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Yuki888 [10]
2 years ago
9

Please help me, LETTER B

Mathematics
1 answer:
allsm [11]2 years ago
6 0

Step-by-step explanation:

let's bring everything to prices per full pound, and then we can compare the prices directly.

ham $3.50 for 1/2 pound

2×3.5 = $7 for 2×1/2 = 1 pound

turkey $2.25 for 1/4 pound

4×2.25 = $10 for 4×1/4 = 1 pound

salami $1.75 for 1/5 pound

5×1.75 = $8.75 for 5×1/5 = 1 pound

American cheese $1.70 for 1/8 pound

8×1.7 = $13.60 for 8×1/8 = 1 pound

Swiss cheese $1.25 for 1/10 pound

10×1.25 = $12.50 for 10×1/10 = 1 pound

so, we see the cheapest meat is ham, and the cheapest cheese is Swiss cheese.

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If X = 6 cm and Y = 8 cm, what is the length of Z?
AleksAgata [21]
Use the trick x+ y+ z =0 and 6+8+z=0,...so z= -14
3 0
3 years ago
For the data in the table, write an equation for the direct variation.
melisa1 [442]

The equation of direct variation is,

\begin{gathered} y=kx \\ k=\frac{y}{x} \end{gathered}

Substitute the values of <em>y</em> and <em>x</em>.

\begin{gathered} k=\frac{5.4}{4} \\ k=1.35 \end{gathered}

So, the obtained equation will be <em>y</em>=1.35(x).

Let's check with the values of <em>x</em>.

1) If <em>x</em>=4

\begin{gathered} y=1.35x \\ y=1.35(4) \\ y=5.4 \end{gathered}

2) If <em>x</em>=2

\begin{gathered} y=1.35x \\ y=1.35(2) \\ y=2.7 \end{gathered}

3) If <em>x</em>=-2

4 0
1 year ago
How many solutions are there to
Alika [10]

Answer:

C

Step-by-step explanation:

there are infinitely many solutions since different values of x and y will work for this simultaneous equation

8 0
3 years ago
Cameron has $200. He wants to buy a diploma frame for $44. He also wants to buy kente graduation stoles for himself and his frie
miskamm [114]

Answer:

6

Step-by-step explanation:

200-44=156

156/2=6.5

Round 6.5 to 6.

8 0
3 years ago
Solve the system by substitution.<br> -8x – 7y = -5<br> -x = y
Lapatulllka [165]

Substitute y = -x into the first equation:

-8x - 7(-x) = -5

-8x + 7x = -5

-x = -5

x = 5

Substitute x = 5 into y = -x

y = -(5)

y = -5

Answer: x = 5, y = -5

6 0
3 years ago
Read 2 more answers
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