Answer:
90
Step-by-step explanation:
1/5x+4=1/3x-8
add 8 to both sides and subtract 1/5x from both sides
4+8=1/3x-1/5x
12=5/15x-3/15x
12=2/15x
divide both sides by 2/15
12÷2/15=x
when dividing by a fraction, invert and multiply
12*15/2=x
90=x
CHECK:
1/5(90)+4=1/3(90)-8
18+4=30-8
22=22
Answer:i THINK 79, i dont know fully, but i think 79
$59.77. Turn the percent into a decimal by moving the decimal to the left two places (7.5 to 0.075). Then multiply the new decimal by the cost (55.60×0.075=4.17). 4.17 would be the total sales tax, so then add it to the price (55.77+4.17=59.77). Hope that helped.
<span>the customer needs 160 cupcakes and Cheryl already has 16 cupcakes made
</span>so she needs to make 160- 16=144 cupcakes more
if in 1 hour she can make 48
1 hour ------------------------- 48 cupcakes??? hours ---------------------144 cupcakes
cross multiplication 144divided by 48 = 3 hours
<span />
Plug in the point to find out!
Step 1: Fill in the x and y values. x=50 and y=60
3x+2y=270 —> 3(50)+2(60)=270
y=4/5x+20 —> 60=4/5(50)+20
Step 2: solve the filled in equations.
3(50)+2(60)=270 —> 150+120=270
60=4/5(50)+20 —> 60-20=4/5(50)+20-20 —> 40=4/5(50) —> 40=0.8(50) —> 40=40
Answer: It is equivalent because it works for both equations, so it does intersect the pint (50,60).
