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Dvinal [7]
3 years ago
14

NEED HELP !!!!!Write an equation for the following proportional relationships. ( x/y ) a. 1/2.5 b . 6/18 C. 5/22.5 d. 4/17​

Mathematics
1 answer:
lutik1710 [3]3 years ago
6 0

Answer:

x=21

Step-by-step explanation:

add 11 and 11

then you will get 21

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Trash-A-way charges $25 per month with an additional $0.25 per pound of trash that they pick up from your house. Garbage -No-Mor
goldenfox [79]

25 + 0.25x=45

0.25x=20

x= 20/0.25 = 80

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3 0
3 years ago
Which proportion could be used to find the length of side b?​
Goshia [24]

Answer:

B

Step-by-step explanation:

Using the Sine Rule in ΔABC

\frac{a}{sinA} = \frac{b}{sinB} = \frac{c}{sinC}

∠C = 180° - (82 + 58)° = 180° - 140° = 40°

Completing values in the above formula gives

\frac{a}{sin58} = \frac{b}{sin82} = \frac{8.4}{sin40}

We require a pair of ratios which contain b and 3 known quantities, that is

\frac{b}{sin82} = \frac{8.4}{sin40}

OR

\frac{sin40}{8.4} = \frac{sin82}{b} → B

8 0
3 years ago
Read 2 more answers
( use elimination) on 3x+5y=12 and x-3y=4
Elena L [17]

Answer:

x=4 y=0

Step-by-step explanation:

3x+5y=12

-(x-3y=4)

3x+5y=12

3(-x+3y=-4)

3x+5y=12

-3x+9y=-12

14y=0

y=0

Then, substitute the y into the equation to find x

x-3(0)=4

x=4

7 0
2 years ago
Which fraction equals 4?
Ilya [14]

Answer: 8/2

Step-by-step explanation:

7 0
2 years ago
Cortez's workout plan involves a total of 65 minutes of running and swimming. he burns 11 calories per minute when running and 9
Aleks [24]

The equation to model this would be 65 = 11r + 9s.

In this equation, we know that the total number he works is 65. We also know he burns 11 every time he runs for an hour. Therefore we can multiply 11 by r. We also know he burns 9 for every hour he spends swimming. Therefore we can multiply 9 by s.

When we put all three of these things together, we get 65 = 11r + 9s.

6 0
3 years ago
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