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Yuliya22 [10]
4 years ago
5

Algebraic equations

+ 20 = 100" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Setler [38]4 years ago
4 0

Answer:

x = 80

Step-by-step explanation:

The whole reason algebra exists is to solve for a variable. Therefore, the only way to get x by itself or to see what x equals is to subtract 20 from both sides. Doing this will make x be all alone on one side of the equation and to see what x is.

x + 20 = 100

x + 20 -20 = 100 -20

x = 80

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Hey could I please get some help with my math?:)
Mazyrski [523]

Answer:

the answer is  20,21,29 because  

20 times 20 is 400

21 times 21 is 441

and 29 times 29 is 841

the formula to ge tthe answer is a^2 + b^2 = c^2

20^2 + 21^2= 29^2

then plug the rest in

400+441= 841

Step-by-step explanation:

can i get crown now?

4 0
3 years ago
104 is the product of craig’s savings and 8
ziro4ka [17]

Let Craig's Saving =$ x

104 is the product of Craig’s savings and 8

      A.T.Q

Writing the statement in Expression form

⇒104=8\times x

⇒x =\frac{104}{8}

x=13

So, Craig saving=$ 13

Amount saved by Craig=$13

8 0
3 years ago
Given isosceles trapezoid TRHY, in units what is the length of b2 if the height is 13 units, b1 is 21 units, and the area is 215
GenaCL600 [577]

We are given a trapezoid TRHY.

Height of the trapezoid = 13 units.

b1 = 21 units and

Area = 215 units squares.

We need to find the length of b2.

We know formula for area of a trapezoid.

A= \frac{1}{2} (b1+b2)\times h

Plugging values in formula.

215 = \frac{1}{2}(21+b2)× 13.

215 = 6.5(21+b2)

Dividing both sides by 6.5, we get

\frac{215}{6.5}=\frac{6.5(21+b2)}{6.5}

33.08 = 21+b2.

Subtracting 21 from both sides, we get

33.08-21 = 21-21+b2

b2 = 12.08.

<h3>Therefore,  length of b2 is 12.08 units.</h3>
4 0
3 years ago
What statement complete the proof below given 3x+ 7=x-5
Advocard [28]

Proof: x=-6

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4 0
3 years ago
Read 2 more answers
When 5 is subtracted from the square of a number, the result is 4 times the number. Find the negative solution.
wariber [46]

Answer:

-1

Step-by-step explanation:

You can write it as...

x^{2} -5=4x

Carry the 4x

x^{2} -4x-5=0

Then use the quadratic formula to solve, since you want to find the negative solution, you don't need to find the positive solution, so we will have

(4-\sqrt{16+20}) /2=\frac{4-6}{2}=\frac{-2}{2} =-1

Therefore our answer is -1

8 0
3 years ago
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