MATHEMATICS HIGH SCHOOL

Jim’s allowance is $1.20 per week. Stan’s is 25¢ per day. How long will they have to save, if they save both their allowances together, before they can get a model car set that
costs $23.60?

Answers

Answer 1
Answer: first, find out how much stan gets per week. 

.25 x 7 =1.75

now how much they get together

1.75 + 1.20 = 2.95

and then the final step

23.60 / 2.95 = 8

it'll take 8 weeks for them to buy the model car set

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Simplify the following expression.

Answers

Step-by-step explanation:      

Step 1: Simplify the equation

7.22−4.9(5.1+3.1)

=51.84−4.9(5.1+3.1)

=51.84−(4.9)(8.2)

Step 2: Solve and subtract the numbers

=51.84−40.18

=11.66

Explanation in words:

- To solve this equation, the first step is to simplify the equation and at the end, the answer will result as = 51.84-(4.9)(8.2).

- To solve this equation, the second step is to solve that equation and break it down so we will have to subtract and at the end, the answer for this whole equation will result as = 11.66.

Answer:      

= 11.66

Hope this helps.

(x-4)^2+12(x-4)+20=0

Answers

Answer:

x=2 or x=−6

Step-by-step explanation:

The sides of a square are 3 2/7 inches long. What is the area of the square? A.) 9 4/7 square inches

B.) 3 4/7 square inches

C.) 3 4/49 square inches

D.) 9 4/49 square inches

Answers

If you would like to know what is the area of the square, you can calculate this using the following steps:

the area = 3 2/7 inches * 3 2/7 inches = 23/7 * 23/7 = 529/49 = 

Use the figure below to answer the questions.a. What is the name of the 3D shape?


b. What is the formula for total surface area for this shape?


c. What is the surface area of the figure?

Answers

Answer:

a. What is the name of the 3D shape?

The name of the 3D shape is Prism

b. What is the formula for total surface area for this shape?

Total surface area:

S=2A_(b)+P_(b)h

c. What is the surface area of the figure?

The surface area of the figure is 144 cm²

Step-by-step explanation:

a. What is the name of the 3D shape?

The 3D shape has two congruent and parallel faces (triangles) and the other faces are parallelograms, then the 3D shape is a prism


b. What is the formula for total surface area for this shape?

Total Surface area:

S=2A_(b)+P_(b)h

where:

Area of the base of the prism: Ab

Perimeter of the base: Pb

Height of the prism: h


c. What is the surface area of the figure?

The base of the prism is a triangle. Then to calculate the area of the base, we must use the formula to calculate the area of a triangle:

A_(b)=(bh)/(2)\n A_(b)=((4 cm)(3 cm))/(2)\n A_(b)=(12cm^(2) )/(2)\n A_(b)=6cm^(2)

The perimeter of the base is the perimeter of the triangle, equal to the sum of the sides of the triangle:

P_(b)=4cm+3cm+5cm\n P_(b)=12cm

h: Height of the prism is the distance between the bases of the prism (the triangle), then h=11 cm

Then, replacing in the formula the known values:

S=2(6 cm^(2))+(12 cm)(11 cm)\n S=12 cm^(2)+132 cm^(2)\n S=144 cm^(2)

NEED HELP ,,,,,,, HELP IF U CAN ASAP

Answers

Answer:

$24.84

Step-by-step explanation:

i did the work lol

give brainliest please

The number of stops a bus makes on a certain day is represented by the variable s. Which set of numbers best describes the value of the variable?whole numbersnatural numbersintegersirrational numbers

Answers

whole numbers- whole numbers are the numbers that does not have any fraction or negative numbers. Whole number start with 0. they are 0,1,2,3,4,......

natural numbers- natural numbers are the set of positive numbers. 1,2,3,4....

integers - Integers are similar to whole number but we include negative numbers as well. ........-1,0,1,2,......

irrational numbers- irrational numbers are all real numbers that are not rational. √(2) , \pi....

The number of stops a bus makes on a certain day is represented by the variable s

Number of stops a bus make cannot be a negative number or irrational number.

WE can consider 0 stops as well.

So it belongs to whole number

Whole numbers best describes the value of the variable
If zero bus stops is an option, then it would be whole numbers. If the number of stops is greater than zero, it would be natural numbers.
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