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jarptica [38.1K]
3 years ago
9

True or False: (1, 3) is a solution to the system of linear equations shown

Mathematics
2 answers:
trapecia [35]3 years ago
8 0

Answer:

True

Step-by-step explanation:

You can substitute x = 1 and y = 3 into both equations and see if it's true or not.

y = 4x - 1

becomes

3 = 4(1) - 1

3 = 4 - 1

3 = 3

True

y = x + 2

becomes

3 = 1 + 2

3 = 3

True

Since both equations come out true, this (1, 3) is a solution.

astraxan [27]3 years ago
4 0

Answer:

True

Step-by-step explanation:

(1, 3) is a solution to the system of linear equations shown is true

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kykrilka [37]

Answer:

SAS

Step-by-step explanation:

One of the postulates is called SAS and it states that if two triangles have 2 sides with the same length and the angles between the two sides are the same then the two triangles are congruent. This is exactly what we see on the diagram shown in the question, therefore the correct postulate is SAS

7 0
3 years ago
1. As part of a survey, 50 students were asked about their favorite lunch item. The results are shown in the table below .The ca
Fiesta28 [93]
1.
A. This statement is wrong because the prediction is valid, not valid.
B. Refer to A.
C.This statement is valid, yet explains the prediction incorrectly. 
[D.] This statement is correct because 50 x 6 = 300, therefore 20% of 300 is 60.

2.

A. This is incorrect because it equals 125%
B. This is also incorrect, it equals 12.5%
C. Refer to B
[D.] This is correct, it equals 1.14%, which is less than 1.25%
7 0
4 years ago
Tony is opening a pizza restaurant and needs to determine the amounts of ingredients he will use in his pizzas. He wants the amo
Vika [28.1K]

The equation that represents this situation while the variable s representing the amount of dough needed , for a small pizza is (5/2)S = (3/2)S + S  .

In the question ,

it is given that

amount of dough for a medium pizza is 3/2 times the amount of dough for small pizza ,

let the amount of dough required for small pizza = S

let the amount of dough required for large pizza = L

let the amount of dough required for medium pizza = M

So , M = (3/2)S

and amount of dough for a large pizza is 5/2 times the amount of dough for small pizza ,

that is

L = (5/2)S

amount of dough used for one large pizza is equal to the amount of dough used for one medium and one small pizza ,

that is L = M + S .

Substituting the value of L and S , we get

(5/2)S = (3/2)S + S

We have a linear equation that is true for all S , there is no unique solution to this equation .

Therefore , The equation that represents this situation is (5/2)S = (3/2)S + S .

The given question is incomplete , the complete question is

Tony is opening a pizza restaurant and needs to determine the amounts of ingredients he will use in his pizzas. He wants the amount of dough for a medium pizza to be 3/2 times the amount of dough for a small pizza. And, he wants the amount of dough for a large pizza to be 5/2 times the amount of dough for a small pizza. Also, the amount of dough used for one large pizza should to be equal to the amount of dough used for one medium and one small pizza. So, he needs to determine how much dough to use for a small pizza. Use this information to complete the following tasks.

Write an equation to represent this situation while the variable s representing the amount of dough needed , for a small pizza .

Learn more about Equation here

brainly.com/question/17026235

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4 0
1 year ago
How do you find 20 percent off $150 as an example but how do you find questions like these the easiest way you can explain to me
Finger [1]
Change the percent in to a decimal and then multiply the decimal with the whole number subtract the whole number from the answer to get the money left over it is based on what the question is asking

3 0
3 years ago
Read 2 more answers
An arts academy requires there to be4 teachers for every68 students and3 tutors for every30 students. How many students does the
Murrr4er [49]

Answer:

1.17

2.10

3.7

Step-by-step explanation:

1. 68÷4=17

2. 30÷3=10

3.70÷10=7 ( 10 used from 2.)

6 0
3 years ago
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