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forsale [732]
4 years ago
6

Help word problem math

Mathematics
2 answers:
fenix001 [56]4 years ago
5 0
Let elga's age = x.

3x + x = 104 --- combine like terms
4x = 104 --- divide both sides by 4
x = 26
Elga is 26 years old.
-------------------- check answer
3(26) + 26
78 + 26
104 = 104
umka2103 [35]4 years ago
4 0

the age of this person is dead or 312


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Which expression is equivalent to -8(10x-3)<br> (SHOW WORK)
oksian1 [2.3K]

Answer:

240

Step-by-step explanation:

-8(10×-3)

(10×3)=30

30×-8=240

4 0
3 years ago
Volunteers at Sam's school use some of the student council's savings for a special project. They buy 8 backpacks for $9 each and
Novay_Z [31]


8 x $9 = $72.00

8 x $3 = $24.00

$72.00 + $24.00 = $96.00

savings changed by $96.00

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4 years ago
Caleb bought groceries and paid $1.60 in sales tax. The sales tax rate is 2.590.
slava [35]
Good for Caleb, he better have bought cheese.
6 0
3 years ago
F you have $18 and a 15% markup, what is the retail price?
Serggg [28]
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4 0
3 years ago
Let m = X^2 + 3.
Tpy6a [65]

The Equation in terms of m, m^2+7m+10=0

What is substituting in the equation ?

substituting means changing or replacing the values in the given equation.

Calculation:

Given equation is (x^2+3)^2+7x^2+21=-10

            and m= X^2 + 3.

make the given equation in the form X^2 + 3,

             now,

                     (x^2+3)^2+7x^2+21=-10

                     (x^2+3)^2+7(x^2+3)=-10

             where,

                      X^2 + 3= m

              after putting the value or replacing the values

             we get, m^2+7m=-10

                      m^2+7m+10=0

          the above equation is in the form of "m".

The Equation in terms of m, m^2+7m+10=0

Leran more about substitution here:

brainly.com/question/24094293

#SPJ1

4 0
2 years ago
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