HELP PLEASE HURRY... 65 POINTS

Answer:

12:18 and 20:30

Step-by-step explanation:

Answer:

12:18? n 20:30?

Step-by-step explanation:

sorry if im rong

Answer:

x=3

Step-by-step explanation:

8-6x=18x

8-6x+6x=18x+6x

8=24x

x=3

Answer:

x=3

Step-by-step explanation:

First we have to get x by itself-

8-6x=18x     If you add 6x to -6x it chancels out

     +6x  +6x

8=24x        Now we have to divide by 8

/8  /8

x=3    

Answer:

The ans is 0.8

Step-by-step explanation:

80% = 0.8 in decimal form.

Percent means 'per 100'. So, 80% means 80 per 100 or simply 80/100.

If you divide 80 by 100, you'll get 0.8 (a decimal number). Read more below on this webpage.

As you can see, to convert from percent to decimal just divide the percent value (80) by 100, and remove the "%" sign.

(hope this helps can i plz have brainlist :D hehe)

Answer:

Step-by-step explanation:

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Answer:

y = 5 and x = 2

Step-by-step explanation:

Since we have x = -3y + 17, we're going to substitute this equation into the x-value in the second equation.

2(-3y + 17) - y = -1

Multiply the 2 with the terms within the parentheses.

-6y + 34 - y = -1

Add the y values.

-7y + 34 = -1

Subtract 34 from both sides.

-7y = 35

Divide each side by -7.

y = 5

Now that we know the value of y, we can substitute 5 for the y-value in the first equation.

x = -3(5) + 17

Multiply.

x = -15 + 17

Add the two terms together.

x = 2

Hope this helped!

Answer:

I am don't know sorry

Step-by-step explanation:

sorry follow me

Answer: 40

Step-by-step explanation:

A function is defined as a relation between a set of inputs having one output each.

The function that would give f(3) = 17 is

f(x) = 2 ( x + 4 ) + 3

A function is defined as a relation between a set of inputs having one output each.

We have,

f(3) = 3x + 6

Substitute x = 3

f(3) = 3 x 3 + 6 = 9 + 6 = 15

f(x) = 2 ( x + 4 ) + 3

Substitute x = 3

f(3) = 2 ( 3 + 4 ) + 3 = 2 x 7 + 3 = 14 + 3 = 17

f(x) = 5x

Substitute x = 3

f(x) = 5 x 3 = 15

We see that f(x) = 2 ( x + 4 ) + 3 gives the 17 at x =3.

Thus the function that would give f(3) = 17 is

f(x) = 2 ( x + 4 ) + 3

Learn more about functions here:

https://brainly.com/question/26885907

#SPJ2

Answer:

x=18

Step-by-step explanation:

add 2y to both sides 5x=2y+88

subtract 88 from both sides 2y=5x-88

substitute 2y in the second equation for 5x-88

3x+10x-176=58

add like terms 13x-176=58

add 176 both sides

13x=234

x=18

Answer:

( 18, -6.5 )

Step-by-step explanation:

First choose which method you plan on using: Substitution or Elimation. I chose elimination based off preference.  

How to solve using Elimination:

5x -2y = 88  (multiply every number in this equation by two)

3x+4y=58

10x -4y = 176

3x+4y=58      (combine these two equations)

13x = 234  (isolate x by dividing by 13 on both sides)

x = 18         (this is your value for x)

3(18) +4y=58   (plug in for x)

54+4y=28        (solve)

4y = -26            (subtract 54 from both sides)

y = -6.5             (this is y)

write answer in (x, y) format

( 18, -6.5 )

Answer: First you have to figure out what the decimal is as a fraction, which is 3/50.

Step-by-step explanation:

You take 0.06 and you use a fraction calculator and you put in the decimal and hit enter.  Your answer is 3/50

Answer:

Step-by-step explanation:

x/15=6/12

x=15(6)/12

x=7.5

Answer:

67.50

Step-by-step explanation:

100%-> 450

15%-> 67.50

Answer:

Step-by-step explanation:

i² = (-1)

[tex]\sqrt{-20} =\sqrt{20i^{2}}\\\\=\sqrt{2*2*5*i^{2}}\\\\=2i\sqrt{5}[/tex]

Answer:

The store charges $9.77 to ship a hammock that weighs 10.54 pounds.

Step-by-step explanation:

4.50 (shipping cost)

0.50 (per 1 pound)

w = weight in pounds

       w=10.54

4.50+0.50w= total cost

        sub in 10.54 for w

        remember order of operations (PEMDAS)

4.50 + 0.50 (10.54) = 4.50 + 5.27 = 9.77

The store charges $9.77 to ship a hammock that weighs 10.54 pounds.

Answer:

0.3 ? I'm not sure sorry.

Answer:

16

Step-by-step explanation:

create a t chart on one side put 3 and on the other put 2.

times 3 by 8 (you'll get 24) and then times 2 by 8 (you'll get 16.

Answer:

x = -8

Step-by-step explanation:

5x - 4 + 7x = 5(2x - 4)

12x - 4 = 10x - 20

    +20          +20

12x + 16 = 10x

-12x          -12x

16 = -2x

divide by -2

x = -8

Answer:

x = -8

Step-by-step explanation:

5x - 4 + 7x = 5(2x - 4)

12x - 4 = 10x - 20

   +20          +20

12x + 16 = 10x

-12x          -12x

16 = -2x

divide by -2

x = -8

Answer:

Step-by-step explanation:

x/4-y/2=8, x-2y=32, x=32+2y

x/2+3y/4=-5, 2x+3y=-20, x=(-20-3y)/2

32+2y=(-20-3y)/2

64+4y=-20-3y

7y=-84

y=-12, since x=32+2y

x=32+2(-12), x=32-24=8

So the solution is the point (8, -12)

Answer:

its (8, -12)

Step-by-step explanation:

I did the test but if you need to show your work then im sorry lol i did it in my head

Answer:

its the last one

Step-by-step explanation:

first two are opinion and are not formal, and the third one is off topic

Answer:

C? if not im sorry

Step-by-step explanation:

Answer:

30 out of 40: 75%

40 out of 50: 80%

40 out of 50 is the better score

Answer:

C. 2x^2 - 14x +7

Step-by-step explanation:

Here is a picture of the answer.

Answer:

n=16

Step-by-step explanation:

3 (n-4) = 36

3n -12=36

add twelve to both sides. because -12 + 12 is 0. and once you are at zero, you can cancel it out.

3n=48

divide by 3 on both sides

n=16

Answer:

x= 1/5

Step-by-step explanation:

Remove parentheses.

15−7x−20=0.5(6x−14)

Simplify  15-7x-2015−7x−20  to  -7x-5−7x−5.

-7x-5=0.5(6x-14)

−7x−5=0.5(6x−14)

3 Expand.

-7x-5=3x-7

−7x−5=3x−7

4 Add 7x7x to both sides.

-5=3x-7+7x

−5=3x−7+7x

5 Simplify  3x-7+7x3x−7+7x  to  10x-710x−7.

-5=10x-7

−5=10x−7

6 Add 77 to both sides.

-5+7=10x

−5+7=10x

7 Simplify  -5+7−5+7  to  22.

2=10x

2=10x

Divide both sides by 1010.

\frac{2}{10}=x

10

2

​

=x

9 Simplify  \frac{2}{10}

10

2

​

  to  \frac{1}{5}

5

1

​

.

\frac{1}{5}=x

5

1

​

=x

Answer: the answer is 4

Step-by-step explanation: 3x4 is 12 so 12-(2+4)=6

Answer:

Could be because in the first bag there is 10 silver and 9 blue,and both have very close numbers.

Step-by-step explanation:

Im not 100% sure but both the blue and silver have almost the same amount of beads. so the probability could be 75%-90% posible.

:/ Again, Im not so sure about this.

Answer:

Step-by-step explanation:

Sin (48) = Y/7

7 sin (48) =y

7* (.743) = 5.2

Answer:

390cm

Step-by-step explanation:

1. find area of rectangle

 1. 15cm x 20cm= 300 cm

2. find area of triangle

  1. 1/2 (12 x 15)= 90cm

300+90

Answer:

Step-by-step explanation:

Given function:

A model rocket is launched off the ground at an initial velocity of 80 feet per second.

This gives us

The function becomes:

Correct option is B.