Nathan and Steven stacked boxes on a shelf. Nathan lifted 13 boxes and Steven lifted 15 boxes. The boxes that Nathan lifted each weighed 12 lb more than the boxes Steven lifted. Which expression represents the total number of pounds Nathan lifted? Let s represent the weight of the boxes that Steven lifted. a. 13(s 12) b. s 12 c. 15(s 12) d. 12(s 13)

QUESTION POSTED AT 06/12/2019 - 02:35 PM

Answered by admin AT 06/12/2019 - 02:35 PM

Http://www.jiskha.com/display.cgi?id=1412206557 here this should help
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Related questions

Thomas works for a company that occupies a large campus. Every workday, he orders a cup of coffee on campus, and the $1.50 cost is automatically deducted from his paycheck. If Thomas visits the coffee shop 13 times, what will the net change in his paycheck be?

Answer:

When Thomas  visits the coffee shop 13 times than the  change in his paycheck be is $19.5 .

Step-by-step explanation:

As given

Thomas works for a company that occupies a large campus.

Every workday, he orders a cup of coffee on campus, and the $1.50 cost is automatically deducted from his paycheck.

If Thomas visits the coffee shop 13 times .

Thus

Net change in Thomas  paycheck = 13 × Cost per deduction from  paycheck

Put all the values in the above

Net change in Thomas  paycheck = 13 × 1.50

                                                        = $ 19.5

Therefore when Thomas  visits the coffee shop 13 times than the  change in his paycheck be is $19.5 .

ANSWERED AT 28/01/2020 - 01:11 AM


QUESTION POSTED AT 28/01/2020 - 01:11 AM

An ultra-low flush toilet uses 1.6 gallons every time it is flushed. What is the pattern that describes the total water used after n flushes? How many gallons have been used after 10 flushes?

The pattern is geometric because is adds 1.6 every flush.

After 10 flushes, 16 gallons are used.

ANSWERED AT 28/01/2020 - 01:11 AM


QUESTION POSTED AT 28/01/2020 - 01:11 AM

Write an expression to describe the sequence below. Use n to represent the position of a term in the sequence, where n = 1 for the first term. -7, -14, -21, -28, …

F(n)=1+-7. You put the F as the equation and 1 as the first term plus whatever you add

ANSWERED AT 28/01/2020 - 01:08 AM


QUESTION POSTED AT 28/01/2020 - 01:08 AM

Candice spent 5 1/4 hours doing her homework. Her brother, Ronald, spent 1/2 that number of hours doing his homework. How many hours did Ronald spend on his homework?

Answer:  Ronald spent 2\dfrac{5}{8} hours on his homework.

Step-by-step explanation: Given that Candice spent 5\dfrac{1}{4} hours doing her homework. Her brother, Ronald, spent half of that number of hours doing his homework.

We are to find the number of hours that Ronald spent on his homework.

Since Ronald spent half of the time as his brother Candice, so the number of hours that Ronald spent on his homework is given by

H_r=\dfrac{1}{2}\times5\dfrac{1}{4}=\dfrac{1}{2}\times\dfrac{21}{4}=\dfrac{21}{8}=2\dfrac{5}{8}.

Thus, Ronald spent 2\dfrac{5}{8} hours on his homework.

ANSWERED AT 28/01/2020 - 01:07 AM


QUESTION POSTED AT 28/01/2020 - 01:07 AM

What is the rational number equivalent to 3.12

 I think it's 3.12121212...

ANSWERED AT 28/01/2020 - 01:05 AM


QUESTION POSTED AT 28/01/2020 - 01:05 AM

You are going on a field trip in a school bus. A special detector placed on one of the bus's tires counts the number of rotations completed by the tire during the journey. The tire's diameter is 1 meter, and it made 8000 rotations during the trip. How far did the bus travel? Give an exact answer.

The way tires on wheels work is that when the wheel turns one complete
turn, it moves (forward or backward) by a distance that's the circumference
of the tire.

Now, we know that the circumference of a circle is (π) times the diameter.
The diameter of the tire on this bus is 1 meter.  So its circumference is
(π · 1 meter), and every time it turns once, the bus moves 1 meter down
the road.

If the tire rotated 8,000 times, then the bus moved 8,000π meters,
or 8π kilometers.

THAT's the exact answer.  If you want to know how far that actually is,
then you take some number that's approximately π and multiply it by
8 km.  You can never get an exact answer like that, because you can
never write the exact value of π with digits.

In school, we often use  ' 3.14 ' for π .  If you do that, then the bus
traveled

                   (8 km) x (3.14)  =  25.1 kilometers .

When you do that, you have to remember that it's approximate.
If you want an exact answer, then you have to leave π in the answer.

ANSWERED AT 28/01/2020 - 01:03 AM


QUESTION POSTED AT 28/01/2020 - 01:03 AM

Consider the exponential function f(x) =1/5(15x). What is the value of the growth factor of the function? A. 1/5 B. 1/3 C. 5 D. 15

we know that

An exponential function is a function where the input, x, appears in the exponent.

the equation of an exponential function usually looks like:

 y=ab^{x}

where

a is a number called the initial value

b is a number called the growth factor

In this problem

we have

 f(x) =\frac{1}{5}(15^{x})

where

 \frac{1}{5}  -------> is the initial value

 15 ------> is the growth factor

therefore

the answer is the option

 D. 15

ANSWERED AT 28/01/2020 - 01:03 AM


QUESTION POSTED AT 28/01/2020 - 01:03 AM

What is the expression for "the difference between five times a number and twice that number"?

The answer to this question is 5x - 2x. Let x be the unknown variable and five times a number is equal to 5x then subtract it by the twice of that number which is 2x. In solving problems like this you have to let a certain variable represent the unknown.

ANSWERED AT 28/01/2020 - 01:02 AM


QUESTION POSTED AT 28/01/2020 - 01:02 AM

HELP! I'm stumped. A bag contains 100 marbles: 30 red, 30 blue, 30 green, plus a mix of 10 yellow and orange marbles. To be certain that you have 10 marbles of the same color, what is the minimum number you would need to remove (without looking) from the bag?

Well, consider the unluckiest case: In whatever order, you manage to remove nine of the red marbles, nine of the blue ones, nine of the green and all of the yellow and orange mix. So far, you've removed 37 of the marbles (9+9+9+10 = 37), yet you don't have 10 of any single color. If you remove just one more marble, it will be red, blue, or green, and you will have 10 of the same color. So the answer is 38 marbles.  :)

ANSWERED AT 28/01/2020 - 01:02 AM


QUESTION POSTED AT 28/01/2020 - 01:02 AM

Find the circumference and area of the circle having a given diameter of d = 13 cm

Circumference of circle = pi*diameter = 13pi cm

Area is pi*d^2/4 = pi*13^2/4 = 42.25pi cm^2.

ANSWERED AT 28/01/2020 - 12:58 AM


QUESTION POSTED AT 28/01/2020 - 12:58 AM

Find the circumference and area of the circle having the given diameter of d=13 cm.

The circumference of a circle can be found from the formula: 2 \pi r, where r is the radius (half of the diameter). 
2 x 3.1415 x 6.2 = 40.84cm

ANSWERED AT 28/01/2020 - 12:57 AM


QUESTION POSTED AT 28/01/2020 - 12:57 AM

What is the average rate of change of f(x), represented by the table of values, over the interval [-3, 4]?

F ( -3 ) = 6
f ( 4 ) = 27
Average rate of change: \frac{27-6}{4-(-3 )}= \frac{21}{4+3}= \frac{21}{7} = 3

ANSWERED AT 28/01/2020 - 12:55 AM


QUESTION POSTED AT 28/01/2020 - 12:55 AM

Why does using FOIL on polynomial expressions match so closely to integer multiplication?

 FOIL is a mnemonic rule for multiplying binomial (that is, two-term) algebraic expressions. 
FOIL abbreviates the sequence "First, Outside, Inside, Last"; it's a way of remembering that the product is the sum of the products of those four combinations of terms. 

For instance, if we multiply the two expressions 
(x + 1) (x + 2) 
then the result is the sum of these four products: 
x times x (the First terms of each expression) 
x times 2 (the Outside pair of terms) 
1 times x (the Inside pair of terms) 
1 times 2 (the Last terms of each expression) 
and so 
(x + 1) (x + 2) = x^2 + 2x + 1x + 2 = x^2 + 3x + 2 
[where the ^ is the usual way we indicate exponents here in Answers, because they're hard to represent in an online text environment]. 

Now, compare this to multiplying a pair of two-digit integers: 
37 × 43 
= (30 × 40) + (30 × 3) + (7 × 40) + (7 × 3) 
= 1200 + 90 + 280 + 21 
= 1591 

The reason the two processes resemble each other is that multiplication is multiplication; the difference in the ways we represent the factors doesn't make it a fundamentally different operation. 

ANSWERED AT 28/01/2020 - 12:53 AM


QUESTION POSTED AT 28/01/2020 - 12:53 AM

If the point (1, 5) lies on a circle whose center is at the origin, what is the equation of the circle? x2 + y2 = 26 x2 + y2 = 16 x2 + y2 = 13 x2 + y2 = 11

In this case just change the variables by the numbers. (1,5)
x=1 y=5
1^2 + 5^2 = 26
1+25=26
26=26 *this one is the answer...
TRUE

x2 + y2 = 16
1^2 + 5^2=16
1+25=16
26=16
False

x2 + y2 = 13
1^2 + 5^2=13
1+25=13
26=13
False

x2 + y2 = 11
1^2 + 5^2=11
1+25=11
26=11
False

So we can say that the first one is the answer.

ANSWERED AT 28/01/2020 - 12:52 AM


QUESTION POSTED AT 28/01/2020 - 12:52 AM

16 4 12 36 9 27 44 11 complete the pattern

16, 4, 12, 36, 9, 27, 44, 11, next is 33. 44-11=33

ANSWERED AT 28/01/2020 - 12:50 AM


QUESTION POSTED AT 28/01/2020 - 12:50 AM

David drew PQR and STU so that P S, PR = 12, SU = 3, PQ = 20, and ST = 5. Are PQR and STU similar? If so, identify the similarity postulate or theorem that applies.

PR : PQ = 12 : 20 = 3 : 5
SU : ST = 3 : 5
and ∠ P = ∠ S
SAS: side, angle, side.
The triangles are similar if:
- the ratio between 2 sides of one triangle is the same as the ratio between 2 sides of another.
- the included angles are equal.
Triangles PQR and STU are similar.

ANSWERED AT 28/01/2020 - 12:50 AM


QUESTION POSTED AT 28/01/2020 - 12:50 AM

Is the expression x^3 * x^3 * x^3 equal to x^3*3*3?

No. 
x^3 * x^3 * x^3 > x^3*3*3
x^3 * x^3 * x^3 = 19683
whereas  x^3*3*3 = 7.626 (rounded to 3 decimal places)

ANSWERED AT 28/01/2020 - 12:49 AM


QUESTION POSTED AT 28/01/2020 - 12:49 AM

The function f(x) = x2 is translated 7 units to the left and 3 units down to form the function g(x). Which represents g(x)?

Answer:

B

Step-by-step explanation:

ANSWERED AT 28/01/2020 - 12:47 AM


QUESTION POSTED AT 28/01/2020 - 12:47 AM

A triangle has side lengths measuring 3x cm, 7x cm, and h cm. Which expression describes the possible values of h, in cm?

The answer is 4x cm < h < 10x cm.

The third side of the triangle is greater than the difference of the lengths of the other two sides (h > 7x cm - 3x cm) and it is less than the sum of the lengths of the other two sides (h < 7x cm + 3x cm). Therefore:
h > 7x - 3x
h < 7x + 3x

This can be expressed as:
7x cm - 3x cm < h < 7x cm + 3x cm
⇒ 4x cm < h < 10x cm

ANSWERED AT 28/01/2020 - 12:44 AM


QUESTION POSTED AT 28/01/2020 - 12:44 AM

How many ounces of trail mix are in a bag that weighs 0.681 kilograms? Input only numeric values. (1 pound = 0.454 kg and 1 pound = 16 ounces)

.681kg/1bag x 1lb/.454kg x 16oz/1lb = 24oz/1bag

ANSWERED AT 28/01/2020 - 12:41 AM


QUESTION POSTED AT 28/01/2020 - 12:41 AM

Your monthly living expenses are $1500 on an income of $1,650 per month. Your goal is to have an emergency fund of 4 times your monthly living expenses. Your emergency fund savings account has $2,400 and you put the remainder of your monthly income into the emergency fund each month. How much more money would you have to save each month to complete your emergency fund in 12 months? a. $300 per month b. $150 per month c. $75 per month d. $60 per month

Your end goal is to have $6000 total in 12 months. since you have $2400 already you can subtract that from 6000 leaving you with $3600 over the course of 12 months. since you already put $150 in a month over the course of 12 months you would have $1800 which is only half of the goal of $3600. in order for you to put in $3600 you would have to put an additional 150 in your savings along with your regular 150 making the answer b.

ANSWERED AT 28/01/2020 - 12:41 AM


QUESTION POSTED AT 28/01/2020 - 12:41 AM