Can someone help me please my grades close today?

Answer:

The solution is  x = 9, y = -1.

Step-by-step explanation:

x + y = 8

x -  y = 10       Adding to eliminate y:

2x + 0 = 18

x = 9               Substituting x = 9 into the first equation:

9 + y = 8

y = 8 - 9

y = -1..

We first of all have to simplify this expression to be 2.7g+1.2=12 then subtract 1.2 to both sides and that = to 10.8 and then divide both sides by 2.7 and you will get 4 so,

G=4

Answer:

3.47 mm

Step-by-step explanation:

Answer: I’m sure the answer is

Y=5/4x-1

Step-by-step explanation:

Answer:

Copper, and Zinc

Step-by-step explanation:

This is because Copper and Zinc are the only elements listed on the modern day Periodic Table of Elements.

Feel free to give brainliest.

Have an outstanding day!

Answer:

Here are some points for you

Step-by-step explanation:

Answer:

wym?? where's the expressions or am i just dumb

Step-by-step explanation:

Answer:

what expression?

Step-by-step explanation:

Answer:

Step-by-step explanation:

Use your calculator

first times the 9 five times (9x9x9x9x9) then time it by the 177147.

then put that value in the

[tex]\sqrt[3]{x}[/tex]

Answer:

1/3 and 3

Step-by-step explanation:

Answer: So the answer is 2.83

Step-by-step explanation: This is a terminating decimal number, so if I round up to the nearest trillionth place it will be 2.83. Just only give me a thanks and 5-star rate. :)

Answer:

B

Step-by-step explanation:

Answer:

17.9- decimal form 17 9/10- fraction form.

Step-by-step explanation:

ez.

Answer:

Step-by-step explanation:

Given the volume of air in liters in the human lungs described by the function V(t) = 0.173t +0.15t^2 - 0.035t^3 where t is the time in seconds,

The beginning of this respiratory cycle for the lungs to fill to their maximum volume of air occurs when dV/dt = 0

dV/dt = 0.173 + 0.3t - 3(0.035)t²

dV/dt = 0.173 + 0.3t - 0.105t²

Since dV/dt = 0

0.173 + 0.3t - 0.105t² = 0

multiply through by -1

-0.173 - 0.3t + 0.105t² = 0

0.105t² -0.3t-0.173 = 0

Factorize;

t = 0.3±√0.3²+4(0.105(0.173))/2(0.105)

t = 0.3±√0.09+0.07266/0.21

t =  0.3±√0.16266/0.21

t = 0.30±0.4033/0.21

t = 0.7033/0.21

t = 3.349secs

t ≈ 3.4secs

Hence it will take about 3.4secs for the lungs to fill to their maximum volume of air

Answer:

Step-by-step explanation:

I can't really graph it for you, but I will show you how to.

-x is the value on the horizontal axis, which are 1,2,3,4,6

if you replace x for 1, which is

y= -4(1) + 3

y= -1

so you can graph that point (1,-1)

you can replace x with other numbers on the horizontal axis.

Hope this helps

Answer:

lol

Step-by-step explanation:

Answer:

x= 6 y=40

Step-by-step explanation:

Answer:

A.2/x+1 ............

The composite function f(g(x)) is 2/x + 1

Given the function

We are to get the composite function (fog)(x)

This can be written as:

f(g(x)) = f(2/x)

f(2/x)= 2/x + 1

Hence the composite function f(g(x)) is 2/x + 1

Learn more on composite function here: https://brainly.com/question/10687170

Answer:

She would cut the pizzas into 3rds.

Answer:

Depending on how big the pizza is I guess.

If it's three people, Jane can either...

Cut the pizza into 6 slices, 2 for everyone

Cut the pizza into 12 slices, 4 for everyone

Basically into thirds lol

Hope this helped :)

Answer: P=55

Step-by-step explanation:

52=p-3

52+3= p+3

55=p (-3+3=0)

Answer:

False

Step-by-step explanation:

I hope this helps!

Answer:

False

Step-by-step explanation:

[tex]4x-3(5x-1)\\=4x-15x+3\\=-11x+3\\\\-11x+3\neq 3+9x\\Hence, As\ LHS\ doesnt\ equal\ to\ RHS\ ,\\The\ Answer\ is\ False\ .[/tex]

Answer:

The correct answer is $2,50.

Step-by-step explanation:

The unit rate is what we use to determine the price of a single unit, when something is sold in a group, as in this case 5 ounces.

We have been told that $ 12.50 is the price for 5 ounces, but what we want to know is how much 1 ounce costs.

To determine this, what we must do is divide the total price by the quantity of ounces, in order to determine the unit price:

12.50 / 5 = 2.50

In this way we can verify that the unit price of 5 ounces is $ 2.50

Answer:

x-intercept is 0

y-interpret is (0,-5)

Answer:

Step-by-step explanation:

x- intercept found when y = 0

y-intercept found when x = 0

Answer:

C.

Step-by-step explanation:

A. -12 = -12

b. -2 = -2

C -4 = -8

D. -4 = -4

Answer:

done

Step-by-step explanation:

Answer:

Step-by-step explanation:

12/864 = 71 r4

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

864 ÷ 12 = 72

The number of people needed to attend their breakfast in order to raise $864 is 72 people.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example:

2 + 3x + 4y = 7 is an expression.

56÷ 4 is an expression.

We have,

Henry's soccer team is trying to raise $864 to travel to a tournament in Florida, so they decided to host a pancake breakfast.

Each person must pay $12 for the breakfast.

The number of people needed to attend their breakfast in order to raise $864.

= 864 ÷ 12

= 864 / 12

= 72 people

We can cross-check.

Amount collected from 72 people.

= 12 x 72

= $864

Thus,

The number of people needed to attend their breakfast in order to raise $864 is 72 people.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ5

Answer:

8,820m

Step-by-step explanation:

Let m be meters

We will have to find the amount of seconds in half an hour

60 * 30

= 1,800

Then we will multiply the meters she walks per second by 1,800

3.4m * 1,800

= 6,120m

1.5m * 1,800

= 2,700m

We add those two together to get the total walked in an hour

6,120m + 2,700m

= 8,820m