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3 years ago

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a glacier that was 1,076 meters thick changed in thickness at an average rate of -22.7 meters per year for 7 years. Write an add

ition expression you can use to find the glacier's thickness after 7 years answer fast ASAP PLEASSEEEE running out of timeeeee

1 answer:

Maksim231197 [3]3 years ago

3 0

Answer:

1076-(22.7)7

Step-by-step explanation:

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3. The sum of x and y is 9. The value of y is two more than the value of x. Write a system of equations to model this.

hodyreva [135]

Answer:

x + y = 9

y = x + 2

Step-by-step explanation:

We need to write a system of equations to represent the given situation . The statements are ,

<u>Statement</u><u> </u><u>1</u><u>:</u><u>-</u><u> </u>The sum of x and y is 9.

Mathematically , we can write it as ,

$\rm\implies x + y = 9$

<u>Statement</u><u> </u><u>2</u><u>:</u><u>-</u> The value of y is two more than the value of x.

This simply means that y equals to 2 + x , that is

$\rm\implies y = x+2$

Therefore the system of equations will be ,

x + y = 9
y = x + 2

Also when we will try to solve the equations we will get ,

$\rm\implies x + y = 9$

Put y = x + 2 , we have ,

$\rm\implies x + x + 2= 9$

Add the like terms ,

$\rm\implies 2x +2 = 9$

Transpose 2 to RHS ,

$\rm\implies 2x = 9 -2 = 7$

Divide both sides by 2 ,

$\rm\implies \boxed{\blue{\rm\quad x = 3.5\quad}}$

Similarly we will get the value of as ,

$\rm\implies 3.5 + y = 9$

Transpose 3.5 to RHS ,

$\rm\implies y = 9 - 3.5$

$\rm\implies \boxed{\blue{\rm\quad y = 5.5\quad}}$

Therefore ,

$\begin{cases} \rm x = 3.5 \\\\\rm y = 5.5 \end{cases}$

6 0

3 years ago

A package of aa batteries costs 3.50 plus an additional 6% tax. What is the price after tax?

Fiesta28 [93]

6% tax means 6% of $3.50

Convert 6% to decimal (move decimal 2 spots to the left): 6% ⇒ .06

Multiply 3.50 with .06 = .21 <-- That's .21 cents of 3.50

That means you have to pay an extra 21 cents. Add that to the $3.50 you had to pay.

$3.50 + $0.21 = $3.71 <-- Price after tax

6 0

3 years ago

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The scatter plot shows the average cost of peaches against the quantity sold for different farmers.

sveticcg [70]

Answer:

what plot?

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

What does Buksa find?

lawyer [7]

Answer:

The answer is A)

Buksa and Salva heard noises. As they fell back and searched, they realised they had found a beehive with lots of honey.

Buksa is a character in the book "A long walk to water".

Cheers!

5 0

3 years ago

The image of (-6,6) after a dilation by a scale factor of 5 centered at the<br> а

Setler79 [48]

Answer is (24,-24)

Explanation:
Dilation centered at the origin multiplies each coordinate by the dilation factor.
image= 4(6,-6)
image= (24,-24)

8 0

2 years ago