All categories

3 years ago

Can someone help me please explanation needed as well

Mathematics

1 answer:

erik [133]3 years ago

4 0

Answer:

$5.50

Step-by-step explanation:

k lets say x=movies while y=games

so, lets make a system of equations

2x+3y=14.50

3x+y=9.50

you can do substitution or elimination here it doesn't matter but you get x=2; y=3.5

movies cost 2 bucks, while games cost $3.50

so total is 3.50+2

if you still want instruction on how to solve a system of equations leave a comment and i'll help

You might be interested in

Cans of regular Coke are labeled as containing 12 oz. Statistics students weighted the content of 5 randomly chosen cans, and fo

marishachu [46]

Answer: 0.0078

Step-by-step explanation:

We assume that cans of Coke are filled so that the actual amounts are normally distributed with a mean of 12.00 oz and a standard deviation of 0.12 oz.

As per given , we have

$\mu=12.00\ oz$ and $\sigma=0.12\ oz$

Sample size : n= 5

Let $\overline{X}$ be the sample mean amount of coke in can.

Then, the probability that a sample of 5 cans will have a mean amount of at least 12.13 oz will be :_

$P(\overline{x}\geq12.13)=1-P(\overline{x}$

$=1-P(z$

$= 1-0.9922=0.0078$ [By using z-table]

Hence, the required probability = 0.0078

6 0

3 years ago

Dennis and Ivy share some sweets between them in the ratio 7:4 Dennis got 42 sweets. How many does ivy get

MrRa [10]

Answer:

$Ivy = 24$

Step-by-step explanation:

Given

$Dennis : Ivy = 7 : 4$

Required

Determine the amount of sweet Ivy gets when Dennis = 42

We have:

$Dennis : Ivy = 7 : 4$ and

$Dennis = 42$

Substitute 42 for Dennis in $Dennis : Ivy = 7 : 4$

$42 : Ivy = 7 : 4$

Convert to fraction

$\frac{42}{Ivy} = \frac{7}{4}$

Cross Multiply:

$Ivy * 7 = 42 * 4$

Divide through by 7

$\frac{Ivy * 7}{7} = \frac{42 * 4}{7}$

$Ivy = \frac{42 * 4}{7}$

$Ivy = 6* 4$

$Ivy = 24$

6 0

3 years ago

A group of teenagers was asked where they prefer to study and do homework. Their results are shown in the table below. Place Num

Trava [24]

Answer:

C). Circle Graph

Step-by-step explanation:

As per the question, a 'circle graph' would be most adequate to display that the majority of the teenagers prefer to do their study and homework in their bedrooms. A circle graph or pie-chart represents the data in a visually appealing manner using colors to display various proportions of the data that makes it easy to understand for the readers. Thus, more than half of the circle filled with the same color will clearly hint that most of the teenagers love doing their studies in their bedroom. Thus, option C is the correct answer.

6 0

3 years ago

I need help with #13

iren2701 [21]

B) m= 1/2
you would use slope formula to find what line passes through those coordinates

7 0

3 years ago

What is the length of each leg of the triangle below?

iragen [17]

Answer:

option A

Step-by-step explanation:

since the given triangle is an isosceles triangle it's two remaining sides are equal

let the length of missing side be x

using pythagoras theorem

a^2 + b^2 = c^2

x^2 + x^2 = 22^2

2x^2 = 484

x^2 = 484/2

x = $\sqrt{242}$

x = $11\sqrt{2}$

3 0

3 years ago