A group of 9 friends go out to dessert and spend $72.45 including tax.
which costs $8 or a fruit salad which costs $5. The tax on the bill was
ice cream sundae and how many ordered a fruit salad?

Answers

Answer 1
I’m not sure about this one but you previous ques was solved

(X+40) (3x-20)

Just multiply them first

3x^2 - 20x + 120x - 800

3x^2 - 100x - 800


Related Questions

In what case does 8 + 8 = 4?
The correct answer, = 20 points and brainliest.
Please answer if you know the answer
Good luck!!!

Answers

Step-by-step explanation:

8:00 + 8:00 = 16:00 = 4:00PM

PLSSS HELP MEE SHOW UR WORK!!

Answers

Answer:

(-3, 13)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Terms/CoefficientsCoordinates (x, y)Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

y = -4x + 1

11y = x + 146

Step 2: Solve for x

Substitution

Substitute in y:                                                                                                  11(-4x + 1) = x + 146Distribute 11:                                                                                                      -44x + 11 = x + 146[Addition Property of Equality] Add 44x on both sides:                                11 = 45x + 146[Subtraction Property of Equality] Subtract 146 on both sides:                      -135 = 45x[Division Property of Equality] Divide 45 on both sides:                              -3 = xRewrite/Rearrange:                                                                                          x = -3

Step 3: Solve for y

Define original equation:                                                                                 y = -4x + 1Substitute in x:                                                                                                 y = -4(-3) + 1Multiply:                                                                                                           y = 12 + 1Add:                                                                                                                    y = 13

HELPPP MEEEEEEE
with this math

Answers

Answer:

it should be 1/8

Step-by-step explanation:

Please help. Cesium-137 has a half-life of 30 years. Identify the amount of cesium-137 left from 150 milligram sample after 120 years.
1.325 mg
0.9375 mg
9.3750 mg
1.097 mg

Answers

Answer:

1.325 mg

have a good day :)

Answer:

9.3750 mg

Step-by-step explanation:

The side length of the base of a square pyramid is 30 centimeters. The height of the pyramid is 45 centimeters. What is the volume of the pyramid in cubic centimeters.

Answers

Answer: 450 cm³ is the volume

Step-by-step explanation:

Volume of pyramid = L x W x H divide by 3

The required volume of the given square pyramid is 20,250 cubic centimeters.

Given that,
The side length of the base of a square pyramid is 30 centimeters. The height of the pyramid is 45 centimeters. The volume of the pyramid in cubic centimeters is to be determined.

What is volume?

Volume is defined as the ratio of the mass of an object to its density.

Here,
The volume of the square pyramid is given as,
= 1/2 area of base × height
= 1/2[30×30]×45
= 900 × 45 / 2
= 20,250 cubic centemeters.

Thus, the required volume of the given square pyramid is 20,250 cubic centimeters.

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How many terms are in the given expression?
52 + Zn - 2f

Answers

Answer:

3

Step-by-step explanation:

Answer:

3 terms are given

Step-by-step explanation:

At a sleepover, three friends ate of a pizza for a
snack the next day, the friends ate of the leftover
pizza What fraction of the whole pizza was not eaten?

Answers

Answer:

none

Step-by-step explanation:

if they ate it all as leftovers then there was no pizza left uneaten

79.2 is what percent of 110?

Answers

Answer:

72

Step-by-step explanation:

Answer:

75%

Step-by-step explanation:79.2 divided by 110 = 0.75. move the decimal two places and you get 75.

27 POINTS!!!!!!!!!!!!! PLEASE!!!!

Answers

Answer:

       

Step-by-step explanation:

Plz, HELP me with this question!

Answers

Answer:

2/3

Step-by-step explanation:

There is a 2 in 3 chance the pointer will not land on c or d.

PLEASE HURRY~ DUE SOON

You ride your bicycle along the outer edge of the park. Then you take a shortcut back to where you started. Find the length of the shortcut. Round your answer to the nearest tenth.

Answers:

100m

60m

116.6m

160m

Answers

Answer:

116.6

Step-by-step explanation:

Answer:

116.6

Step-by-step explanation:

To solve this equation you would need to use the pythagorean theorem. The pythagorean theorem is [tex]a^{2} +b^{2}= c^{2}[/tex] where a and b are lengths of the triangle and c is the hypotenuse (the longest side of a triangle) in this case, the short cut.

First, you would substitute values into the equation:

[tex]100^{2}+60^{2}= c^{2}[/tex]

Then, you would multiply out the squares:

[tex]10,000+3600=c^2[/tex]

Add the numbers together:

[tex]13600=c^2[/tex]

Take the square root of both sides to get the answer:

[tex]c=116.619037897[/tex]

Then round to the nearest tenth to get the answer: c=116.6

HELP! Need to finish this or my dad will go nuts.

Answers

Answer:

The answer is 6.

Step-by-step explanation:

So basically, since we know that 4 x 4 is 16, then all we have to do is multiply 1 1/2 by 4. 1 1/2 times 4 equals 6.

Answer:

6 pages

Step-by-step explanation:

all you have to do is multiply 1 1/2 by 4 if 4x4 =16

A worker spent 3/4 of his monthly salary on food and 1/2 of the remainder on rent if he has 1500 left how much does he earn in a month ​

Answers

Answer:

$4000

Step-by-step explanation:

1500 × 2 =3000

3000 × ³/4 = 4000

Could anyone mind helping I have until 9

Answers

Vertex: (1,-9)
Max or Min: Min
Axis of symmetry would go through 1 on the X-axis.
Number of zeros: 2
Roots: (-2,0) and (4,0)
Domain: All real numbers
Range: Y is greater than or equal to -8

Solve for in the diagram below.
110°
K
(8x + 30)
=

Answers

Answer:

8x+30=110

8x=110-30

8x=80

x=80/8

x= 10

Step-by-step explanation:

0. The temperature drops 2 degrees per hour for 3 hours. Which of the
following expressions does NOT describe this change in temperature?
a. -2 + (-2) + (-2)
b. 2(3)
d. -2 - (2) - (2)
c. -2(3)​

Answers

Answer a,b, and d

Explanation: c is the only correct expression while the rest aren’t

Answer:

B. 2(3)

Step-by-step explanation:

The other 3 all shows decreasing of 2 three times. 2(3) would be increasing.

3y=4.8 (I'm so confused it isn't even funny)

Answers

Answer:

y = 1.6

Step-by-step explanation:

4.8/3=1.6

3*1.6=4.8

Answer:

[tex]y = 1.6[/tex]

Step-by-step explanation:

[tex]3y = 4.8[/tex]

Use inverse operations to solve this problem. Inverse operations is a method of solving a linear (and in some cases quadratic) equation. This method has one do the same operations to both sides such that it cancels out the operations done to the variable, and hence, it leaves one with the solution.

In this case, all one has to do is divide both sides by the coefficient of the varibale (y).

[tex]3y = 4.8[/tex]

÷[tex]3[/tex]

[tex]y = 1.6[/tex]

The population of the town increased from 175000 to 262500 in a decade. What is the average percent increase of population per year?

Answers

Answer:

5%

Step-by-step explanation:

As given,

The population of the town increased from 175000 to 262500 in a decade.

⇒ In 10 years , population increased from 175000 to 262500

⇒% increase = [tex]\frac{262500 - 175000}{175000}[/tex]× 100% = [tex]\frac{87500}{175000}[/tex]×100% = 0.5×100% = 50%

Now,

Average % increase = [tex]\frac{percent increase}{Total years}[/tex] = [tex]\frac{50}{10}[/tex]% = 5%

∴ we get

Average percent increase of population per year = 5%

The record time for the girls' 50-meter free style swimming competition is 24.49 seconds. Camilla has been training and wants to swim the 50-meter free style in less time. What are some possible times Camilla would have to swim to break the current record? Solve this problem any way you choose.

Answers

Answer:

[tex]x < 24.49[/tex]

Step-by-step explanation:

Given

[tex]Record = 24.49[/tex]

Required

Possible time to break the record

Since no option is given to select from. I will answer the question using inequalities

For her to break the record, she must swim at a time less than 24.49.

i.e. 24.48, 24.00, 23, 22.50, etc...

Represent the time with x.

So, the inequality is:

[tex]x < 24.49[/tex]


The graph of y = f(x) is shown.
a) Find f(0)
4-
3.
b) Give the roots of f(x) = 0

Answers

Answer:

f(0) = 2

Roots are;

-2 and -1

Step-by-step explanation:

F(0) simply refers to the y-values when x = 0

This is the point at which the graph crosses the y-axis

the value here is 2

To

find the roots of f(x) , we simply find the points at which the plot crosses the x-axis

we have this at x = -2 and x = -1

These are what represents the roots of the equation

mrs. washington's class has x student. Three-fourths of these students like pizza.If 21 students in the class like pizza, which equation can be solved to determine the number of students in the class?
A. 21x = 3/4
B. 21x = 4/3
C. 4/3x = 21
D.3/4x = 21

Answers

It’s c have a good day pls brainlest):

please help i have to turn in in 8 mins....thanks :)

Answers

6√3

Step-by-step explanation:

6 is x. side across from right angle (12) is 2x. so 6x2 to get 12. missing side is x√3. so 6√3

Answer:

6√3

Step-by-step explanation:

using the pythagorean theorem you can plug in the numbers to get √(12^2 - 6^2) = √(144-36) = √108 = 6√3.

PLS HELP I WILL GIVE BRIANLY

A box has a certain number of blue,white,red and yellow marbles. 2/5 of the marbles are blue. The number of white, red and yellow marbles in the box are equal. Which of the following could be the number of marbles in the box?​

Answers

What are the options?

what is the question again?

Which of the following situations can be represented by
C = 10 + 0.44n?
Your answer:
A. The total cost at the grocery store for a cake that cost $10 and n bananas that cost $0.44 each.
B. The total cost of 10 soft drinks that cost $0.44 each.
C. The height of a plant after n days that was 10 centimeters tall and it grew 4.4 milimeters a day.
D. Not here

Answers

Answer:

A and C

Step-by-step explanation:

Help ASAP! Question 12 points)
05.02 MC
The angles below are supplementary. What is the value of x? (5 points)
5
7.5
15
30

Answers

it is b) 7.5 ........your welcome

Answer:

D

Step-by-step explanation:

supplementary means two angles that there sum will be 180. and 30 x 4 = 120 + 20 = 140 and if you add the other angle 40 that's 180.

Katy inherited a savings account that was started by her grandfather 20 years ago. His investment can be modeled by the function
A(t) = 10,000(1.012)^t+ 20, where A(t) represents the value of the account, in dollars, t years after the inheritance. Which function is
equivalent to A(t)?
A)
A(t) = 10,000(1.012)^20
B)
A(t) = 10,000[(1.012)^t]^20
C)
A(t) = 10,000(1.012)^t (1.012)^20
D)
A(t) = 10,000[(1.012)^t + (1.012)^20]

Answers

Is c because it makes sense to me

A student is solving -5+2x=15 find the students mistake and correct it

Answers

Answer:

correct students

-5+2x=15

2x=15+5

2x=20(divided by 2 both sides)

x=10

mistake students

-5+2x=15

-3x=15(divided by - 3 both sides)

x=-5

The required simplified value of the given expression is given as x = 10.

What is simplification?

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 expression,
-5 + 2x = 15

Now,
Adding 5 on both sides,
2x = 15 + 5
2x = 20

Divide by 2 into both sides
x = 10

Thus, the required simplified value of the given expression is given as x = 10.

Learn more about simplification here:

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The question is incomplete, the correct solution is given above, to determine the mistake of the student, compare the above solution with the student solution.

Select the correct answer.
Which expression is equivalent to x + y+ x + y +30+5)?
A. 2x + 5y+ 5
B. 2x + y + 30
C. 2x + 5y + 15
D.2x + 3y + 10

Answers

Answer:

Step-by-step explanation:

Like terms have same variable with same exponent. Combine the like terms.

x + x = 2x  {Just add the coefficient}

x + y + x +y + 30 + 5 = x +x  +  y + y   + 30 + 5

                                 = 2x + 2y + 35

negitive 17plus n over 5 =33 what is n

Answers

Answer:

250

Step-by-step explanation:

-17+n/5=33

n/5=33-(-17)

n/5=33+17

n/5=50

n=50*5

n=250

n=182

Step by Step Explanation:

The equation we would start out with is:

[tex] \frac{ - 17 + n}{5} = 33[/tex]

From here, we need to multiply both sides by 5. This would create an equation of -17+n=165, as we canceled out the 5.

Then, you need to add 17 to both sides to isolate the variable. This would make the equation n=182, our final answer.

what is V(0)=80(0.4)t

Answers

pretty sure the solution is t=0
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