Which linear equation could David use to determine y, the total distance he could swim without stopping to rest?

Answer: One solution

Step-by-step explanation:

Given

-5x-8=8

Add 8 on both sides

-5x-8+8=8+8

-5x=16

Divide -5 on both sides

-5x/-5=16/-5

x=-3.2

Therefore, it has one solution

Hope this helps!! :)

Please let me know if you have any questions

Answer:

7

Step-by-step explanation:

Set up an equation where x is the number

2x = 14

Divide by 2 on each side

x = 7

So, the number is 7.

Step-by-step explanation

two times what equals four teen

Answer:

14 divide 2 = the answer is 7

Hope is work fix me if im worng ]

Answer:

x=15

Step-by-step explanation:

Answer:

A fraction simply tells us how many parts of a whole we have. You can recognize a fraction by the slash that is written between the two numbers. We have a top number, the numerator, and a bottom number, the denominator. For example, 1/2 is a fraction.

Step-by-step explanation:

Answer:

a quantity that is not a whole number

Answer:

it is 55%

Step-by-step explanation:

I think it is 55 %

Answer:

1. 3 7/12 (decimal: 3.583333)

2. -5 3/28

3. 2 29/40

4. −1  9 /14

Answer:

25

Step-by-step explanation:

5(3)+10

15+10

25

5a + 10

5(3) + 10

15 + 10 = 25

(5a + 10) = 25 when a = 3

Answer:

alternate exterior angles= 1,7 and 2,8 corresponding, interior 3,6 and 4,5

Answer:

Step-by-step explanation:

WeMoveU charges an hourly rate for a moving team to load and unload a truck. The charges is a different hourly rate for a team pack and unpack boxes. Use the quotes below to determine the company's hourly rates. Weekday Move: 5hours of loading and unloading services. 4 hours of packing and unpacking service. $730 total cost. Weekend Move: 4 hours of loading and unloading services. 5 hours of packing and unpacking services. $710 total cost.

Let us represent:

Hours of Loading and Unloading = X

Hours of packing = y

5hours of loading and unloading services. 4 hours of packing and unpacking service. $730 total cost.

5x + 4y = 730..... Equation 1

Weekend Move: 4 hours of loading and unloading services. 5 hours of packing and unpacking services. $710 total cost.

4x + 5y = 710.... Equation 2

Combining both Equations together

5x + 4y = 730..... Equation 1

4x + 5y = 710.... Equation 2

We solve using Elimination method

hiiiiiiiiiiiiiiiiiiiiiiiiiii

hiiiiiiiiiiiiiiiiiiiiiiiiiii

Answer:

It's -7

Step-by-step explanation:

-7 • -4=28 (multiplying 2 negatives gives you a positive)

28 - 20 =8

Answer:

278.5 mm2

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

You add the same number twice to both numbers, then add the total of both numbers and that will get you your answer.

In this equation:

Add the same number twice.

Then you add both numbers up.

Therefore your answer is [tex]20[/tex].

Note: I hope this helped, sorry for the late answer but should help others in the meantime. :) and it would help me a lot if you would give brainliest. :crown:, and comment if you still don't understand and ill be happy to assist you further. This goes to anyone.

Answer:

Step-by-step explanation:

(4x-30)=2x

2x=-30

x=15

Answer:

a

Step-by-step explanation:

Answer:

A) [tex]-\frac{7}{4}[/tex]

Step-by-step explanation:

For this question, we can use the rise over run method, which means y over x.

So count how many it takes for the point on top to get to the bottom by x and y.

It takes 7 spaces down (y)  and 4 spaces to the right (x)

So do rise over run and we get

[tex]\frac{7}{4}[/tex]

Meaning that B and C are incorrect. Now what about A and D?

Well the slope is moving down, meaning that it is a negative slope, therefore there must be a negative sign for the slope.

[tex]-\frac{7}{4}[/tex]

A. is correct.

Answer:

A reflection over the y-axis

Step-by-step explanation:

Answer:

Angle B is 120°

Step-by-step explanation:

Since it's a supplementary angle (angles that add up to 180°) on top of the triangle, you would find ∠B by subtracting 180 by 60 and ∠B will be 120°. Hope this helps:)

Answer:

the second and last one

Step-by-step explanation:

only ones that equal to the same amount at the question all others = -6 which is incorrect.

Answer:

Step-by-step explanation:

7=c/3-1

add 1 to both sides

8=c/3

to get rid of the 3, multiply both sides 3

24=c

Answer:

-1, -7, -13, -19

Step-by-step explanation:

-2(-3)-7 =6-7= -1

-2(0)-7 =0-7= -7

-2(3)-7 =-6-7= -13

-2(6)-7 =-12-7= -19

Answer:

(-3,-1)(0,-7)(3,-13)(6,-19)

Step-by-step explanation:

Put the x number into the x in the equation to get your answer:

y=-2(-3)-7    y=-1

y=-2(0)-7     y=-7

y=-2(3)-7      y=-13

y=-2(6)-7     y=-19

(hope this helps :P)

Answer: 5.25

Step-by-step explanation:

add them

Answer:

6

4.5 is 75 percent of 6

Answer:

19/4

Hope this helps!

Answer:

Is there any answer choices??

Answer:

Step-by-step explanation:

4). Surface area of front and back = 2(lengh × height)

                                                        = 2(7×3)

                                                        = 63 cm²

    Surface area of top and bottom = 2(length × width)

                                                          = 2(8×7)

                                                          = 112 cm²

     Surface area of left and right = 2(width × height)

                                                      = 2(8×3)

                                                      = 48 cm²

      Total surface area = 63 + 112 + 48

                                      = 223 cm²

5). Surface area of top and bottom = 2πr²

                                                          = 2π(4)²

                                                          = 32π

                                                          = 100.53 cm²

    Surface area of middle = h(π × d)

                                            = 4(π × 8)

                                            = 32π

                                            = 100.53 cm²

     Total surface area = 32π + 32π

                                     = 64π

                                     = 201.06 cm²

6). Surface area of front and back = [tex]2[\frac{1}{2}(\text{Base})(\text{Height)}][/tex]

                                                        = Base × Height

                                                        = 6 × 8

                                                        = 48 cm²

     Surface area of bottom = 6 × 11

                                             = 66 cm²

     Surface area of the left = 8 × 11

                                             = 88 cm²

     Surface area of right = 10 × 11

                                        = 110 cm²

      Total surface area = 48 + 66 + 88 + 110

                                      = 312 cm²  

Answer:

16.8 in

Step-by-step explanation:

Given data

DIstance= 14 in

time= 2.5 hours

Speed= 14/2.5

Speed= 5.6 in per hour

Hence for 3 hours

Distance= speed*time

Distance= 5.6*3

Distance= 16.8 in

Answer:

5

Step-by-step explanation:

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

Answer:

a

Step-by-step explanation:

48=7x+13

step 1 subtract each side by 13

35=7x

step 2 divide each side by 7

x=5

Answer:

451

Step-by-step explanation:

on a calculator go to y= and type the equation in and then go to the table.