last week Chen bought 8 1/2 gallons of gas at 2.30 per gallon. This week he bought 4 3/10 gallons of gas at 2.70 per gallon

What is his total cost

Answers

Answer 1
8.5 times 2.3 equals 19.55. 4.3 times 2.7 equals 11.61. 11.61 plus 19.55 equals 31.16. the total cost is $31.16.
Answer 2
I totally agree. I think joe answer is correct.

Related Questions

What does 5/9-2/3x(-1/4)=

Answers

5/9 - 2/3 * (-1/4)=
5/9 + 1/6=
(10 + 3)/18 =
13/18

log4 (x - 7) = 3
solve for x

Answers

Firstly we apply the rule: [tex]a=\log _b\left(b^a\right)[/tex]:
[tex]\log _4\left(x-7\right)=3
\\\log _4\left(x-7\right)=\log _4\left(64\right)[/tex]

When the logarithms have same base, the following rule applies: [tex]\log _b\left(f\left(x\right)\right)=\log _b\left(g\left(x\right)\right) \Rightarrow f\left(x\right)=g\left(x\right)[/tex].

And now we simply solve the linear equation:
[tex]x-7=64
\\x=71[/tex].
I know you all might want the steps too but the way i used in solving it is pretty long, but the answer is
2log2(x−7)=3

log2(x−7)=​3/2

x−7=​3/2log2​​​

x−7=3/​2log2​​

[tex]x = \frac{3}{2 log(2) }+ 7[/tex]
i hope this help

8x+4(x-1) simplify the following expression

Answers

Distribute 4 into x-1
So it makes 8x+4x-4
then Add them together
12x-4
8x+4x-4
12x-1
You have to foil then group the "like terms"... you could also just go to cymath tbh

George ran 1.1 miles, took a break, and then ran 2.1 more miles. How many meters did George run in all?

Answers

First, you would need to calculate how many miles George ran.
1.1 mi + 2.1 mi = 3.2 mi

Now, 1 mile = 1,609.34 meters, so you would multiply the number of meters per mile by the number of miles. 
3.2 × 1,609.34 = 5,149.9 meters

George ran 5,149.9 meters in all. 

I hope this helps!

Please show work ill give brainliest!!!!!!!!!!

Nick and Cathy collected shells on the seashore. In the morning Nick found several shells, while Cathy found 7 shells. In the afternoon, Nick found 15 more shells. Now the ratio of Nick's shells to Cathy's shells in 3:1. How many shells did Nick find in the morning?

Thanks!!!!!!!!!!!!!!

Answers

If Cathy found 7 shells and the ratio was 3:1 that afternoon, then in total, Nick found 21 shells because 7×3=21.


21-15=6

Therefore, Nick found 6 shells that morning.

[tex]y = \frac{3}{1} [/tex]
3×7÷1×7
21÷7
Ratio= 21 ÷ 7

21-15
[tex]y = 6[/tex]
You're welcome!

A gift box in the shape of a cube has a volume of 216 cm3 . What is the area of the base of the box

Answers

The volume consists of L*W*H. Since it is a cube, each measurement will be the same. The cube is 6 for Length, width, and height. The SA for the base of the box is 36cm. 

The area of the base of a cube with a volume of 216 cm³ is 36 cm², obtained by first calculating the side length as the cube root of the volume and then squaring that length.

The volume of a cube is calculated by raising the length of one of its sides to the third power (Volume = s³), where s is the length of a side. Given that the volume of the gift box is 216 cm³, we can find the length of a side by taking the cube root of the volume. The cube root of 216 cm³ is 6 cm, which is the length of each side of the box.

Since the base of the cube is a square, the area of the base is simply the length of a side squared (Base Area = s²). Hence, the area of the base of the box is 6 cm × 6 cm, which equals 36 cm².

the quotient of eight and a number h is written as

Answers

the quotient of 8 and h is written as 8/h
8/h  quotient is to divide so you are dividing by h

power negative a b to the third power minus AC if a equals -2 and b equals 3 and C equals negative 8

Answers

The answer is:  " - 38 " .
__________________________________________________
Explanation:
__________________________________________________
Given:  "  −ab³ − ac ”  ;

Solve this expression when:  "a = -2 " ;  " b = 3 " ;  " c = 8 " ;
__________________________________________________
So, we plug in our given values for "a", "b" and "c" ; and solve:

    [−(2)*(3³)  − [(-2*8)]  =  (-2*27)  − (-16) = (-54) + (16) =  " -38 " .
___________________________________________________

[tex]\(-ab^3 - ac = 38\)[/tex].

To evaluate the expression [tex]\(-ab^3 - ac\)[/tex] given a = -2, b = 3, and c = -8, we substitute the values into the expression:

[tex]-ab^3 - ac = -(-2)(3)^3 - (-2)(-8)\\= -(-2)(27) - (16)\\= 54 - 16 \\= 38[/tex]

A weight of 15 ounces stretches a spring 10 inches. A weight of 24 ounces stretches the same spring 16 inches. How many inches does the spring stretch per ounce of additional weight?

Answers

F = k x 
15 = k *10 
k = 1.5 

check: 
24 = 1.5 x 
x = 16 sureenough 

so 1.5 oz/inch 
= 1/1.5 inches/oz = 2/3 = 0.6666.... in/oz

The spring stretch  0.6 inches per ounce of additional weight.

What is a unitary method?

A unitary method is a mathematical way of obtaining the value of a single unit and then deriving any no. of given units by multiplying it with the single unit.

Given, A weight of 15 ounces stretches a spring 10 inches.

∴ Inches increase of the spring per ounce of weight is the total increase in length divided by the total weight,

= (10/15) inches.

= 0.6 inches of increase in length per ounce.

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Emily has 300 books if Frank were to double the number of books that he now owns he would still have fewer than Emily has

Answers

Frank's current number of books, 'b', satisfies the inequality 2b ≤ 300, and hence, the maximum value for 'b' is 150.

1. Let's assume Frank currently owns 'b' books.

2. According to the given information, if Frank were to double the number of books he now owns, he would still have fewer books than Emily.

3. We know that Emily has 300 books. So, the inequality representing the given information is 2b ≤ 300.

4. To find the maximum value for 'b', we need to solve this inequality.

5. Dividing both sides of the inequality by 2, we get b ≤ 150.

6. This means Frank can own a maximum of 150 books in order to maintain a smaller collection than Emily's 300 books.

The detailed mathematical sentence representing this information is: Frank's current number of books, 'b', satisfies the inequality 2b ≤ 300, and hence, the maximum value for 'b' is 150.

Complete question:

Write a mathematical sentence that expresses the information given below. Use bas your variable name. If necessary: type < = to means or > = to mean . If you need to show multiplication, do not use the letter x. Use the asterisk (*) symbol instead, or simplify your answer. Emily has 300 books. If Frank were to double the number of books that he now owns, he would still have fewer than Emily has.

Every day a zookeeper feeds 4 adult gorillas a total of 160 lb of food. At this rate HOW many pounds of food would the zookeeper need everyday to feed 6 adult gorillas

Answers

Ur total will be 240 lb of food bc if u have 1 adult gorilla a total of 40 u just do 40 *6

Which statement correctly describes the relationship between the graph of f(x) and g(x)=f(x−7) ?

A. The graph of g(x) is the graph of ​f(x)​ translated 7 units left.
B. The graph of g(x) is the graph of ​f(x)​ translated 7 units up.
C. The graph of g(x) is the graph of ​f(x)​ translated 7 units right.
D. The graph of g(x) is the graph of ​f(x)​ translated 7 units down.

Answers

 The answer is c: the graph of g(x) is the graph of f(x) translated 7 units to the right

The statement which correctly describes the relationship between graphs related as g(x)=f(x−7) is; Choice C {The graph of g(x) is the graph of f(x) translated 7 units right}

According to the question; g(x)=f(x−7).

In essence, for every value of x on the graph (g), the value of x on the graph (f) reduces by 7.

Put differently; for every value of x on the graph (f), the value of x on the graph (g) increases by 7.

However, In graphs: an increase on the x axis is depicted by a movement rightward on the number line.

Therefore, if the relation g(x)=f(x−7) holds;

The graph of g(x) is the graph of f(x) translated 7 units right.

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5d - 1 = -11
What is d?

Answers

5d - 1 = -11

5d = -11 + 1

5d = -10

d = -10/5

d = -2

hope this helped, God bless!
The answer is D= -2
Hope this helps :)

Write these portions as percents.
A) 3 tenths and 6 hundredths.
B) 8 hundredths
C) 17 hundredths
D) 11 tenths.

Answers





A)  36%
B)  8%
C) 1.7%
D)  110%




36%
0.8%
0.17%
11%
It's a rough answer but I can say i learned it in school and that's what I remember

Simplify fully: √18 / √8

Answers

sqrt18  = 3 sqrt2
sqrt 8 = 2 sqrt2

sqrt18 / sqrt 8  = 3 sqrt2 / 2 sqrt2  = 3/2  answer

Wilbur went to the Halloween costume party at the Teen Center dressed as Romeo. Wendy was at the same party dressed as Juliet. As fate would have it, their eyes met across the crowded room, and they instantly fell in love. (Cheesy, right?) Unfortunately, they never got to talk to each other at the party and have been trying to find each other ever since! Wilbur went back to the Teen center 2 days after Halloween and goes back there every 13th day hoping to find his Juliet. Wendy went back to the Teen Center four days after Halloween and goes back there every 17th day looking for her beloved Romeo. When will they miss each other by just one day?
When will the meet?

Answers

I think this is fake but ima say my answer anyway subtract 17 by 14 and u have ur answer I think I don't think this is a math question but, little tiny tottie Middle schoolers have it different in highschool so I don't know.

which numbers represents a repeating decimal -2/5, -7, 3/9, 11/12

Answers

-2/5=-.4
-7=-7

These two are repeating decimals.
3/9=.3333334

11/12=.9166667

plz help me on this question

Answers

the line that passes through the origin (0, 0) is direct variation, so the second graph.

HURRY MATH QUESTION DOWN BELOW

Answers

The answer should be 18/54

ms.Jackson and 3 of her friends went out for sushi. They order 6 rolls and 4 sodas. The soda is $3.75 less than the rolls. They spent a total of $70.50. What is the cost of one roll, Write and equation and solve.

Answers

Ms. Jackson + her 3 friends = 4 people all together

Find how many would each person be getting/eating.
6 rolls / 4 people = 1.5 roll(s) a person

First, subtract 3.75 from 70.50.
70.50 - 3.75 = 66.75

Take 66.75 and divide that by 4 (people)
66.75 / 4 = ~ (about) 16.69

Lastly, take 16.69 and divide that by 1.5 (roll(s))
16.69 / 1.5 = ~ (about) 1.11 each roll

I'm not sure that is right but I tried :(: I hope this works and is right! :) Sorry if it isn't! :(

9n+21−3n−24 simplify

Answers

Alright First you combine the like terms. 
9n - 3n = 6n 
21 - 24 = -3 

Rewrite the simplified equation
6n - 3 = 0

Solve for n 
6n = 3 
n = 3/6 
n = 1/2 

Ask if you need more help! :)

Given f(x)= -4x+7, find f(1)

Answers

Hi there!

To find f(1), plug in x=1 into the equation
f(1) = -4(1) + 7
= -4 + 7
= 3
That's your answer.
Have an awesome day! :)

From your friendly Helper-in-Training, collinjun0827
You replace x with 1, so this looks like:
-4(1) + 7 
-4 * 1 also equals -4, so, -4(1) + 7 = -4 + 7. -4 is the slope (down 4 to the left 1), and 7 is the y-intercept, so there should be a point on 7 on the up and down line which is y.

It costs a family $216 to refinish a wood floor. They want to refinish floor in a larger room. The ratio of corresponding sides is 3:4. How much would it cost to refinish wood floor in the larger room?

A) $396
B) $384
C) $262
D) $288

Answers

The cost for the larger room comes out to be $384. Option B) is the correct answer.

The cost of refinishing a wood floor in a room is related to the area of the floor. Since the ratio of the corresponding sides of the two rooms is 3:4, the ratio of their areas is the square of the ratio of the sides, being 9:16 (since 32 = 9 and 42 = 16). To find the cost to refinish the larger room, we can set up a proportion where $216 corresponds to an area with a 'weight' of 9, and x corresponds to an area with a 'weight' of 16.

Mathematically this can be represented as 216/9 = x/16. Solving for x, we calculate x = (216/9) imes 16 = 24 imes 16 = $384. Therefore, the cost to refinish the wood floor in the larger room would be $384, which corresponds to option B).

It cost to refinish wood floor in the larger room is $384. So option (b) is correct.

To solve this problem, we'll use the concept of ratios to find the cost of refinishing the wood floor in the larger room.

First, let's set up the ratio of the areas of the two rooms. Since the ratio of corresponding sides is 3:4, the ratio of their areas will be 3^2 : 4^2, which is 9:16.

Now, since the cost of refinishing the smaller room is $216, we need to find what portion of the total cost that represents. Since 9 parts represent $216, 1 part represents $216 ÷ 9 = $24.

Next, we'll find the total cost of refinishing the larger room. Since the larger room has 16 parts (as per the ratio), the total cost will be 16 parts × $24/part = $384.

So, the correct answer is B) $384.

Here's the detailed calculation:

Find the ratio of areas of the rooms: [tex]\(3^2 : 4^2 = 9 : 16\)[/tex]

Find the cost per part: (216 ÷ 9 = 24)

Find the total cost for the larger room: [tex]\(16 \times 24 = 384\)[/tex]

grace has 2 cups of strawberries and plans to divide this amout into equal parts to make 3 strawberry pies what fracion of a cup of strawberries will be used for each pie?

Answers

2/3 is the fraction to the answer you just asked on brainly


A bar of copper has a mass of 216 g and a volume of 24 cm. what is the density of copper

Answers

This is how I found the answer

The density of copper bar is 9g/cm³

Given that :

Mass of copper bar = 216 g

Volume = 24 cm

Density of copper will be :

Recall :

Density = Mass / Volume

Density = 216 g / 24 cm³

Hence, Density of copper bar = 9 g/cm³

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Evaluate. (1/4)^-2 - (5^0×2)×1^-1

Answers

14 would be the answer 
Hope this helps...

(1/4)^-2 - (5^0×2)×1^-1
(1/4)^-2 - (1×2)×1^-1 
(1/4)^-2 - 2×1^-1    
0.25^-2 - 2×1^-1   
16 - 2×1
16 - 2
14  
 
You're welcome

help me please,it will be greatly appreciated

Answers

1) √3(2)-2/3^2 = √6-2/9= 2/9
As you see, as according to the rule, 3 would be represented by the variable a while 2 would be represented by the variable b. Since you know this, you simply plug the values into the equation, plugging 3 in where a belongs and plugging 2 in where b belongs. After this, you simplify which gets you to your answer, 2/9.

2.)3(ab^2)^3= 3(a^3b^2*3)=3(a^3 b^6)= 3a^3b^6
Since you know the rule of indices or indexes (the power) in this case would be distributing the outside exponent, 3 to the inner exponents a^1(since there is no power labeled, it is implied that a is raised to the first power) b^2, which would be multiplying the outside exponent to the inner indexes. Then, once you have done this, you distribute the value, 3, to a^3b^6. 



If 1 oz of potato chips contains 180 calories, how many ounces would contain 3,180 calories

Answers

Since 180calories = 1oz, divide 3180 by 180 and you will get the ounces. 
3180/180 = 17.666

17.666oz

In 17.66 ounces of chips, 3180 calories are there.

What is a unitary method?

A unitary method is a mathematical way of obtaining the value of a single unit and then deriving any no. of given units by multiplying it with the single unit.

Given, 1 oz of potato chips contains 180 calories.

∴ No. of ounces of chips that contains 3180 calories can be obtained if we divide total calories by calories in 1 oz which is,

= (3180/180).

= 17.66 ounces.

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Rewrite as a square or a cube:
3 3/8 =_____

1 11/25=_____

Answers

1)

3 3/8=  (3/1) + (3/8)=
     = (3x8)/8 + (3/8)
     =(3x8 +3) / 8              putting both numbers with the same denominator
      =27/8
27 is the same as 3³      3x3x3= 27
8 is the same as 2³        2x2x2= 8
= 3³÷ 2³

2)
1 11/25= (1/1) + (11/25)
= (25/25) + (11/25)     putting both numbers with the same denominator
= (25+11)/25
=36/25
36 is the same as 6²     6x6=36
25 is the same as 5²     5x5=25

6²/5²

Answer:

1)


3 3/8=  (3/1) + (3/8)=

    = (3x8)/8 + (3/8)

    =(3x8 +3) / 8              putting both numbers with the same denominator

     =27/8

27 is the same as 3³      3x3x3= 27

8 is the same as 2³        2x2x2= 8

= 3³÷ 2³


2)

1 11/25= (1/1) + (11/25)

= (25/25) + (11/25)     putting both numbers with the same denominator

= (25+11)/25

=36/25

36 is the same as 6²     6x6=36

25 is the same as 5²     5x5=25


6²/5²


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Step-by-step explanation:


Mr.hollins determines that he gives away $800 each month. If he gives away 16% of his budget, how much is his overall budget ?

Answers

His overall budget is $672
He has $672 after he gives away 16% of his budget. The 16% is $128

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