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1 year ago

I need help asap please help me

Mathematics

1 answer:

Igoryamba1 year ago

4 0

Answer:

Step-by-step explanation:

I belive what they mean is how many dots thier are i am not complety sure though but just by counting them up i came up with 8.

hope this helped

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Plz help both problems right answer!!

Aneli [31]

3:5=m:60
m= 36
1. B)36

22in30 min
22+22=44
44in 1hr
44x3=132 in 3hr
2. D)132

7 0

3 years ago

The value of y is inversely proportional to the value of x. When y=42, x=6.

NARA [144]

Because $x$ and $y$ are inversely proportional, there is some constant $k$ such that

$xy=k$

Given that $y=42$ and $x=6$ , we have

$k=6\times42=252$

So when $x=9$ , you have

$9y=252\implies y=\dfrac{252}9=28$

4 0

3 years ago

Some airlines have restrictions on the size of items of luggage that passengers are allowed to take with them. Suppose that one

olga_2 [115]

Answer:

Length = Width = Height = 64 ; Luggage Box is a CUBE

Step-by-step explanation:

Given : Length (L) + Width (W) + Height (H) ≤ 192 ; & Length = Width

Volume ( V )of luggage [Cuboid] = L.W.H

Since L = W :

V = L.L.H → V = L^2H

L + L + H = 192 → 2L + H = 192 → H = 192 - 2L

Putting value of 'H' in 'V'

V = L^2 (192 - 2L) → V = 192L^2 - 2L^3

Maximising volume function , differentiating it w.r.t 'L'

dV / dL = 2(192 L) - 3 (2L^2) → = 384L - 6L^2

dV / dL = 384L - 6L^2 = 0

384L = 6L^2 → 384 = 6L

L = 384 / 6 → L = 64 ; W also = 64

Putting value of L in 1st given sum equation : 2L + H = 192

2 (64) + H = 192

128 + H = 192 → H = 192 - 128 → H = 64

Since L = W = H = 64 ; Luggage bag is a Cube

6 0

3 years ago

(1,6) and (9,14) standard form

Talja [164]

Answer:

(14y+6y)+(9x+1x)

Step-by-step explanation:

7 0

3 years ago

Which is the first step needed to solve by substitution?

fredd [130]

$\begin{gathered} -x+y=-1 \\ 2x-y=3 \end{gathered}$

To solve the given system of equations for substitution you:

1. Solve in one of the equations a variable.

For the given options the one that is correct is solve the first equation for y, by adding x to both sides:

$\begin{gathered} -x+x+y=-1+x \\ y=-1+x \end{gathered}$

4 0

2 years ago