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nexus9112 [7]
3 years ago
15

The equation y=10x represents a proportional relationship. What is that constant of proportionality?​

Mathematics
2 answers:
VikaD [51]3 years ago
5 0

Answer:

10

Step-by-step explanation:

lara31 [8.8K]3 years ago
4 0

Answer:

k = 10

Step-by-step explanation:

The standard form of a proportional relationship is

y = kx ← k is the constant of proportion

y = 10x ← is in standard form

with k = 10

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An investor has an account with stock from two different companies. Last year, his
Lesechka [4]
22.7%

Given that last year stock for company A was $7200
The stock for company B last year was worth $3510
Stock in company A decreased by 24%
This means the new value of stock for company A became;
(100-24)/100 *$7200
76/100*$7200
0.76*7200 =$5472
Stock in company B decreased by 20%
This means the new value of stock for company B became;
(100-20)/100 *$3510
80/100*$3510
0.8*$3510
$2808
Original investors stock value was = $7200+$3510 =$10710
New investors stock value is = $5472+$2808=$8280
Decrease in value of stock = $10710-$8280 =$2430
percentage decrease in stock value = decrease in stock/original value of stock *100%
=2430/10710 *100 =22.689
=22.7%

Someone else had the same problem answered
So here it is
7 0
3 years ago
Two lighthouses are located 60 miles from one another on a north-south line. If a boat is spotted S 21o E from the northern ligh
jasenka [17]

Answer:

(A)The northern lighthouse is 8.2 miles closer than the southern lighthouse.

Step-by-step explanation:

The triangle attached represents the given problem.

First, let us determine the distance of the Boat from each of the lighthouse.

In Triangle ABC,

∠A+∠B+∠C=180 degrees

21+∠B+16=180

∠B=180-37=143 degrees.

Using Law of Sines

\frac{a}{Sin A}=\frac{b}{Sin B}\\\frac{a}{Sin 21^0}=\frac{60}{Sin 143^0} \\\text{Cross Multiply}\\a*sin143=60*sin21\\a=60*sin21\div sin143\\a=35.73 miles

Similarly

\frac{c}{Sin C}=\frac{b}{Sin B}\\\frac{c}{Sin 16^0}=\frac{60}{Sin 143^0} \\\text{Cross Multiply}\\c*sin143=60*sin16\\c=60*sin16\div sin143\\c=27.48 miles

Difference in Distance =35.73-27.48=8.25 miles

Therefore, the northern lighthouse is 8.2 miles closer than the southern lighthouse.

8 0
3 years ago
The Scatter Plots rock band played to a large crond on Wednesday,
docker41 [41]

Answer:

228 boys

Step-by-step explanation:

3:2

342:228

342/3=114

114 times 2 =228

6 0
3 years ago
What is the unit rate if the candy is $7.80 for 2 pounds?
shutvik [7]

Answer:

= 3.9 candy per pound

Step-by-step explanation:

This is a fraction equal to

7.8 candy ÷ 2 pounds

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 2

7.8 candy        ÷ 2

________

2 pounds ÷ 2

=  

3.9 candy

_______

1 pound

=  

3.9 candy

_______

pound

= 3.9 candy per pound

7 0
2 years ago
What is the answer pls
faust18 [17]

Answer:

-5 × -5 × -5

Step-by-step explanation:

-5^3 = -5 × -5 × -5

7 0
3 years ago
Read 2 more answers
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