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3 years ago

When visiting friends in a state that has no sales tax, two families went to a fast-food restaurant for

1 answer:

4 0

No, greens are not correct
Cheeseburgers = $2.79
Fries = $1.79

Greens - 5c + 4f = $21.11
Browns - 4c + 3f = $16.53
If each cheeseburger = $2.49 and
each medium fries = $2.87, then
5 x (2.49) + 4 x (2.87) = $23.93
$23.93 is not equal to $21.11

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How many g of sodium chloride are in 500 mL of D5NS?

Elodia [21]

Answer:

NaCl=500m (1L/1000mL) (9.0 grams /L) (1/2)

Mass NaCl = 2.25 grams

Therefore, 500mL of 1/2 Na solution has 2g of NaCl.

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2 years ago

If the gradient of a line,C, is 2/3, what is the gradient of a line which perpendicular to C

Alecsey [184]

Gradient of a line times the gradient of a line that is perpendicular to it is-1
M1M2=-1
2/3 times M2=-1
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The gradient is =-3/2

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3 years ago

What is the total length of all the seeds that the students measured?

mr_godi [17]

Answer:

525cmlong the length of seeds

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3 years ago

A certain ball is dropped from a height of x feet. It always bounces up to 2/3 x feet. Suppose the ball is dropped from 10 feet

galina1969 [7]

Given that if a ball is dropped from x feet, it bounces up to 2/3 x feet.

And the ball is dropped from 10 feet, that is x=10 feet,

So,before the first bounce it travels 10 feet distance.

Between first and second bounce it travels $\frac{2}{3}* 10 + \frac{2}{3} * 10 = 20*(\frac{2}{3})$

Between second and third bounce, it travels $20*(\frac{2}{3})^{2}$

Between third and fourth bounce, it travels $20*(\frac{2}{3}) ^{3}$

Like that between 29th and 30th bounce, it travels $20*(\frac{2}{3} )^{29}$

Hence total distance traveled is

$10+20*(\frac{2}{3} )+20*(\frac{2}{3})^{2} + 20*(\frac{2}{3}) ^{3}+......+20*(\frac{2}{3})^{29}$

= $10+20[(\frac{2}{3}) +(\frac{2}{3}) ^{2} +(\frac{2}{3}) ^{3} +.....+(\frac{2}{3} )^{29} ]$

= $10+20[\frac{\frac{2}{3}*(1-(\frac{2}{3})^{29}) }{1-\frac{2}{3} }]$

= 10+20*2*(1- $(\frac{2}{3}) ^{29}$ )

= 49.9997 feet ≈ 50 feet approximately.

7 0

3 years ago

Read 2 more answers

Anoki bought 360 millimeters of fabric. How many centimeters of fabric does Anoki have? It’s either 360, 36.0,3.60, or 0.360

Stels [109]

Hey!

First, we need to know how many millimeters are in a centimeter.

10 mm = 1 cm

Okay, now we can write an equation.

360 mm ÷ 10

To solve this equation, we simply divide.

360 mm ÷ 10 = 36 cm

So, if Anoki bought 360 millimeters of fabric, that means he has 36.0 centimeters of fabric.

Hope this helps!

- Lindsey Frazier ♥

8 0

3 years ago