Why is it a good idea to check to see if your answer is reasonable?a. if your answer is reasonable, you have probably done the problem correctly
c. you just need to solve for the variable
b. if you understand the problem, you will not need to check your answer
d. to get the correct answer, you will need to draw a picture
Mark this and return

Answers

Answer 1

Answer:

Answer:

Option: a is the correct answer.

a. if your answer is reasonable, you have probably done the problem correctly.

Step-by-step explanation:

Checking for reasonableness is a process by which students evaluate estimations to see if they are reasonable guesses for a problem.

So, a good idea to check to see if your answer is reasonable is:

a. if your answer is reasonable, you have probably done the problem correctly.

( Since a reasonable answer is just a estimation of the problem it can't be claimed to be true but it is just a probable estimation ).

Answer 2

Answer: It is a good idea to check to see if your answer is reasonable because a. if your answer is reasonable, you have probably done the problem correctly.

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In a certain café, all sandwiches are priced the same. A customer ordered 3 sandwiches and 2 drinks for $14.70. Another customer bought 2 sandwiches and 4 drinks for $13.30. Find the cost of one sandwich and the cost of one drink, if the cost of each drink is the same price. a) Sandwich: $3.50, Drink: $2.35 b) Sandwich: $2.35, Drink: $3.50 c) Sandwich: $3.25, Drink: $2.10 d) Sandwich: $2.10, Drink: $3.25

Answers

Answer:

Step-by-step explanation:

Let's say the cost of one sandwich is "s" and the cost of one drink is "d". From the first customer's order, we know that 3 sandwiches and 2 drinks cost $14.70. So we can write the equation: 3s + 2d = 14.70 From the second customer's order, we know that 2 sandwiches and 4 drinks cost $13.30. So we can write the equation: 2s + 4d = 13.30 Now, we can solve this system of equations to find the values of "s" and "d". Multiplying the first equation by 2 and the second equation by 3, we get: 6s + 4d = 29.40 6s + 12d = 39.90 Subtracting the first equation from the second equation, we get: 6s + 12d - (6s + 4d) = 39.90 - 29.40 Simplifying, we have: 8d = 10.50 Dividing both sides by 8, we find: d = 1.3125 Now we can substitute this value back into either of the original equations to find the value of "s". Let's use the first equation: 3s + 2(1.3125) = 14.70 Simplifying, we have: 3s + 2.625 = 14.70 Subtracting 2.625 from both sides, we find: 3s = 12.075 Dividing both sides by 3, we get: s = 4.025 So the cost of one sandwich is approximately $4.03 and the cost of one drink is approximately $1.31. Therefore, the correct answer is: c) Sandwich: $4.03, Drink: $1.31

Final answer:

Option (a), with the cost of a sandwich as $3.50 and a drink as $2.35, is the correct solution for this algebraic problem. This conclusion was reached by forming two equations from the information given and solving this system of equations.

Explanation:

This is an algebra problem where we set up two equations to solve for two variables. Let's denote the cost of a sandwich as S and the cost of a drink as D. The first equation derived from the first customer's purchase would be 3S + 2D = 14.70. The second equation from the second customer's purchase would be 2S + 4D = 13.30. To solve these equations, we could multiply the first equation by 2 and the second equation by 3 then subtract the second equation from the first. This will provide the cost of a Sandwich which can then be substituted back into either original equation to get the cost of a Drink. Once you solve this system, the answer appears as option (a): Sandwich $3.50 and Drink $2.35.

Learn more about System of equations here:

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What ratio is equivilant to 4:13 which makes 85?

Answers

Let us assume the common ratio to be = x
then
4x + 13x = 85
17x = 85
x = 85/17
= 5
Then
The ratio will be = 4 * 5:13 * 5
= 20:65
So the ration in which the number 85 can be separated is 20:65. i hope the procedure is clear enough for you to understand. You can always use this method for solving similar problems without taking any help from outside. Only be careful while calculating.

How do i graph the parabolas y = 1/32x^2

Answers

$y=(1)/(32)x^2 \n \nx=-16 \Rightarrow y=(1)/(32) *(-16)^2=(1)/(\not32^1)*\not256^8=8\n \nx=-8 \Rightarrow y=(1)/(32) *(-8)^2=(1)/(\not32^1)*\not64^2=2\n \nx=0 \Rightarrow y=(1)/(32) *(0)^2=(1)/(\not32^1)*0=0 \n \nx=8 \Rightarrow y=(1)/(32) *(8)^2=(1)/(\not32^1)*\not64^2=2 \n \nx= 16 \Rightarrow y=(1)/(32) *( 16)^2=(1)/(\not32^1)*\not256^8=8$

A triangle has one angel that measures 51 degrees and one angle that measures 39 degrees. what kind of triangle is it?

Answers

Those two angles are complementary - which means they both give us 90 degrees. We know that all three angles in any triangle must be exactly 180 degrees, so the third angle will be 180 - 90 = 90 degrees. It means that our triangle is a straight triangle. The figure will look more less like in the attachment.

it would be a acute because you would do 51+39=90 which u would do 180-90 which would equal 90 and a aucte is a 90 degree angle

un péndulo tiene en cierta ciudad donde la gravedad es de 9.8m/s^2 un período de 2 s y en otra ciudad realiza 50 oscilaciones menos por día ¿cuál será el valor de la gravedad en la segunda ciudad?