1 year ago

Use the substitution method to solve the system of equations. Choose the correct ordered pair.

Mathematics

1 answer:

lakkis [162]1 year ago

3 0

Answer:

x=3

y=1

Step-by-step explanation:

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145 300 610 1230

Vlad1618 [11]

Multiplying by 2 and then adding 10 145*2=290+10=300
300*2=600+10=610
610*2=1220 + 10=1230
x=2 y=10
x+y=12

5 0

4 years ago

What is the slope of the line that passes through the pair of points (1/3, -1) and ( -2, 9/2)

UkoKoshka [18]

Answer:

$\boxed{m = - \frac{33}{14} }$

Step-by-step explanation:

Use the form below

$\boxed{\boxed{m = \frac{y_2 - y_1}{x_2 - x_1} }}$

Where

$m$ is a slope
$(x_1,~y_1)$ and $(x_2,~y_2)$ are the point of the line

So, the slope is

$(\frac{1}{3} ,~ -1) \to x_1 = \frac{1}{3} ~and~y_1 = -1$

$(-2,~ \frac{9}{2} ) \to x_2 = -2~and~y_2 = \frac{9}{2}$

$m = \frac{\frac{9}{2} -(-1)}{-2-\frac{1}{3} }$

$m = \frac{\frac{11}{2} }{\frac{-7}{3} }$

$m = \frac{11}{2} \div (-\frac{7}{3} )$

$m = \frac{11}{2} \times (-\frac{3}{7} )$

$m = - \frac{33}{14}$

Happy to help:)

7 0

4 years ago

Read 2 more answers

Rosario answered 27 out of the 30 questions on Mr. li's science test correctly. How is Rosario's grade represented as

NeX [460]

Answer: The answer to this question is : 90%

Step-by-step explanation: To find the percentage of a fraction, you divide the numerator by the denominator. So, in this case, you divided 27 by 30 and you'd get 0.9 --> 90%.

5 0

3 years ago

The Price of kiwis can be deterrent by the equation P=1.15n where p is the price and n is the number of kiwis. What is the const

Travka [436]

Answer:

1.15

Step-by-step explanation:

P/n = 1.15

Price is 1.15 per kiwi

7 0

4 years ago

What is the least common denominator of 24/25,49/50,37/100

schepotkina [342]

100 is the smallest number they will all go into, so 100

8 0

3 years ago