Write 2 400 000 in standard form.

Answers

Answer 1

Answer: 2.4 x 10^6 That’s the answer

Answer 2

Answer: Two Million, Four Hundred Thousand

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The original photo was 11 inches wide by 14 inches high the new photo will be 132 inches wide what will be the new height

Answers

They are similar rectangles. Therefore, the side lengths are proportional:

$(11)/(132)=(14)/(x)\ \ \ \ |\text{cross multiply}\n\n11x=132\cdot14\ \ \ \ |:11\n\nx=(132\cdot14)/(11)\n\nx=(12\cdot14)/(1)\n\nx=168$

Answer: The new height will be equal 168 inches.

Mustafa buys seed packets for a community garden. One packet of basil seeds costs $1.50. One packet of squash seeds costs $2.50. Let b represent the number of packets of basil seed. Let s represent the number of packets of squash seeds. Mustafa spent $38 on 18 packets of seeds. How many packets of each type of seeds did Mustafa buy?

Answers

There are total 11 packets of squash seeds and 7 packets of basil seeds.

What is system of linear equations?

A system of linear equations (or linear system) is a collection of one or more linear equations involving the same variables.

What is substitution method?

The substitution method is the algebraic method to solve simultaneous linear equations. In this method, the value of one variable from one equation is substituted in the other equation.

According to the given question.

Cost of one packet of basil seeds = $1.50

Cost of one packet of squash seeds = $2.50

Cost of 18 packets of seeds = 38

Also, b represents the number of packets of basil seeds and s represents of numbers of squash seeds.

Therefore, from the given conditions we get some system of equations

$s + b = 18..(i)$

and $b(1.50) + s(2.50) = 38...(ii)$

From equation (i)

$s = 18-b$

Substitute the value of s in the equation (ii)

⇒ $1.50b+(18-b)2.50 =38$

⇒ $1.50b + 45 - 2.50b = 38$

⇒ $-b = 38-45$

⇒ $-1b =- 7$

⇒ $b = 7$

So, $s = 18 - 7 =11$

Hence, there are total 11 packets of squash seeds and 7 packets of basil seeds.

Find out more information about system of equations and substitution method here:

brainly.com/question/11778994

#SPJ2

Answer:

Step-by-step explanation:

b+s=18

s=18-b

1.50 b+2.50 s=38

multiply by 4

6.00 b+10.00 s=152

divide by 2

3 b+5 s=76

3 b+5(18-b)=76

3 b+90-5 b=76

-2b=76-90

-2b=-14

divide by -2

b=7

s=18-7=11

List 2/3 , 7/12 , and 3/4 from greatest to least thanks .

Answers

for this question you should know that:
2/3 = 8/12
and
3/4 = 9/12
so now you can say:
7/12 < 8/12 < 9/12
so:
7/12 < 2/3 < 3/4 :)))
i hope this is helpful
have a nice day

Forget the numerators, focus on the denominators for now. 3 an 4 are both multiples of 12, so we can multiply $(2)/(3)$ by 4 and $(3)/(4)$ by 3 to make all the fractions out of 12. This should make it easier to understand which one is the smallest / biggest.

$(2)/(3)$ × 4 = $(8)/(12)$

$(3)/(4)$ × 3 = $(9)/(12)$

You leave $(7)/(12)$ as it is because it's already out of 12.

Now you can see that obviously, $(3)/(4)$ is the largest fraction, as 9 is the biggest when it's out of 12. $(2)/(3)$ is the second largest as it's 8 out of 12, which is smaller than 9 but bigger than 7. Obviously, the last is one is $(7)/(12)$ .

So the order is:

$(3)/(4)$ , $(2)/(3)$ , $(7)/(12)$ .

Which could be the dimensions of a rectangular prism whose surface area is greater than 140 square feet? Check all that apply.6 feet by 2 feet by 3 feet
6 feet by 5 feet by 4 feet
7 feet by 6 feet by 4 feet
8 feet by 4 feet by 3 feet

Answers

the second one, ((6 x 5) x 4) +((5 x 4) x 2) = 160

the third one, ((7 x 6) x 4) + (6 x 4) x 2) = 216

the fourth one, ((8 x 4) x 4) + ((4 x 3) x 2) = 152

It is 6 feet by 5 feet by 4 feet , 7 feet by 6 feet by 4 feet, and 8 feet by 3 feet by 7 feet (I just took the test)

Find the variance and standard deviation of the given set of data to the nearest tenth.{440, 130, 280, 500, 150, 640, 760}

A) variance = 222.7, standard deviation = 49,595.9

B) variance = 49,595.9, standard deviation = 24,798

C) variance = 49,595.9, standard deviation = 222.7

D) variance = 57,861.9, standard deviation = 240.5

Answers

Answer:

Part 1) variance = 49,595.9

Part 2) standard deviation = 222.7

Option C

Step-by-step explanation:

we have

set of data $[440,130,280,500,150,640,760]$

step 1

Find the mean

Adds the values and divide by the number of values

In this problem the number of values is 7

$[440+130+280+500+150+640+760]/7$

$[2,900]/7=414.3$

step 2

for each number: subtract the Mean and square the result

$(440-414.3)^(2)=660.49\n (130-414.3)^(2)= 80,826.49\n (280-414.3)^(2)= 18,036.49\n (500-414.3)^(2)= 7,344.49\n (150-414.3)^(2)= 69,854.49\n (640-414.3)^(2)= 50,940.49\n (760-414.3)^(2)=119,508.49$