Please help this is algebra II

Mathematics

1 answer:

Readme [11.4K]3 years ago

4 0

Answer:

m=5

Step-by-step explanation:

You might be interested in

Janelle has $75. she buys jeans that are discounted 30% and then uses an in-store coupon for $10 off the discounted price. After

Bad White [126]

So, she paid (75-17.34=57.66) for the purchase

Or, the jeans costed 57.66-3.26=54.4 (prize minus sales tax)

But she got a 10 dollars off! so that means that the jeans actually costed 64.4

now, the 64.40 was the prize discounted by 30%:

64.40=(100-30)%*x

where x was the original prize

64.40=0.7x
644=7x
x=644/7
x=92

so the original prize was 92 dollars.

5 0

4 years ago

Please answer this as quick as you can

SIZIF [17.4K]

Answer:

B is correct because there cannot be negative people in a cafeteria.

Step-by-step explanation:

8 0

3 years ago

A farmer wants to fence a rectangular garden next to his house which forms the northern boundary. The fencingfor the southern bo

Ivahew [28]

Answer:

10 ft x 10 ft

Area = 100 ft^2

Step-by-step explanation:

Let 'S' be the length of the southern boundary fence and 'W' the length of the eastern and western sides of the fence.

The total area is given by:

$A=S*W$

The cost function is given by:

$\$ 120 = \$3*2W+\$6*S\\20 = W+S\\W = 20-S$

Replacing that relationship into the Area function and finding its derivate, we can find the value of 'S' for which the area is maximized when the derivate equals zero:

$A=S*(20-S)\\A=20S-S^2\\\frac{dA}{dS} = \frac{d(20S-S^2)}{dS}\\0= 20-2S\\S=10$