A truck whose bed is 2.5m long, 1.5m wide, and 1.0m high is delivering sand for a sand-sculpture competition. About how many trips must the truck make to deliver [tex]7m^{3}[/tex] of sand?

Answer:

hey

Step-by-step explanation:

Answer:

$778.60

Step-by-step explanation:

Sandy worked 80 hours over the last two weeks. She makes $6 per hour, so she earned

$6 x 80 =480

Sandy had a total of $2,986 in sales before taxes. Sandy earns 10% commission on her sales, so

$2,986 x 0.1 = 298.60

is Sandy's earning on sales.

In total, Sandy earned

$480 + $298.60 = $778.60

Answer: A. divided the difference of the two quantities by the sum of the two quantities.

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

Explanation:

The difference of the quantities is 20-15 = 5

The sum of the quantities is 20+15 = 35

Dividing those results leads to 5/35 = 0.142857 which rounds to 0.1429

That converts to 14.29%

This is likely the path Adam took. This path is incorrect. The correct steps are shown below

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Difference = 20-15 = 5

Divide the difference over the original quantity

5/20 = 1/4 = 0.25 = 25%

We have a 25% decrease because the new quantity (15) is smaller than the old quantity (20)

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

Here's another way to approach the problem

A = old value = 20

B = new value = 15

C = percent change

C = [ (B-A)/A ] * 100%

C = [ (15-20)/20 ] * 100%

C = (-5/20)*100%

C = -0.25*100%

C = -25%

The negative C value means we have a negative percent change, ie we have a percent decrease. So this is another way to get a 25% decrease.

Answer:

42

Step-by-step explanation:

Answer:

angle x=40

Step-by-step explanation:

Angle CD on the bottom is a 180 angle. If you subtract it by 110 it's 70. The two bottom angles are equal so it also equals 70, add them and you get 140. Subtract 180 by 140 and it means x=40!

Answer:

The length of a rectangle is 3 inches more than it’s width. If the perimeter is 42 inches , find the dimensions of the rectangle

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

A: 12

B: 36

C: Naomi is faster because she runs a full mile in 8 minutes while Amal runs a mile in 12 minutes.

Step-by-step explanation:

Since he can run 1/8 miles in 1.5 minutes, times 1.5 by 8 to get a mile. Then times that by 3 to get 3 miles. Now calculate how long it takes Naomi to run a mile, 2 times 4 which is 8 minutes. We know Amal runs a mile in 12 minutes, so Naomi is faster.

Answer:

D

Step-by-step explanation:

From the triangle inequality, we know that the two small sides must be greater than the largest side. Let's let x be the third side:

[tex]7+15>x[/tex]

However, 15 can also be our largest side. So:

[tex]7+x>15[/tex]

Let's solve for x for both inequalities.

First inequality:

[tex]7+15>x[/tex]

Add:

[tex]22>x[/tex]

Flip:

[tex]x<22[/tex]

Second inequality:

[tex]7+x>15[/tex]

Subtract 7 from both sides:

[tex]x>8[/tex]

So, we have the compound inequality:

[tex]x>8\text{ and } x<22[/tex]

Combine:

[tex]8<x<22[/tex]

Our answer is D

And we're done!

#1 is 6.34

#2 is 27.25

#3 is Gallons of gas use for work and errands is 10.

#4 is 215

Hope this helps

Answer:

D.

Step-by-step explanation:

If both factors are negative, it will make a positive.

If one factor is negative, and the other is positive, it will make a negative.

If both factors are positive, it will make a positive.

Answer: The answer is D. Both factors are negative, so the product will be positive and the answer is 240

yes

|6+(-1)|= |6-1|=5

|14-19|=5

5=5

so yes it is equal

Answer:

yes They are proportional

Step-by-step explanation:

Answer:

200 sorry read that wrong

Step-by-step explanation:

Answer:

The original price of the item is $200.

Step-by-step explanation:

Let the original price be 'x'.

The sale price of an item is $160 after a 20% discount.

i.e. original price - 20% of original price = $160

x-20/100x=160

x-0.2x=160

0.8x=160

x=160/0.8

x=200

Therefore, the original price of the item is $200.

hope this helped :))

Answer:

1/2x - y = 6

Step-by-step explanation:

First, distribute 1/2 to the parentheses:

y + 4 = ½ (x – 4)

y + 4 = 1/2x - 2

Then, subtract y from both sides:

4 = 1/2x - y - 2

Add 2 to both sides:

6 = 1/2x - y

Reorder the equation:

1/2x - y = 6 is the standard form of the equation

Answer:

slope=50

y-intercept=0

equation to solve how many d in the amount of w=1/50=w/d or 1*w=w and 50*w=d

student will have 2600 dollars in 52 weeks

Step-by-step explanation:

m=y2-y1/x2-x1

150-100=50

3-2=1

50/1=50

slope=50

b=(y=mx+b)

150=50(3)=b

50*3=150

150-150=0

150-150=0

y=intercept is 0

1/50=w/d

52*50=2600

hope this helps :3

pls mark brainliest

sorry if im wrong

Answer:

length of a city block

length of a city park

Step-by-step explanation:

Answer:

9/20

Step-by-step explanation:

x + 3y = -2

Also 5x -3y = 26

=> 5 (-2-3y) -3y =26

=> -10 -15y -3y =26

=> -18y = 36

Putting y = -2 in equation i we get,

x= -2 -3(-2)

=> x = -2 +6

Answer:

(4, -2)

Step-by-step explanation:

Please be sure to share ALL of the instructions.  Here you meant "Solve the following set of simultaneous equations and present your solution in (x, y) form."

Note that the first equation features +3y and that the second features 5x - 3y = 26.  Simply adding like terms results in our having eliminated the variable y:

6x = 24

Then x = 24/6 = 4

The x coordinate of the solution is 4;  Substituting 4 for y in the first equation results in

4 + 3y = -2

which simplifies to 3y = -6.  Thus, y = -2, and the solution is

(4, -2)

Answer:

11

Step-by-step explanation:

-6(1-5x)=324 divide both sides by -6

1-5=-54 move constant to the right-hand side and change its sign

-5x=-54-1 calculate the difference

-5x=-55 divide both sides of the equation by -5

x=11

Answer:

You can tell yourself that if you don't study you'll eventually going to fail and get in trouble. So, what would you rather have happen?. Study for a few more minutes and get a good grade, or Quit studying and fail the test and have your parents be notified by an angry math teacher.

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Make the 10% a decimal

.10

Then multiply it by 40

.10*40

You get 4

Answer:

IOn going to take a guess and say it would be for Plan A would be 16+0.30x=y

Step-by-step explanation:

And this guy above me also took my answer for credit smh ... he swears ahah

Yes, because every number has a decimal expansion. Option A is correct.

GIven that,
To justify whether the number 30 has a decimal expansion.

Decimal value is defined as showing the place value of the digits in a decimal number. If any proportion of the digit is lower than 1 it would be represented after the dot right to the absolute value.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
Given number = 30
Decimal expansion, 30 = 30.000
So, it's true that the number 30 has a decimal expansion because every number has a decimal expansion.

Thus, Yes, every number has a decimal expansion so as is 30. Option A is correct.

Learn more about decimal values here,

brainly.com/question/19802955

#SPJ2

Answer: 23

Step-by-step explanation: 3(7)=21+2 is 23

Answer:

1) -15/32

2) 2/15

3) -203.5

4) -3/2 = -1.5

5) 10/3 = 3 1/3

Step-by-step explanation:

For 1, you just multiply the numerators and denominators together (3 by 5, 4 by 8) and then because it is negative, add the negative sign.

For 2, you multiply again, but because there are 2 negative signs, it becomes positive.

For 3, you divide 81.4 by 0.4, you could also divide 814 by 4.

For 4, you keep change flip, so the equation would become -9/4 (-2 1/4=-9/4) and 3/2 would become 2/3. The equation would be (-9/4 * 2/3). Then, you would get -18/12 which is -3/2.

For 5, you just multiply 4/3 by 5/2 which is 20/6 and because 2 negatives, it becomes positive.

1. -15/32

-3/4 TIMES 5/8. So what you are going to do is multiply the bottom number by the top number and remember that a negative times positive equals negative. -3 times 5 equals -15 so that's the top number. Then, do the bottom number and it's 8 times 4, which is 32.

2. 2/15

So you do the same stuff for the last problem but now for this one so -1 times -2 is positive 2 so that's going to be the top number. Then 5 times 3 is 15.

3. -203.5

(-81.4)/0.4. So what you can do is do long division and get -203.5.

4. -1/5

(-2 1/4)/11/2. So what we can do is put the first fraction into improper fractions. So that would be -9/4 DIVIDED by 11/2. So then you're going to multiply 11/2 by 2 and get 22/4. Now we have -9/4 divided by 22/4.

5. 3 1/3

Switch them to improper fractions. -4/3 times -5/2. This will definitely be a positive because of the fact that it's a negative times a negative. This would equal 20/6 which can be simplified to 3 and 1/3.

Answer:

- 13

Step-by-step explanation:

PEMDAS:

P: Parentheses

E: Exponents

M: Multiplication

D: Division

A: Addition

S: Subtractions

Step 1:

- 4² + 3² ÷ 3       Equation

Step 2:

- 16 + 9 ÷ 3    Exponents

Step 3:

- 16 + 3     Divide

Answer:

- 13    Add

Hope This Helps :)