Amela put 15x- 4 gallons of gas in her car at the beginning of the week. She used 7x-3 gallons driving to work. Which of the following choices represents the
number of gallons left in her car?

A) 22x+7
B) 22x-7
C) 8x+1
D) 8x-1

Answers

Answer 1

Answer:

D) 8x - 1

Step-by-step explanation:

Let's say that x = 5.  That would mean Amelia put 15(5) - 4 gallons of gas in her car, which equals 71 gallons.  She used 7(5) - 3 gallons driving to work, which is 32 gallons used.  71 - 32 = 39 gallons left.  

What else equals 39, you might ask?

8(5) - 1

40 - 1

39.

Answer 2

Answer:

D is the answer

Step-by-step explanation:


Related Questions

Mila needs to order some new supplies for the restaurant where she works . The restaurant needs at least 754 spoons. There are currently 313 spoons. If each set on sale contains 6 spoons, write and solve an inequality which can be used to determine x, the number of sets of spoons mila could buy for the restaurant to have enough spoons

Answers

Answer:x>73.5

-

Inequality: 6x + 313> 754

-

Step-by-step explanation:

The number of sets of spoons Mila could buy for the restaurant to have enough spoons:

x ≥ 74

What are inequalities?

Inequalities are the comparison of mathematical expressions, whether one quantity is greater or smaller in comparison to another quantity.

We use these symbols to represent inequalities, '>' , '<', '≥', '≤'

Let x be the number of sets of spoons Mila buys. Each set contains 6 spoons, so the total number of spoons Mila will buy is 6x.

The restaurant needs at least 754 spoons, and there are currently 313 spoons, so the total number of spoons needed is:

754 - 313 = 441

we can write the inequality:

6x ≥ 441

To solve for x, we can divide both sides of the inequality by 6:

x ≥ 73.5

x ≥ 74

Therefore, Mila needs to buy at least 74 sets of spoons to ensure that the restaurant has enough spoons.

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If the value of the x=4 y=3 and z=-2 find value of

A. (x+y)² - 2z B. 2xy-3z C. 2x²-4y+z​

Answers

Step-by-step explanation:

A=(4+3)²-2(-2)=7²+4=49+4=53

B=2(4)(3)-3(-2)=24+6=30

c=2(4)²-4(3)+(-2)=2(16)-12-2=32-14=18

Hope this helps. I know I was the second but I had already solved it so decided why not?

please help me with my question due tomorrow morning I will like and mark as brainliest for the first correct answer please​

Answers

Answer:

p = (2k + 1)i + j

q = 25i + (k + 4)j

p . q = 11

Find the dot product of p and q

(2k + 1)(25) + (k + 4) = 11

50k + 25 + k + 4 = 11

51k = -18

k = - 18/51 = 6/17.

b) p.q = |p||q|cos∅

p= (2k + 1)i + j = [2(-6/17) + 1)i + j ]= 5/17i + j

|p| = √ (5/17)² + 1²

|p| = √314/ 17 ( The square root doesn't cover the 17) = 1.0424

q = 25i + (k + 4)j = 25i + ( -6/17 + 4)j

q = 25i + 62/17 j

|q| = √ 25² + (62/17)²

= 25.2646

Now applying them to the formula above

We already have p.q = 11 from the question.

11 = (1.0424)(25.2646)Cos∅

11 = 26.3358Cos∅

Cos∅ = 11/26.3358

Cos∅ = 0.4177

= 65.31°.

This should be it.

Hope it helps

A car accelerates along a straight road, which is 15km long. The car reaches a speed of 75 km/h in 10 s. The average acceleration of the car is


Select one:

A. 2.1 m/s ^2

B. 7.5 m/s ^2

C. 1.5 m/s ^2

D. 5.0 m/s ^2


^2 means exponent

Answers

Answer:

I think answer id B.and this will right you make me brillent student

The acceleration will be 2.1 meters per second. The correct option is A.

What is acceleration?

Acceleration of any object is defined as the variation in the speed of the object with the variation of the time. Acceleration is a vector term and to define it we require both the magnitude and the direction. The unit of the acceleration can be m / sec², miles / sec², etc.

Given that a car accelerates along a straight road, which is 15km long. The car reaches a speed of 75 km/h in 10s.

The acceleration will be calculated as below:-

Acceleration = Velocity / Time

Velocity = 75 km / h = 75 x ( 5 / 18 ) = 20.83 m / s

Acceleration = Velocity / Time

Acceleration = 20.83 / 10 = 2.08 or 2.1 m / s²

Therefore, the acceleration will be 2.1 meters per second. The correct option is A.

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If jonny has 19 apples then adds 19 more apples to his collection how many does he have

Answers

Answer:

it should be 38

Step-by-step explanation:

Just add 19 more to the amount you already have.

The final model from the Example is shown.
Draw a line around the part of the model that
represents 1 square yard.


Please help thank you

Answers

Answer:

Can anyone check out my page and answer my question??

Step-by-step explanation:

.

The area of the given model is 4/6 square yards.

What is the area of a rectangle?

The area occupied by a rectangle within its boundary is called the area of the rectangle. The formula to find the area of a rectangle is Area = Length × Breadth.

From the given figure, length of a rectangle is 4/3 yards and the width is 1/2  yards.

Here, area of a model is 4/3 × 1/2

= 4/6 square yards

Therefore, the area of the given model is 4/6 square yards.

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find the indicated length

Answers

Answer:

x=6

AC = 28

Step-by-step explanation:

4x+4= AC

4x +4 = 14 + 3x -4

4x-3x= 14-4-4

x = 6

AC = 4(6) +4 = 24+4 = 28

please help asap and show work pls

Answers

Answer:

Answers are a. 8, b. 10, c. -2, d. invalid

Step-by-step explanation:

a.

[tex]f(x)=|x|\\So, f(8)=|8|=8\,;[Modulus\,\,is\,\,always\,\,the\,\,positive\,\,value][/tex]

b.

[tex]f(x)=3^x+1\\f(2)=3^2+1=9+1=10[/tex]

c.

[tex]f(k)=\frac{k}{2}+1\\f(-6)=\frac{-6}{2}+1=-3+1=-2[/tex]

d.

[tex]f(x)=\sqrt{x-5} \\f(3)=\sqrt{3-5}=\sqrt{-2}\\There\,\,is\,\,no\,\,real\,\,solution\,\,for\,\,root\,\,of\,\,a\,\,negative\,\,number[/tex]

Hope you have understood this.....  

ask me if you have any confusion.....  

if you liked it pls mark it as the brainliest

I need help/ explanation. Algebra 2 15 points

Stretch the graph of f(x) vertically by a
factor of 2.

I need to know how to do this.

Answers

Answer:

For each point on the curve given, make a new point that has the same x value but double the y value.

Step-by-step explanation:

Pick several points on the graph given. the easiest points to pick would be (-2, 0), (0, 2) and (2, 0). That's the point on the far left, the point on the top of the curve in the middle, and the point on the far right. For each of these points, make a new point that's twice as high but has the same position left/right. For the far left point and the far right point, the new point will be the same as the old point because the height is zero and double zero is still zero. For the point in the middle the new height will be four since the old height was just two. Then draw a nice curve through those points and you will have the answer. It will be a mound that's twice as tall as the current mound but the same width.

Someone help pleasee

Answers

Answer:

a horizontal translation 3 units to the right because-3 has been added to the exponent

find one counterexample to show that each conjecture is fake. for two real numbrts a and b, a is either equal to b or greater than b.

Answers

Answer:

.zie8fieiosowdue7fieid92iqopq o ofoo pdoc

Is the fraction 6 1/4 a natural number, whole number, integer, rational number, or a irrational number?

*FYI, I think it is a rational number. Lmk if I am wrong :)*

Answers

Answer:

your right it is a rational number

13. R(-9, 4) and S(2, -1); Find T.

Answers

Answer:

you dont have enough information

Step-by-step explanation:

what is 4.414*10 9 in standard form

Answers

Answer:

4,414,000,000

Step-by-step explanation:

4.414x10^9, move the decimal place 9 places to the left.

Carson buys eggs and lemons at the store.
He pays a total of $39.62.
He pays $6.74 for the eggs.
He buys 8 bags of lemons that each cost the same amount.

Which equation could be used to determine xx, how much each bag of lemons costs?

Answers

Answer:

8x  = 39.62 - 6.74

Step-by-step explanation:

Cost of 1 bag of lemons = $ x

Cost of 8 bags of lemons = 8 *x = 8x

Cost of 8 bags of lemons = Total cost - cost of the eggs

                              8x           = 39.62 - 6.74

Answer:

3.

Step-by-step explanation:

[tex]x + y = 39.62 \\ x = 6.74 \\ y = \frac{39.62 - 6.74}{8} [/tex]

I need help on this please.

Answers

Answer:

Write in the box :....

30

You are offered two jobs. One with a yearly salary of $51,670, and the other an hourly
job with a rate of $26 per hour. Both require you to work for 45 hours a week. How
much more will you make by taking the hourly job?

Answers

Step-by-step explanation:

a year = 52 weeks

a year working hours = 45× 52 = 2340 hours

first job rate per hour = $51670 ÷ 2340 hours

= $22

sec job rate per hour = $26

Which number can each term of the equation be multiplied by to eliminate the fractions before solving?
- m-{ =2+3m
2
3
.
4.
05

Answers

Answer:

4 is the correct answer.

Number "4" can each term of the equation be multiplied by to eliminate the fractions before solving.

What is algebraic Expression?

Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression or algebraic expression. In the phrase 4m + 5, for instance, the terms 4m and 5 are separated from the variable m by the arithmetic sign +.

To eliminate the fractions in the equation -3/4m -1/2m=2+1/4m, we need to find the least common multiple (LCM) of the denominators of the fractions, which is 4.

We can then multiply each term of the equation by 4 to eliminate the fractions.

So, multiplying both sides of the equation by 4, we get:

-3m - 2m = 8 + m

To simplifying, we have:

-5m = 8 + m

To solve for m, we can isolate the variable on one side of the equation. Adding 5m to both sides, we get:

4m = 8

Finally, dividing both sides by 4, we get:

m = 2

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PLEASE HELP ME FAST I WILL GIVE 55 POINTS AND BRAINLIEST AND HEART
Questions 10-12
f(x)= 3x-13
g(x)= 2x^2-4x-5
h(x)=4^x-7

10. Find (f - g) (x)
11. Find (f - h) (x)'
12. Find (f + g) (x)

Answers

I think this is a composition function material ¤¤

Sory this is my answer.

given MN= PQ, NO=QR,.and OM=RP ​

Answers

Answer:

Step-by-step explanation:

Evaluate the function.
f(x) = –22 +2
Find f(-1)

Answers

Answer:

Cant do this problem since there is no x variable. So the answer would be :

f(x) = -22+2

Step-by-step explanation:

When ringing up a customer, a cashier needs 6 seconds to process payment as well as 1
second to scan each item being purchased. If it takes 20 seconds to ring up a customer,
how many items are being purchased?

Answers

Answer:

14 items

Step-by-step explanation:

20 seconds minus the six it takes to process purchase is 14 and if i takes 1 second to scan each item 14 times 1 is 14

Answer:

14

Step-by-step explanation:

to process payment = 6 sec

each item = 1 sec

total = 20 sec

From this information, we can formulate an equation where x = number of items being purchased.

[tex]6+1(x) = 20[/tex]

[tex]x=20-6\\x=14[/tex]

4/3 ÷ 5/3
Answer must be in simplest form.​

Answers

answer is 4/5
decimal form is 0.8

If 4/5 = N/1٫ then N=

Answers

Answer:

4/5 ....

Step-by-step explanation:

N/1 = N

so... um...

4/5 = N/1

4/5 = N

N = 4/5

Answer:

N = 0.8

Step-by-step explanation:

4/5 = N/1

0.8/1 = N/1

0.8 = N

Tyrell gave 3 packs of baseball cards to his friends. He gave each friend 1/2 of a pack. How many friends got baseball cards?

Answers

9! Hope this helps ya out

Answer:

The answer is 6, my other answer got deleted for being "incomplete" even through I was marked as brainliest

Step-by-step explanation:

PLEASE ANSWER THIS QUICK!!!!


Suppose you solve an equation and
find that your school needs 4.3 buses for a class trip.
Explain how to interpret this solution.

Answers

Answer:

you need 5 buses and 4 will be totally full and one will only be 1/3 full

or you can have 14% of all 5 buses with empty seats

Step-by-step explanation:

i need help ;^; please​

Answers

Answer:

[tex] \sqrt{3 {x}^{2} {y}^{3} } \times 2 \sqrt{72 {x}^{3} {y}^{4} } \\ = 2 \sqrt{3 {x}^{2} {y}^{3} 72 {x}^{3} {y}^{4} } \\ = 2 \times 6 \sqrt{6} \times \sqrt{ {x}^{5} {y}^{7} } \\ 12 \sqrt{6} {x}^{2} {y}^{3} \sqrt{xy } \\ 12 {x}^{2} {y}^{3} \sqrt{6xy} \\ thank \: you[/tex]

12x^2y^2 -_/6xy

thats the answer you're looking for

Find the following for each function
f(x)=-2x^2+x-1
a.f(0)
b.f(1)
c. f(-1)
d. f(-x)
e.-f(x)
f. f(x+1)
g. f(2x)
h.f(x+h)
HELP PLEASE

Answers

Answer:

un

Step-by-step explanation:

From a population of size 600, a simple random sample of size 58 is selected. The sample mean is 400, and the sample standard deviation is 40. An approximate 95% confidence interval for the population total is _____. a. 350 to 400 b. 350,000 to 450,000 c. 234,010 to 245,990 d. 390 to 409

Answers

Answer:

b. 350,000 to 450,00

Step-by-step explanation:

Write the equation of the circle centered at (4, - 9) with diameter 16.
HELP A GIRL OUT

Answers

Answer:

16= (x-4)^2 +(y+9)^2

Step-by-step explanation:

hey! The formula for the equation of a circle is r^2= (x-h)^2 + (y-k)^2

r= the radius (in your case you have the diameter so you do not need to square it)

(h,k)= is the center coordinates, so your center coordinate would be (4, -9). You now have your h (h=4) and your k (k=-9) so you can plug it in the formula! :)

a nice rating would help out

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