Rebecca is comparing two prices of peanut

Mathematics

1 answer:

stich3 [128]2 years ago

6 0

Answer:

Peanut butter A is the better buy,

Step-by-step explanation:

To compare them directly, we can find the price per ounce for each peanut butter.

Peanut butter A has 12 ounces and costs $6, thus, each ounce is $\frac{6}{12}=\$0.50$

Peanut butter B has 32 ounces and costs $18, thus, each once is $\frac{18}{32}\approx\$0.56$

Therefore, Peanut butter A is the better buy.

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A segment has an endpoint at (1,−2). The midpoint is at (−4,−2). What are the coordinates of the other endpoint?

vodka [1.7K]

Answer:

The other midpoint is located at coordinates (-9,-2) (Second option)

Step-by-step explanation:

Midpoints

If P(a,b) and Q(c,d) are points in $\mathbb{R} ^2$ , the midpoint between them is the point exactly in the center of the line that joins P and Q. Its coordinates are given by

$\displaystyle x_m=\frac{a+c}{2}$

$\displaystyle y_m=\frac{b+d}{2}$

We are given one endpoint at P(1,-2) and the midpoint at M(-4,-2). The other endpoint must be at an equal distance from the midpoint as it is from P. We can see both given points have the same value of y=-2. This simplifies the calculations because we only need to deal with the x-coordinate.

The x-distance from P to M is 1-(-4)=5 units. This means the other endpoint must be 5 units to the left of M:

x (other endpoint)= - 4 - 5 = - 9

So the other midpoint is located at (-9,-2) (Second option)

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2 years ago

How many 10s are in 105

solmaris [256]

Answer:

there are 10 tens in 105 with a remainder 5

Step-by-step explanation:

10 times 10 equals 100

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