Question

Anyone know the answer to these?

Answer 1

Answer:

3) 4x=15

6)b=$2.5

1) n= -12

Step-by-step explanation:

3. Given the equation $\frac{1}{2}(4+8x)=17$,

#Expand by removing the brackets:

$2+4x=17$

#We then group the like terms to solve for x:

2+4x=17

4x=15

Hence, the equations equivalent is 4x=15

6. Let b be the cost of each bag of snack.

-Given that there are 4 friends who spent a total of $34 and each ticket costed $6.

-We equate the costs to the total to solve for b:

$C_T=C_t+C_b\\\\34=4\times 6+C_b\\\\C_b=4b\\\\\therefore 4b=10\\\\b=2.5$

Hence, the cost of each bag of snack is $2.5

1) Given the equation $-\frac{2}{3}n+7=15$

#First. we multiply each term by 3 to remove the fraction:

$3\times-\frac{2}{3}n+3\times7=15\times3\\\\-2n+21=45$

#We then group like terms together to solve for n:

$-2n=45-21\\\\-2n=24$

#Divide all terms by -2 to get the value of n:

$\frac{1}{-2}\times -2n=\frac{1}{-2}\times24\\\\n=-12$

Hence n= -12