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2 years ago

A coffee blender mixes two types of coffee. Type A costs $13 per kg and type B costs

Mathematics

1 answer:

sammy [17]2 years ago

8 0

Answer and working out attached. Hope this helps

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sari and her friends played miniature golf.there were p people in the group. each person paid 5$ for a round of golf and togethe

andrew-mc [135]

The equation(expression) would be 5p+9

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2 years ago

Write the number 8/25 as a decimal.

Dmitry_Shevchenko [17]

I'm pretty sure the answer is .32

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2 years ago

2 3/4÷2/5 answer choice A is 1 7/8 B is 3 1/8 C is 4 2/5 D is 6 7/8

natta225 [31]

Answer:

D. 6 7/8

Step-by-step explanation:

First, convert 2 3/4 to an improper fraction.

2 times 4 = 8

8+3=11

11/4 ÷2/5

Then, flip the second fraction and change the sign to multiplication.

11/4 × 5/2

Multiply.

11 × 5 = 55

4 × 2 = 6

55/6

Simplify the fraction.

6 7/8

6 0

3 years ago

Stem (hundred thousands) Leaf (ten thousands)

alina1380 [7]

The largest stem is 3, found in the bottom row. This represents 300 thousand or 300,000.

The largest leaf in the bottom row is 7 and that represents

7*(10 thousand) = 70 thousand = 70,000

Adding the stem and leaf values gets us

300,000 + 70,000 = 370,000

<h3>The most expensive home sold was $370,000</h3>

6 0

2 years ago

A rectangle has one side of 8 cm. How fast is the diagonal of the rectangle changing at the instant when the other side is 6 cm

lisov135 [29]

<h2>The diagonal is increasing at 1.8 cm/minute.</h2>

Step-by-step explanation:

Let l be one side,w be other side and s be diagonal.

We have

s² = l² + w²

We have

l = 8 cm

w = 6 cm

s² = l² + w²

s² = 8² + 6²

s² = 100

s = 10 cm

Taking derivative with respect to time in s² = l² + w²

$s^2=l^2+w^2\\\\2s\frac{ds}{dt}=2l\frac{dl}{dt}+2w\frac{dw}{dt}\\\\s\frac{ds}{dt}=l\frac{dl}{dt}+w\frac{dw}{dt}\\\\\frac{dw}{dt}=3cm/min\\\\\frac{dl}{dt}=0cm/min\\\\10\frac{ds}{dt}=8\times 0+6\times 3\\\\\frac{ds}{dt}=1.8cm/min$

The diagonal is increasing at 1.8 cm/minute.

7 0

2 years ago