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3 years ago

Help me pls pls pls

Mathematics

2 answers:

Musya8 [376]3 years ago

7 0

What is the question I can’t see the whole thing?

LuckyWell [14K]3 years ago

6 0

Answer:

omg I'm doing the same thing

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Elimination<br>3x +2y=9<br>3x ty=0<br>1

muminat

Answer:

$y = 9$

$x = -3$

Step-by-step explanation:

Given

$3x + 2y = 9$

$3x + y = 0$

Required

Solve by elimination

To do this, we subtract both equations (to eliminate x)

$3x + 2y = 9$

- $3x + y = 0$

--------------------

$3x - 3x + 2y - y = 9-0$

$y = 9$

Substitute $y = 9$ in $3x + y = 0$

$3x + 9 = 0$

Solve for 3x

$3x =- 9$

Solve for x

$x = -9/3$

$x = -3$

8 0

3 years ago

Write a system of equations to describe the situation below, solve using substitution, and fill

Lynna [10]

Answer:

The cost must be $32 since that is the only cost possible for the 1st deal

Step-by-step explanation:

Let C represent the total cost of each deal

Let T be the number of trips down the water slide

C = 32 for the 1st deal since the cost is the same regardless of how much she rides

C = 18 + T for the 2nd deal

To find when the two costs are equal set them equal to each other and solve for T

32 = 18 + T

T = 14 trips

The cost must be $32 since that is the only cost possible for the 1st deal

5 0

3 years ago

Can someone help me answer this question

ch4aika [34]

What? Need answers. Plus, I can tell that your are doing this in class. Bad idea.

3 0

3 years ago

5. The distance between two given points (5,2) and (x,5) is 5 units. Find the possible values of x. *

kirza4 [7]

<h3>Answers: x = 1 and x = 9</h3>

============================================================

Explanation:

We'll use the distance formula here. Rather than compute the distance d based on two points given, we'll go in reverse to use the given distance d to find what the coordinate must be to satisfy the conditions.

We're given that d = 5

The first point is $(x_1,y_1) = (5,2)$ and the second point has coordinates of $(x_2,y_2) = (x,5)$ where x is some real number.

We'll plug all this into the distance formula and solve for x.

$d = \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}\\\\5 = \sqrt{(5-x)^2+(2-5)^2}\\\\5 = \sqrt{(5-x)^2+(-3)^2}\\\\5 = \sqrt{(5-x)^2+9}\\\\\sqrt{(5-x)^2+9} = 5\\\\(5-x)^2+9 = 5^2\\\\(5-x)^2+9 = 25\\\\(5-x)^2 = 25-9\\\\(5-x)^2 = 16\\\\5-x = \pm\sqrt{16}\\\\5-x = 4 \ \text{ or } \ 5-x = -4\\\\-x = 4-5 \ \text{ or } \ -x = -4-5\\\\-x = -1 \ \text{ or } \ -x = -9\\\\x = 1 \ \text{ or } \ x = 9\\\\$

This means that if we had these three points

A = (5, 2)
B = (1, 5)
C = (9, 5)

Then segments AB and AC are each 5 units long.

7 0

3 years ago

There are 50 toothpicks in each box .jaime buys 4 boxes for her party platter.how. mant toothpicks does jaime buy.

lubasha [3.4K]

Jaime buys 200 toothpicks. since there are 50 toothpicks in each box, and she buys 4 boxes. 50 × 4 = 200

7 0

3 years ago

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