7x+4y=24
4x-4y=0
Solve by using the elimination method. Show your work.

Answer:

16 °C

Step-by-step explanation:

We are told that Ken predicts that, in August, the average low temperature will be 20°C, and that the temperature will drop by 4°C in September.

Now, in a standard 12 month calendar, the month of August comes before the month of September.

Thus, in September a drop off by 4°C from 20°C means that the new temperature in September is; 20°C - 4°C = 16 °C

Answer:

16

cause why not

Answer:

15.67

Step-by-step explanation:

14+1.67=15.67

Answer:

-3.25

Step-by-step explanation:

Just plug then in 2(1/2)+3(1/4)-5

Answer:

what do you mean the mode

Answer:

The 1st baseman can't catch the ball without jumping.

Step-by-step explanation:

To know if the 1st baseman can catch the ball without jumping we need to find the height reached by the baseball by solving the following equation:

[tex] f(x) = -0.004x^{2} + 0.3x + 6 [/tex]

We know that x (the horizontal distance) = 60 feet, so we have:

[tex] f(60) = -0.004(60)^{2} + 0.3(60) + 6 [/tex]

[tex]f(60) = 9.6 ft[/tex]

Since the 1st baseman can reach 8 ft high and the height reached by the baseball is 9.6 ft, the 1st baseman can't catch the ball without jumping.

Therefore, the 1st baseman can't catch the ball without jumping.

I hope it helps you!                             

Answer:

22

Step-by-step explanation:

108- 20 to get 88 then divide by 4

Answer:

B; g = $22

108-20=88

88/4=22

Step-by-step explanation:

Hope this helps! <3

GOODLUCK.

Answer:

Answer is A: 12

Step-by-step explanation:

Did the quiz.

wanted to help people.

Answer:A -12 per month

Step-by-step explanation:Did the test

Answer:

oof  we just went over that

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

diffusion is move from high to low

Answer:

No

Step-by-step explanation:

no you do not get the same answer

This is the order in which you should approach problems, doing otherwise may lead to a wrong answer

P - parenthesis -- meaning solve whatever is the the parenthesis

E - exponents -- an example of an exponent is [tex]2^{3}[/tex] which equals 8

MD - multiplication/division

AS - addition / subtraction

for our particular problem, we have

9 + 2(3)

multiplication trumps addition thus we perform multiplication first

9 + 6 = 15 ---CORRECT

if we were to addition first we would get

9 + 2(3) = 11(3) = 33 This would be WRONG

note: multiplication and division are on the same level

         subtraction and addition are on the same level

if you encounter a problem like 4 ÷ 2 * 3. perform the calculation from left to right thus we would have 4 ÷ 2 = 2 and then 2 * 3 = 6

same applies for addition subtraction

Answer:

140 teenagers attended the game.

Answer:

x = 10

Step-by-step explanation:

-4x = -40

x = 10

Answer:

Of what?

Step-by-step explanation:

Answer: 7.5%

Step-by-step explanation:

Given: Principal amount = $15,000

Time =- 2 years

Final Amount (Principal + interest)= $17,250

Interest = Final Amount - Principal amount

= $ ( 17250 - 15000  )

= $ 2250

Formula for interest : principal x rate x time

[tex]2250=15000\times rate \times 2\\\\\Rightarrow\ rate =\dfrac{2250}{15000\times2}\\\\\Rightarrow\ rate =0.075\\\\\Rightarrow\ rate =0.075\times100\%=7.5\%[/tex]

Hence, the simplest interest rate on lukes loan =7.5%

Answer:

your answer is y= 10x+50

Step-by-step explanation:

just bc

Answer:

You are 15,379.

Step-by-step explanation:

18/2=9

14/2=7

6/2=3

and it has to be in the 15,000s.

Hope this helped!!

Answer:

4,2

Step-by-step explanation:

The slope of the line is 2.

All you have to do is rise/ run.

Rises 6 runs 3.

So 6/3.

Simplify iff possible, and in this case it is possible. Which gives you 2.

Answer is 2.

Answer:

Step-by-step explanation:

[tex]f(x)=x^2-12x+46\\a=1\,,\ \ b=-12\\\\[/tex]

Vertex form of an equation of a quadratic function: f(x)=a(x-h)²+k, where vertex is (h, k) and:

[tex]h=\dfrac{-b}{2a}\,,\ \ k=f(h)\\\\\\h=\dfrac{-(-12)}{2\cdot1}=\dfrac{12}{2}=6\\\\k=f(6)=6^2-12\cdot6+46=36-72+46=10[/tex]

Answer:

decrease

Step-by-step explanation:

theres less bars on y than x so it went down

Answer:

write answer is 600,, 100% sure

Lol , so this question is from your school google forms? ; )

Answer is 600. Lemme show you how.

Y is proportional to x.

y ∝ x

to remove proportionality , we put k.

y = kx

Now , insert values of y and x to find k.

60 = k *75

k = 75 / 60

Now when Y = 480 , x =?

x = (75/60)(480) = 600.

X = 600

Ah yes.

Refer the pictures at the bottom. Let me know in comments if you can access the pdf given.

Answer: y=0.5x+5

Step-by-step explanation:

just did it on edg

Answer:

B.

Step-by-step explanation:

Answer:

y = - 3x + 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = - 3 and c = 7 , thus

y = - 3x + 7 ← equation of line

Answer:

C

Step-by-step explanation:

I cant see the whole thing but if graph C starts from the origin or point 0,0 its proportional.

Answer:

xmdmkspwkwkpwmannsjsk

Answers:

There are eight items in that list above.

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

Explanation:

We'll use the AC method of factoring.

The first term has coefficient 3. The last term is -8. Multiply them to get 3*(-8) = -24.

Now let's list all the ways to multiply two integers to get -24

For each pair of factors listed, we'll add up those pairs. Each sum we get represents a possible value of k

Note the symmetry. For instance we have 10 as one sum and -10 as another sum.

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

Let's go over an example. Let's say that k = 10

The expression 3x^2+kx-8 turns into 3x^2+10x-8

From the list above, we see that -2+12 = 10. So the two values -2 and 12 will help us factor.

Break up the 10x into -2x+12x and then factor by grouping like so

3x^2 + 10x - 8

3x^2 - 2x + 12x - 8

(3x^2 - 2x) + (12x - 8)

x(3x-2) + (12x - 8)

x(3x-2) + 4(3x - 2)

(x+4)(3x-2)

Therefore, 3x^2 + 10x - 8 factors into (x+4)(3x-2)

We can use the FOIL rule, distribution, or the box method to confirm this.

I'll let you try out other values of k to see how 3x^2+kx-8 factors.

Sum of the numerator and denominator = 18

If the denominator is increased by 2 , the fraction reduces to 1/3.

the fraction

Let the fraction be x/y.

⟹ x + y = 18

⟹ x = 18 - y -- equation (1)

And,

If the denominator is increased by 2 , the fraction reduces to 1/3.

⟹ x/y + 2 = 1/3

⟹ 3x = y + 2

Substitute the value of x from equation (1).

⟹ 3(18 - y) = y + 2

⟹ 54 - 3y = y + 2

⟹ 54 - 2 = y + 3y

⟹ 52 = 4y

⟹ 52/4 = y

⟹ 13 = y

Substitute the value of y in equation (1).

⟹ x = 18 - 13

⟹ x = 5

Therefore, the required fraction x/y is 5/13.

I hope it will help you.

Regards.

Answer:

Length is twice the breadth.

→ Length = 2 * x = 2x m.

Also,

Perimeter of the field = 150 m.

We know that,

Perimeter of a rectangle = 2(length + breadth).

Hence,

→ 150 = 2(x + 2x)

→ 150 = 2 * 3x

→ x = 150/2 * 3

→ x = 25

Step-by-step explanation:

(2 s) + ((−4) s) =

-2 seconds

Answer:

8mm - Ladybug

8cm - Battery

12cm - Frog

19cm - Toothbrush

1000km - Texas

40m - Ferris Wheel

12m - Helicopter

70cm - Desk

I think this might be right.

I hope this helps!