All categories

2 years ago

How can you tell if (4,7) is a solution

Mathematics

2 answers:

Diano4ka-milaya [45]2 years ago

6 0

you have to plug it into your equation

Dafna1 [17]2 years ago

6 0

Answer:

In order to check if the x and y value is a solution then you need to plug in your numbers for the x and why value.

Take this as an example with your solution (4,7) let's try 4x-9=y. We want to plug in the values of each variable so the new equation will look like 4(4)-9=(7). Now you want to multiply and get 16-9=7 next subtract and you get 7=7. This would be a solution for the problem.

Now we can try 3x+14=y do the same thing from last example and you'll get 3(4)-14=7 and now multiply to get 12-14=7 now subtract and you'll get -2=7 which is NOT a solution to this equation so it would become -2≠7.

You might be interested in

PLEASE HELP ME WITH THIS THANKS

kotykmax [81]

Answer:

SA = 1244.64 square centimeters

Step-by-step explanation:

From the attached figure

The formula of the surface area of the prism is SA = 2B + PH, where

B is the area of its base
P is the perimeter of its base
H is the distance between its bases

The base of the prism is a regular hexagon with side 8 cm

If you join each vertex of the hexagon with its center you will form 6 congruent triangles with base 8 cm and height 6.93 cm

The area of the hexagon = 6 × area of a triangle

∵ The base of the triangle = 8 cm

∵ Its height = 6.93 cm

- The formula of the area of a triangle is A = $\frac{1}{2}$ × base × height

∴ Area of the triangle = $\frac{1}{2}$ × 8 × 6.93 = 27.72 cm²

- Lets find the area of the hexagon

∴ The area of the hexagon = 6 × 27 .72 = 166.32 cm²

∴ B = 166.32 cm²

The formula of the perimeter of the regular hexagon is P = 6 × s, where s is the length of its side

∵ The side of the hexagon is 8 cm

∴ P = 6 × 8

∴ P = 48 cm

∵ The distance between the two bases is 19 cm

∴ H = 19 cm

Substitute the values of B, P and H in the formula of the surface area above

∵ SA = 2(166.32) + (48)(19)

∴ SA = 332.64 + 912

∴ SA = 1244.64 square centimeters

7 0

2 years ago

How do I solve this problem

Kaylis [27]

Multiply 2 by 10, divide the answer by 5, and add 3 to the final answer

4 0

3 years ago

Read 2 more answers

Last month,Margo bought a tree that grows 2.5cm each day.It was 5cm tall when she bought it and now it 65cm tall. Write a equati

Effectus [21]

Answer:

The equation to determine the number of days Margo has owned the plant is $5+2.5x=65$ .

Step-by-step explanation:

Given:

Actual length of the tree = 5 cm

Current length of the tree = 65 cm

Per day growth Rate of plant = 2.5 cm

Let number of days she owned the plant be 'x'

Now We can say that,

Current length of the tree is equal to sum of Actual length of the tree and Per day growth Rate of plant multiplied by number of days she owned the plant.

Farming the above sentence in equation form we get;

$5+2.5x=65$

Hence the equation to determine the number of days Margo has owned the plant is $5+2.5x=65$ .

4 0

2 years ago

A study of body fat on 250 men collected measurements of 12 body parts as well as the percentage of body fat that the men carrie

MrMuchimi

Answer:

bicep circumference is a measurement of our body part we need to collect all our so we know our body fats.

8 0

3 years ago

7. in a diagram of a landscape plan, the scale is 1 cm = 10 ft. in the diagram, the trees are 3.3 cm apart. How far apart should

Juliette [100K]

33 cm because u know

3 0

2 years ago