I don't know how to do this.

Answer:

-70

Step-by-step explanation:

If a number is right by a parathesis () then you multiply the number inside the parathesis by the number next to them.

Answer:

x=1

Step-by-step explanation:

you would change it to 5x-4(-3x+5)=-3, because you put the info for the first equation into the second equation.

5x-4(-3x+5)=-3

5x+12x-20=-3

17x-20=-3

17x=17

x=1

Answer:

(1,2)

Step-by-step explanation:

1) To solve using substitution, first isolate one of the variables in one of the equations. However, the y in y = -3x + 5 has already been isolated, so we don't need this step. Instead, take that value of y and substitute it for the y in the other equation, 5x - 4y = -3. So, substitute -3x + 5 for the y in 5x - 4y = -3 and solve:

[tex]5x-4(-3x+5)= -3\\5x+12x-20=-3\\17x-20=-3\\17x = 17\\x = 1[/tex]

2) So, x = 1. Now, take that value of x and substitute back into any of the equations to find the y value. (I chose to substitute it into y = -3x + 5, but either choice is fine). So, substitute 1 for the x in y = -3x + 5 and solve:

[tex]y = -3(1)+5\\y = -3+5\\y = 2[/tex]

So, y = 2. Thus, by knowing both x and y values, the solution would be (1,2).

Answer:

33 small mugs

Step-by-step explanation:

Given:

Total number of mugs sold by Jo = 132

One quarter of the mugs were small. The rest were large.

To find: Number of small mugs sold by Jo

Solution:

Number of small mugs sold by Jo = [tex]\frac{1}{4}[/tex] (Total number of mugs sold by Jo)

Therefore,

Number of small mugs sold by Jo [tex]=\frac{1}{4}(132)=33[/tex]

Answer:

x-4=y

Step-by-step explanation:

9-4=5

12-4=8

Answer:

9,5

step-by-step explanation:

Answer:

Remove all perfect squares from inside the square root. ... I think it's about eighth or ninth grade. ... so if you have the cube root of the square root of (x-5) =2, you get ((x-5)^(1/2))^1/3 = 2, power to power requires multiplication, so (x-5)^1/6 = 2, ...

Missing: 176 ‎xy

Answer:

$16

Step-by-step explanation:

1-.6=.4

.4 x 40 = 16

Answer:

60% of 40.00 is 24

Step-by-step explanation:

I hope this helps! Have a wonderful day!

what i don't understand why you think

Answer:

Step-by-step explanation:

2.75 days * (24 hours)/day = 66 hours

6900(1.40)^(66/8) = 119,765.72

Answer:

110765.72

Step-by-step explanation:

Step-by-step explanation:

The algebraic expression is

20

----

c

or

20/c

Answer:

not you cheating Maddison   (its kaliya)

Step-by-step explanation:

but the answer is the temperature dropped 15.6 degrees from the high that day which was 8 degrees

so the sum is: 8-15.6= -7.6

And that means the low temperature on Tuesday night was - 7.6 degrees

Answer:

Step-by-step explanation:

but the answer is the temperature dropped 15.6 degrees from the high that day which was 8 degrees

so the sum is: 8-15.6= -7.6

And that means the low temperature on Tuesday night was - 7.6 degrees

Step-by-step explanation:

xkjs

Answer:

y = 4x - 2 would be the equation

Answer:

I'm sorry that your frog is dead, at least now we can fry his legs ~~tasting like chicken ~~~~~~flavor ain't missing

Answer:

2x+3y=12$

3x+2y=19$

Hope it helps

Answer:

452.448in² options D

Step-by-step explanation:

A circular window on a boat has a diameter of 24

inches. Approximately how much wall space does the

window take up?

A 38 in?

B 75 in?

C 113 in?

D452 in?

Given data

D=24 inches

Radius =d/2= 24/2= 12 inches

Area A

A=πr²

Substitute

A=3.142*12²

A=3.142*144

A=452.448in²

Answer:

16.5

Step-by-step explanation:

50 x 33

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

100

= 16.5

Answer:

-4/3.

Step-by-step explanation:

cos O = 3/5

Using Pythagoras to find the length of the side opposite  the angle O:

As the  cos of O is adjacent/ hypotenuse,  Hypotenuse = 5 , adjacent side = 3 so

opposite side. = sqrt(5^2 - 3^2) = sqrt 16

= 4.

Now the tangent is negative in Q IV so

tan O =  opposite / adjacent side = -4/3

Answer:

3=x

Step-by-step explanation:

multiply 5 times 2x and 4 which is 10x-20

then you have -10=10x-20

then add 20 to both aides and you'll have

30=10x then divide by 10 to get x alone

and you have

3=x

Answer:

Step-by-step explanation:

sin15=h/30

h=30sin15

h=7.8 mi

Answer:

1. 14 people said 1 hour or more

2. 52 people

3. 13 people said it takes them less than half an hour and 13 people said it takes them more than half a hour. difference is 0

4. the data is taken in pairs of 2 people

Step-by-step explanation:

bottom question

5- 2

10 - 6

15 - 4

20 - 6

25 - 0

30 - 8

35 - 4

40 - 0

45 - 6

50 - 2

55-0

60-8

65-6

Answer:

625 students

Step-by-step explanation:

Answer:

It took 2 hours by plane

Step-by-step explanation:

let bus is represented by x and plane is represented by y

the total distance of bus and plane will be represented by equation:

40 x + 600 y = 1320           (1)

the total time taken by bus and plane will be represented by:

x + y = 5                              (2)

solving equations (1) and (2) simultaneously:

Multiply by 40 on both sides in eq (2)  and then subtract (1) and (2)

40 x + 600 y = 1320

40 x + 40 y = 200

_______________

         560 y = 1120

               y   = 1120/ 56

               y= 2

since plane is represented by y so, the time they spent travelling by plane is 2 hours.

Answer:

x=20

Step-by-step explanation:

Answer:

The average number of points scored by a member of the team.

Step-by-step explanation:

The center of the data is another phrase for the mean of the data

Mean: the average of all data given (Add all the numbers up and divide by the amount of numbers there are).

Hope this helped :)

Answer:

I believe the answer would be A.

Step-by-step explanation:

You can get rid of B. and C. since it is in the middle. The highest would be at the top/right side and the lease would be at the bottom/left side. Then the total score does not make much sense because you would have to add up every number

Answer:

0≤x≤15

Step-by-step explanation:

Answer:

I think its different from each other because maybe combining like terms in a inequality your trying to compare them? Or maybe they're just advanced. Can someone give me an example of an inequality please so I can try finding out the difference?