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Karolina [17]
3 years ago
11

PLEASE HELP THANKS!!

Mathematics
2 answers:
mafiozo [28]3 years ago
6 0

Answer: a) x = 5   b) x = 12

Step-by-step explanation: For each one you just do the inverse to get it on the other side of the equal sign. For example x + 3 = 8 would be like this :

1. x + 3 = 8

2. x + 3 - 3 = 8 -3

    ( + 3 - 3 cancels out)

3. x = 5

       

zzz [600]3 years ago
5 0

a. x + 3 = 8

x = 8 - 3

x = 5

b. x - 5 = 7

x = 7 + 5

x = 12

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Evaluate f(x) = sqrt(5x + 4) for x = 12
Nezavi [6.7K]

Answer is 8

Work Shown:

f(x) = sqrt(5*x + 4)

f(12) = sqrt(5*12 + 4) ... replace every x with 12

f(12) = sqrt(60 + 4)

f(12) = sqrt( 64 )

f(12) = 8

8 0
3 years ago
Select all of the following expressions that are equivalent to 0.25.
lora16 [44]

1. (0.5)2=1

2. (-0.2) + (-0.05) = -0.25

3. |-3 + 2.75| = 0.25

4. -(-0.25) = 0.25

5. 2x - 1.75x = 0.25x


So your answers are 3 and 4.


6 0
3 years ago
Fuimos al Circo "Hermanos Poncho y Carlos", y tuvimos que pagar en total $350 por mis dos hermanos, mis padres y yo. Mi mamá pag
nalin [4]

Answer:

$160

Step-by-step explanation:

El monto total a pagar es de $350

\dfrac{1}{7} es pagado por mamá

\dfrac{2}{5} es pagado por el hermano mayor

La porción pagada por papá es

1-(\dfrac{1}{7}+\dfrac{2}{5})=1-(\dfrac{5+14}{35})\\ =1-\dfrac{19}{35}\\ =\dfrac{35-19}{35}\\ =\dfrac{16}{35}

Esta cantidad pagada por papá es

350\times\dfrac{16}{35}\\ =10\times 16\\ =\$160

Esta cantidad pagada por papá es $160.

3 0
3 years ago
One box holds 16 crayons. Another box hold 24 crayons. Write a sentence using words that compares the crayons in the two boxes
Triss [41]
24 is greater than 16. Or in mathematical terms 24 > 16
7 0
3 years ago
Read 2 more answers
Evaluate the function f(x)=2x-2, when x=-1
sertanlavr [38]
Substitute -1 for the variable x.

f(-1) = 2(-1) - 2
f(-1) = -2 - 2
f(-1) = -4
4 0
3 years ago
Read 2 more answers
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