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Salsk061 [2.6K]
3 years ago
13

Systems of equations 5x+y=7 20x+2=y

Mathematics
1 answer:
saveliy_v [14]3 years ago
7 0

Step-by-step explanation:

5x+y=7

20x+2=y

put y value in first equation

5x+(20x+2)=7

25x=5

x=5

now put x value to determine y

as we know 20x+2=y

20(5)+2=y

y=102

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A line has a slope of negative 3 and a y-intercept of 3 what is the x intercept of the line​
Naily [24]

Answer:

1

Step-by-step explanation:

y = mx+b where m is the slope and b is the y intercept

y = -3x +3

We want to find the x intercept

Set y = 0 and solve for x

0 = -3x+3

Subtract 3 from each side

-3 = -3x

Divide each side by -3

-3/-3 = -3x/-3

1 =x

5 0
3 years ago
Which would be the better buy 5 gallon bucket of paint for $97.45 or 1 gallon bucket of paint for $21.95
Leviafan [203]

Answer:

5 gallons for 97.45

Step-by-step explanation:

5x21.95=109.75 which is more

3 0
3 years ago
A store that sells skis buys them from a manufacturer at a wholesale price of $63. The store’s markup rate is 50%. a. What price
Reptile [31]

a. The store charges $94.5 for the skis

b. 150% of the original price is the final price

Step-by-step explanation:

The given is:

  • A store that sells skis buys them from a manufacturer at a wholesale price of $63
  • The store’s markup rate is 50%

We need to find at what price the store charges its customers for the skis and

what percent of the original price is the final price

∵ The store buys the skis at $63

∴ The cost price of the skis = $63

∵ The store’s markup rate is 50%

- Find the amount of 50% of the cost price

∵ 50% of 63 = \frac{50}{100} × 63 = 31.5

∴ the store's markup the cost of the skis by $31.5

- To find the selling price add 31.5 to the cost price

∴ The selling price of the skis = 63 + 31.5 = $94.5

a. The store charges $94.5 for the skis

To find what percent of the original price is the final price divide the final price by the original price then multiply the quotient by 100%

∵ 94.5 ÷ 63 = 1.5

∵ 1.5 × 100% = 150%

∴ The final price is 150% of the original price

b. 150% of the original price is the final price

Learn more:

You can learn more about the percentage in brainly.com/question/1834017

#LearnwithBrainly

5 0
3 years ago
33 points!!
Alika [10]

Answer:

the missing length would be 35 mm bc both of them are the same length

Step-by-step explanation: hope this helped

4 0
3 years ago
5 equally sized boxes of cake mix fell off the back of jake's truck. Together they wight 925.97 pounds. How much does each box w
Nikitich [7]
925.97/5= 185.194
A: 185.194 pounds
4 0
3 years ago
Read 2 more answers
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