Journal: Explain how you can check your answers on algebraic equations to know that you are right! Example: 2x = 12*

um if someone could help that would be great this one is not a big deal;-;​

Answer:

40

Step-by-step explanation:

10x10=100

100-60=40

Hope this helps! :)

Answer:

10 ft

Step-by-step explanation:

By using the pythagorean theorem, we know that leg1 squared plus leg2 squared is equal to hypotenuse squared.

[tex]6^2+8^2=?^2\\36+64=?^2\\100=?^2\\10=?[/tex]

Answer: 10ft

Step-by-step explanation:

Pythagorean Theorem- In a right triangle, a²+b²=c² where: (image attached)

a=6ft ; b=8ft

6ft²= 36ft ; 8ft²= 64ft

36+64=100ft

√100= 10ft

Answer:

3456/8 = 432

432 miles per hour

Step-by-step explanation:

Answer:

25

Step-by-step explanation:

He needs 18,000 points.

He starts with 100, so subtract the 100 from 18,000 to get how many more points he needs:

18000 - 100 = 17,900 more points.

Divide the points needed by points per word:

17,900 / 50 = 358

He needs at least 358 words.

The inequality would be 50x+100>=18000, where x is the number of words.

Because 358 can be part of the solution, a solid dot on 358 and the line/arrow needs to point to the right for greater than.

Answer:

Step-by-step explanation:

∠ACB and ∠ECD are vertical angles, so ∠ACB = ∠ECD.

∠D = ∠B

∠A = ∠E

△ABC and △EDC are similar because they have the same angles.

Answer: The greatest common factor, or GCF, is the greatest factor that divides two numbers. To find the GCF of two numbers: List the prime factors of each number. Multiply those factors both numbers have in common.

Step-by-step explanation:

Answer: The solution is C. 1/7.

Step-by-step explanation: Just plug 1/7 as x. You will find that the statement is true when you plug in 1/7.

Answer:

7.Always 8.Never

Step-by-step explanation:

7. A linear pair are 2 angles that forms 180 degree angles. Supplementary Angles are angles that form 180 degrees. 180=180 so it is always

8. Vertical angles share a common vertex but like adjacent angles but unlike vertical angles they dont overlap so Vertical angles are non adjacent angles.Also adjacent angles aren't always equal either. So never

Answer:

The question is incorrect. Please rewrite the question.

Answer:

which language is this

Answer:

14 Days

Step-by-step explanation:

Your mom walks 4 miles each day and wants to walk a total of 56 miles.

You have to divide 56 by 4 and you'll get 14 days.

If you would like to check your answer, you can multiply 14 by 4 and you'll get 56 miles!

Answer:

1.21

Step-by-step explanation:

5.26 - 3.64 = 1.62

1.62 ÷ 2 because the difference between 3 and 5 is two, the mass of one apple is 0.81 because 1.62 ÷ 2 = 0.81

so now we know one apple weights 0.81

if we multiply that 0.81 x 3 it will equal 2.43, so now the three apples alone wiegh 2.43...so now we look at the total weight of the whole basket with three apples, which is 3.64,

3.64 - the weigth of the apples (2.43)

3.64 - 2.43 = 1.21

the basket alone wieghts 1.21

Sorry if that was too long just want you to understand it

Answer:

It has side lengths of 3 and 13

Step-by-step explanation:

If it has an area of 39, then let the sides be x and y: thus we get the two relationships:

xy=39

2(x+y)=32

From the second equation, you get x+y=16. Now, rearrange to get y=16-x. You can now plug this into the first equation:

x(16-x)=39 -> 16x-x^2=39 -> x^2-16x+39=0 -> (x-3)(x-13)=0

This implies that x=3, or x=13, which further implies that the side lengths must be 3 and 13.

Answer:

y = x + 12

Step-by-step explanation:

y -16 = 1(x-4)

y -16 = x -4

y =x +12

Answer:

its y = x + 12 I think I hope it helps

Step-by-step explanation:

because

4 + 12= 16

5 + 12 = 17

6 + 12 = 18

7 + 12 = 19

Answer:

The number is [tex]\frac{23}{3}[/tex]

Step-by-step explanation:

I am going to call the number x.

A number that adds with 2/3 subtract will 1/3 will be 8.

As an equation, this is:

[tex]x + \frac{2}{3} - \frac{1}{3} = 8[/tex]

Now we solve the equation to find x. So

[tex]x + \frac{2-1}{3} = 8[/tex]

[tex]x + \frac{1}{3} = 8[/tex]

[tex]x = 8 - \frac{1}{3}[/tex]

[tex]x = \frac{24}{3} - \frac{1}{3}[/tex]

[tex]x = \frac{24-1}{3}[/tex]

[tex]x = \frac{23}{3}[/tex]

The number is [tex]\frac{23}{3}[/tex]

Answer:

(0, -2)

Step-by-step explanation:

Crosses the y-axis = find the y-intercept. Substitute x = 0 (if you draw a graph, you can see that the point where y crosses the y axis is always 0 for x) into the equation, and you get 3(0) - 7y = 14. Calculate, you get y = -2. Rewrite in coordinates form.

Answer:

The ship is traveling at 25 mph

Step-by-step explanation:

12.5/0.5=25

25/1=25

37.5/1.5=25

The speed is constant (25) so the ship is moving at 25 mph

Answer:

Step-by-step explanation:

18 hours : 48 hours = 3:8

Answer:

Do you mean 7 - 2 and 3/7?

If so:

Convert the mixed numbers to improper fractions, then find the LCD and combine.

Exact Form:

32 /7

Decimal Form:

4. 571428

Mixed Number Form:

4  and 4 /7

Step-by-step explanation:

Have a great day!

Answer:

3.7 the answer.........

Answer:

should i do all the questions?

Answer:

Divide the number of ice-cream bars into the number of people. Example: say you have 20 ice cream bars and 10 people you divide 20/10 and get 2 ice cream bars per person

Step-by-step explanation:

Are you also a simp for draco? :3

Answer:

15

Step-by-step explanation:

60% × ? = 9

? =  

9 ÷ (60 ÷ 100) =

       or

(100 × 9) ÷ 60 =

900 ÷ 60 =

15

How do we check the result?

If 60% × 15 = 9 =>

Divide 9 by 15...

... And see if we get as a result: 60%

Step-by-step explanation:

step 1. I assume i is imaginary

step 2. i^2 = -1, i^3 = -i, i^4 = 1, i^5 = I. . . . and so on

step 3. i - 1 - i + 1 + i - 1 - i + 1 + i - 1

step 4. the result is i - 1.