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Contact [7]
3 years ago
6

Y= negative 2X -7 how do I solve this equation algebraically

Mathematics
1 answer:
ratelena [41]3 years ago
5 0
You cannot solve this equation, because you have no y or x values. However, you can change the equation to equal x.
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Sumeet uses 0.4 gallon of gasoline each hour mowing lawns. How much gas does he use in 4.2 hours?
Norma-Jean [14]
You multiply 0.4 by 4.2 and that equals 1.68 so sumeet uses 1.68 gallons of gas in 4.2 hours.
4 0
2 years ago
Javier asks his mother how old a tree in their yard is. His mother says, "The sum of 10 and two-thirds of that tree's age, in ye
Sloan [31]

Answer:

His error is adding 10 and 2/3 before multiplying by a(age of the tree)

Step-by-step explanation:

The sum of 10 and two-thirds of that tree's age, in years, is equal to 50.

Correct equation

Sum = addition (+)

two-thirds = 2/3

The tree's age = a

10 + 2/3a = 50

2/3a = 50 - 10

2/3a = 40

a = 40 ÷ 2/3

= 40 × 3/2

= 60

a = 60 years

Javier writes the equation

(10 + two-thirds) a = 50

(10 + 2/3)a = 50

(30+2/3)a = 50

32/3a = 50

a = 50 ÷ 32/3

= 50 × 3/32

= 150/32

a = 150/32

His error is adding 10 and 2/3 before multiplying by a(age of the tree)

5 0
3 years ago
Write the following in decimal format:<br> 364<br> 1000
levacccp [35]
Answer: 3.64, 10.00

Step by step:
4 0
2 years ago
A scientist makes a graph of temperature versus time. Temperature will be plotted on the ______ axis.
trapecia [35]
Temperature will be plotted on the y-axis
3 0
2 years ago
Read 2 more answers
Match each form with its equation.
Rasek [7]
Answers

1.Slope-intercept form
2.Point-Slope form
3.Standard Form
4.Vertical Line
5.Horizonal Line
7 0
2 years ago
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