The total cost of 4 starfish was $7.20. Write and solve an equation to find how much one starfish cost.

Answers

Answer 1

Answer:

$1.80

Step-by-step explanation:

4x = 7.20

x = 1.80


Related Questions

find the perimeter of the shape below​

Answers

Answer:

It doesn't show the whole picture

Step-by-step explanation:

f(x)=3x(x^2+4x-5) evaluate f(-2)​

Answers

Answer:

f(-2) = 54

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

f(x) = 3x(x² + 4x - 5)

f(-2) is x = -2

Step 2: Evaluate

Substitute in x  [Function]:                                                                             f(-2) = 3(-2)[(-2)² + 4(-2) - 5][Brackets] Evaluate exponents:                                                                     f(-2) = 3(-2)[4 + 4(-2) - 5][Brackets] Multiply:                                                                                         f(-2) = 3(-2)[4 - 8 - 5][Brackets] Subtract:                                                                                        f(-2) = 3(-2)[-4 - 5][Brackets] Subtract:                                                                                        f(-2) = 3(-2)(-9)Multiply:                                                                                                           f(-2) = -6(-9)Multiply:                                                                                                           f(-2) = 54

Question 5
What is the equation of the line?

Answers

Answer:

y = -3× + 1

Step-by-step explanation:

rise / run = 3 / -1 = -3

y intercept = 1

therefore y = -3× + 1

Tonya has 39 packages. Each package weighs 6 pounds. Choose the best estimate of the total weight of the packages.

Answers

Step-by-step explanation:

If were estimating, 39 is pretty close to 40 and 40x6 is 240 pounds. if we are getting exact about it, then 234 pounds

Help meeeeeeeeeeeeeeeeeeeeee

Answers

the light blue one, i thinkkk

Answer:

The equation model for the transformed graph f(x) = -5×+ 3 -6.


The prism shown has a volume of 35 cm^3
Work out h, the height of the triangular cross section.
Length =7 cm
Base=4 cm

Answers

Answer:

[tex]Height = 2.5[/tex]

Step-by-step explanation:

Given

[tex]Volume = 35[/tex]

[tex]Length =7[/tex]

[tex]Base=4 cm[/tex]

Required

Determine the height

The volume is calculated as:

[tex]Volume = Height * Base\ Area[/tex]

Since, it has a triangular cross-section, the expression becomes:

[tex]Volume = Height * \frac{1}{2} * Base * Length[/tex]

So, we have:

[tex]35 = Height * \frac{1}{2} * 4 * 7[/tex]

[tex]35 = Height * 14[/tex]

[tex]Height = 35/14[/tex]

[tex]Height = 2.5[/tex]


Which expression is equivalent to b less than 50?
A 50b
B b - 50
C 50/b
D 50 - b

Answers

Answer:

50-b

Step-by-step explanation:

Whatever letter/number it begins with, it's that minus the second letter/number.

In NOP, the measure of ZP=90°, the measure of ZN=7°, and NO = 3.4 feet.
Find the length of OP to the nearest tenth of a foot.

Answers

I’m not sure try again and tell me

Which statement is true about the value of (6-n)(6n)

Answers

Answer:

6-n

Step-by-step explanation:

Just put that down for your answer

What is the radius of a circular lid with a diameter of 5 centimeters?
radius

Answers

Answer:

5/2 =

2.5

Step-by-step explanation:

in a class the ratio of boys to girls is 3/2. if there are 12 boys in the class, how many girls are there? ​

Answers

Answer:

8

Step-by-step explanation:

3 times 4 is 12 and 2 times 4 is 8

8
12/3=4 so that mean you have to multiply 2x4 you get 8

Simplify the following:
2x^3-3x^2+4x+5 / x+2
Show steps! Please help for college prep math

Answers

answer:

2x^3-3x^2+9x+2

step-by-step explanation:

i added 4x and 5x to get 9x

good luck :)

hopefully, this helps

have a great day !!

Which of the following shapes have an area of 48 square feet? Select all that apply.
A scalene triangle with a base of 8 feet and a height of 6 feet.
A right triangle with a base of 9 feet and a height of 10 2/3 feet.
A rectangle with a base of 19.2 feet and a height of 2.5 feet.
A parallelogram with a base of 16 feet and a height of 3 feet.

Answers

I think 2,3,4 or B,C,D would be correct.

The area of a triangle is (b•h)/2
And the area of a rectangle and parallelogram would just be b•h

1) 8(6) = 48/2 =24

2) 9(10 2/3) = 96/2 =48

3) 19.2(2.5) = 48

4) 16(3) = 48

Hope this is right and hope it helps. Have a good day

A rectangular prism has a length of 312 inches, a width of 312 inches, and a height of 7 inches. Danny has a storage container for the prism that has a volume of 90 cubic inches.



What is the difference in volume between the prism and the storage container?

Answers

The answer is 4.25 :)

Answer:

The answer is 429 meters

Step-by-step explanation:

I took the test and got it correct

Help please!!! Brainliest immediately!

Kylie and her family need to buy a new refrigerator. The space available for the refrigerator measures 37 in wide, 72 in high, and 24 in deep.
Which size refrigerator would be the BEST fit for the available space?

Answers

Answer:

B

Step-by-step explanation:

what is four times the sum of twelve and a number in algebraic expression ​

Answers

(12 + x) X 4.
EXPLANATION
Replace twelve with 12.
Replace the sum with a +
Replace a number with a variable
replace four times with X 4.
Have a gud day

In a certain city, the population mean commute time to work was reported as 30 minutes. The director of human resources for a certain company in the city claimed the mean commute time for the
company's employees was greater than 30 minutes. The director surveyed 35 randomly selected employees and found that their mean commute time was 31.4 minutes. With all conditions for
inference met, a hypothesis test conducted at the significance level a = 0.05 resulted in a p-value of 0.381
Which of the following is an appropriate conclusion?

Answers

Answer:

Answer.The director does not have convincing statistical evidence to conclude that the population mean commute time is greater than 30 minutes.

Because the p value is very high and higher than level of significance ,so we fail to reject null hypothesis.

Which of the following equations is the result after the first step in solving 5x – 4 = 15? A. x – 4 = 3 B. x = 2 C. 5x = 19 D. 5x = 11

Answers

Answer:

C

Step-by-step explanation:

5x-4=15

5x=15+4

5x=19

Clare bought an expensive
for £38 000 and sold it 3 years later
for £25 000. Find the percentage loss
that she made on the sale. (1 dp)

Answers

i don’t know the answer and that’s on god

Which graph represents-5x+4y≥-1?

Answers

Answer:

D!

Step-by-step explanation:

Desmos has a free graphing calculator for future references :)

Can someone please help meee

Answers

Answer:

160

Step-by-step explanation:

Angle ABE is a 180 as ABE forms a line

so angle ABC + ANGLE CBE = 180

x + 20 = 180

x = 180-20

= 160

I hope im right!!

Step-by-step explanation:

answer is 160

hope it helps

what is the slope of (4,7) (9,7)?! please help i tried omni and it didn't give me an answer

Answers

Answer:

0

Step-by-step explanation:


A sum amounted naira 2,590
at 10% Per annum for the
Period of 4 Years. Find the sum

Answers

Answer:

1,769

Step-by-step explanation:

The computation of the sum is shown below:

Future value = Present value × (1 + rate of interest)^number of years

2,590 = Present value × (1 + 0.10)^4

2,590 = Present value × 1.10^4

So, the present value is

= 2,590 ÷ 1.10^4

= 2,590 ÷ 1.4641

= 1,769

5(n+1)-15=0, what is the answer to this equation? i need step by step explanation​

Answers

Answer:

5n+5-15=0

5n-10=0

5n=10

therefore n = 10/5 = 2

therefore n=2

Can someone please help me?

Answers

Answer:

#25 is left, #27 is between, #28 is below, and #26 is first i think.

Step-by-step explanation:

Answer: #25 is left, #27 is between, #28 is below, and #26 is first i think.

Step-by-step explanation:

HELP PLSSSSS I BEG YOUUUUUUUUUUUUUUUUU

Answers

Answer:

just shade in the same thing

just shade in the same thing

I need help on this problem if it's possible can you walk me through how to do it?​

Answers

Answer:

Just subtract the area of two triangles from the area of the rectangle

Step-by-step explanation:

Answer:

149 ft^2

Step-by-step explanation:

First, figure out the whole square area.

Which is 9 1/4 x 20 = 185

One triangle is 6 x 6 x .5 because the formula of a triangle is A=bh1/2.

Triangle=18

There are two triangles so its 36.

185-36 = 149

Is this helpful? Tell me if you need me to further explain.

If a translation maps zl onto ZK, which of the following statements is true? G HS 1 K НІ is twice the measure of 2JK: GH is twice the measure of 2GJ: Triangles AGHI and AGJK are not similar. OCH = J​

Answers

9514 1404 393

Answer:

  (d) ∠H ≅ ∠J

Step-by-step explanation:

We already know that ∠G is congruent to itself. If we show (by translation or other means) that ∠I ≅ ∠K, then we know that ΔGHI ~ ΔGJK. The third angle in each triangle will be congruent, too.

  ∠H ≅ ∠J

_____

The problem is concerned with angles, so the first two answer choices are irrelevant. If two angles are shown congruent, the triangles are congruent by AA similarity, so the third answer choice is incorrect.

Answer: D

Step-by-step explanation:

2) The difference of two numbers is 13. Their sum is 85. Find the numbers.
What’s the answer

Answers

Answer:

49 and 36

Step-by-step explanation:

49 - 36 = 13

49 + 36 = 85

Answer:solving we get y=6  x+y=85

x-y=13

add the equations

2x=98

x=98/2

x=49

85-49=36

the numbers are 49 and 36

Hope this helps have a awesome night/day❤️✨

Step-by-step explanation:

DO THIS FOR BRAINLIEST PLEASE
Joey wants to find out what sport 7th grade girls like the most. He asks "Is basketball your favorite sport?"

This question is biased.


True OR False

Answers

Answer:

True

Step-by-step explanation:

I hope I'm right

Answer:

False

Step-by-step explanation:

No 7th grade girl likes basketball the most unless they're going through their tomboy phase of life.

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