FOR THE LOVE OF GIMBALOOSHI!!! SOMEONE PLEASE HELP ASAP!! Explain how you found the answers!

Mathematics

1 answer:

artcher [175]3 years ago

6 0

(a)
So here's the information we know:
Tanya bought 3 items
Tony bought 4 items
Tony's items were all 2.50 less than Tanya's

So, our equation should look like this:
3x = 4(x - 2.25)

(b)
3x = 4(x - 2.25)
3x = 4x - 9
-x = -9
x = 9

Tanya spent = 9 (x)
Tony spent = 6.75 (x - 2.25)

(c)
3(9) = 4((9) - 2.25)
27 = 36 - 9
27 = 27

or

Tanya: 3x = 3 (9) = 27
Tony: 4( x - 2.25) = 4(9-2.25) = 4(6.75) = 27

(d)
We can conclude that Tanya bought 3 items with a cost of $9 each, and Tony bought 4 items with a cost of $6.75 each. Both Tanya and Tony spent a total of $27.

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Can someone help me with this please :)))

Inessa [10]

Answer : 58 square units.

Tip : break the shape down into shapes you can easily find the area of.

I found the area of the two squares on the bottom
They are identical and are both 2 units tall and two units long giving, giving an area of 4, and since there are two of them you can multiply the are by two giving you 8
Next found the area of the remaining shape which is just a rectangle that excludes the two bottom squares which is 10 units long and 5 units tall multiplying to 50
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7 0

2 years ago

Read 2 more answers

Y is directly proportional to x,and y=216 when x=2. Find y when x=7.

makkiz [27]

$\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\textit{we also know that }
\begin{cases}
y=216\\
x=2
\end{cases}\implies 216=k2\implies \cfrac{216}{2}=k
\\\\\\
108=k\qquad therefore\qquad \boxed{y=108x}
\\\\\\
\textit{when x = 7, what is \underline{y}?}\qquad y=108(7)$