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wlad13 [49]
2 years ago
14

47 POINTS PLZZ HELP ASAP

Mathematics
1 answer:
Tju [1.3M]2 years ago
8 0

Answer:

c is the answer

Step-by-step explanation:

so we know one equation

y=6x+15

we need to find the other one

24-10=14

14 miles in 2 hours

7 miles in 1 hour

y=7x+10

henry's ballon begins at 10 miles from the town and is 24 miles from the town in 2 hours

Where henry starts is 10 the y-intercept

look at the slopes

Henry: y=7x+10

Tasha: y=6x+15

Tasha starts farther away

Henry goes farther

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Lydia has half of her investments in stock paying an 11% dividend and the other half in a stock paying 14% interest. If her tota
SVETLANKA909090 [29]

Based on the calculations, the amount of money she invested is equal to $3,520.

<h3>How to determine the amount invested?</h3>

First of all, we would assign variables to the amount of money that he invested at different interest rates as follows:

  • Let x be the amount of money she invested at 11%.
  • Let y be the amount of money she invested at 14%.

Since Lydia invested the same amount of money in both stocks, we have:

x = y     ....equation 1.

At the two interest rates, the total amount Lydia gets is given by:

0.11x + 0.14y = 440     ....equation 2.

Solving the equations simultaneously, we have:

0.11y + 0.14y = 440

0.25y = 440

y = 440/0.25

y = $1,760.

Thus, the total investment is given by:

Total investment = 1760 + 1760

Total investment = $3,520.

Read more on interest rates here: brainly.com/question/16793428

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1 year ago
What is the name of the symbol used to denote square root?
kiruha [24]
I believe the term is a "radical"
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2 years ago
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a pice of wire 80 inches long is cut into 2 pieces. One piece is 5 inches more than twice the other. How long is the shortest pi
ad-work [718]

The longer piece of wire is 42.5

The shorter piece of wire is 37.5

37.5+42.5=80

37.5 matches the requirements because it is 5 smaller than 42.5 :)

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3 years ago
Find the surface area of a cylinder with a diameter of 18 and a height of 32. Use 3.14 for π. Round your answer to the nearest t
Ksenya-84 [330]

Answer: a = 2,315.5

Step-by-step explanation:

a = 2πrh+2πr²

a = 2π(9)(32) + 2π9²

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a = 2,315.5

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3 years ago
A taxicab service charges a flat fee of $7 plus an additional $1.25 per mile driven. Show the relationship between the total cos
Zarrin [17]

Answer with Step-by-step explanation:

We are given that

Flat fee of taxicab=$7

Cost of one mile=$1.25

1.We have to show that relationship between total cost and the number of miles driven.

2.We have to find independent variable and dependent variable

3.We have to write an equation to model the relationship and make a  table to show the cost of 4 to 10 miles.

1.Let x be the number of miles driven by taxicab and total cost y of taxicab.

According to question

y=1.25x+7

This is a relation between number of miles drive and total cost.

2. Independent variable : It is that variable which does not depend on value of another variable .

Dependent variable : it is that variable which depend on value of  another variable.

We can see that y depend on x and value of x does not depend on  any value.

Therefore, y is dependent variable and x is independent variable.

Substitute x=4 then we get

y=1.25(4)+7=$12

Substitute x=5 then  get

y=1.25(5)+7=$13.25

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y=1.25(8)+7=$17

y=1.25(9)+7=$18.25

y=1.25(10)+7=$19.5

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3 years ago
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