3 years ago

7. Solve for x.V

t{?} " align="absmiddle" class="latex-formula">
x+ 3 = 20

Mathematics

1 answer:

ch4aika [34]3 years ago

6 0

7+3=20

X+3=20
-3 -3
+3 & -3 cancel out
Then 20 minus 3 equals 7
So x=7

You might be interested in

A suitcase measures 24 inches long and the diagonal is 30 inches long. How much material is needed to cover one side of the suit

azamat

Answer:

I believe you're supposed to solve for the other missing side. If you know a side (a) and the diagonal or also known as the hypotenuse (c), you will be able to solve for the other side using the Pythagorean theorem.

Step-by-step explanation:

a^2+b^2=c^2 Substitute the values for a and c

24^2+b^2=30^2 Solve for the powers

576+b^2=900 Subtract 576 from both sides

b^2=324 Solve for the root of 324

18=b

You would need 18 inches of material to cover one side of the suitcase.

8 0

3 years ago

In a certain clothing store, 4 shirts and 6 ties cost $70, and 2 shirts and 4 ties cost $42. What is the cost of each tie?

Oksanka [162]

Answer:

Step-by-step explanation:

Your two equations are ...

4s +6t = 70
2s +4t = 42

Double the second equation and subtract the first:

2(2s +4t) -(4s +6t) = 2(42) -(70)

2t = 14 . . . . . simplify

t = 7 . . . . . . . divide by 2

The cost of each tie is $7.

3 0

3 years ago

There were some gumballs in a bag. Mrs. Roxas

Mekhanik [1.2K]

Step-by-step explanation:

$6 \times \frac{3}{2} \times \frac{4}{1} = 36$

7 0

2 years ago

Which line is the graph of y = x?

satela [25.4K]

B in has the intersection with quadrant 1 and 3

5 0

3 years ago

If you have a mass of 55g that has a volume of 11 ml, what is the density?

Hitman42 [59]

Answer:

D=5g/ml

Step-by-step explanation:

D=M/V

D=55/11

5 0

3 years ago