = 0.1325$

Thus unit rate of Mary is 0.1325 dollars

On comparing both the unit rate

$0.14083>0.1325$

Thus unit rate of Mike is larger

Thus, 12-pack for 1.69 is a better buy

3 0

3 years ago

A bag contains 16 green marbles, 12 red marbles, 15 white marbles, and 7 black marbles. What is the probability of drawing a gre

Hoochie [10]

the probability will be $\frac{desired \space\ outcomes}{total \space\ possible \space\ outcomes}$

desired=green=16

total possible=all marbles=16+12+15+7=50

probability= $\frac{16}{50}=$ 32%

it's a 32% probability to get a green marble

7 0

3 years ago

An SUV is traveling at a speed of 18 m/s.if the SUV had a mass of 1,550kg, what force must be applied to stop it in 8seconds?

olya-2409 [2.1K]

To solve this question, we have to find the acceleration of the car first. Acceleration refers to the rate of change of velocity of an object with respect to time.
Acceleration [A] = [V0 - V1] / T
Where VO = Initial velocity and V1 = Final velocity T represent time.
V0 = O
V1 = 18
T = 8
A = [ 0 - 18] / 8 = - 2.25
A = - 2.25 M/S^2.
To find force, we are going to use the formula: F = MA
F = ?
M = 1550
A = - 2.25
F = 1550 * - 2.25 = 3487.5
Therefore, F = -3487.5 N

6 0

4 years ago

|8| + |-4| Evaluate the Expression

shtirl [24]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Suppose that G(x)=F(x-6)-3. Which statement best compares the graph of G(x) with the graph of F(x)? Te graph of G(x) is the grap

Marta_Voda [28]

THat would be 6 units to the right and 3 units up.

B