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3 years ago

The following table shows the cost for 4 fruits. For example, apples cost $6, for 5 pounds.

Mathematics

2 answers:

masya89 [10]3 years ago

8 0

Apple would cost $1.20per pound because 6÷5=1.20

zavuch27 [327]3 years ago

5 0

If you divide 6 by 5, you get 1.2

Therefore, apples cost 1.20 per pound.

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How do you find out if a number is an integer or not?

Tanya [424]

Answer:

Integers are any whole number negative or positive

Step-by-step explanation:

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3 years ago

How do I factor y^2-2y-24

rusak2 [61]

$y^2-2y-24=\\\\y^2+4y-6y-24=\\\\y(y+4)-6(y+4)=\\\\(y+4)(y-6)$

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3 years ago

A street light is mounted at the top of a 15-ft-tall pole. A man 6 feet tall walks away from the pole with a speed of 5 ft/s alo

harina [27]

Answer:

25/3 ft/s

Step-by-step explanation:

Height of pole , h=15 ft

Height of man, h'=6 ft

Let BD=x

BE=y

DE=BE-BD=y-x

All right triangles are similar

When two triangles are similar then the ratio of their corresponding sides are equal.

Therefore,

$\frac{AB}{CD}=\frac{BE}{DE}$

$\frac{15}{6}=\frac{y}{y-x}$

$\frac{5}{2}=\frac{y}{y-x}$

$5y-5x=2y$

$5y-2y=5x$

$3y=5x$

$y=\frac{5}{3}x$

Differentiate w.r.t t

$\frac{dy}{dt}=\frac{5}{3}\frac{dx}{dt}$

We have dx/dt=5ft/s

Using the value

$\frac{dy}{dt}=\frac{5}{3}(5)=\frac{25}{3}ft/s$

Hence, the tip of his shadow moving with a speed 25/3 ft/s when he is 45 feet from the pole.

8 0

3 years ago

Read 2 more answers

Sandra and Bernice are starting a nutrition and exercise program that will last 12 weeks. Sandra is starting at 150 pounds and p

Anvisha [2.4K]

Answer:

They will not have the same weight during the program

Step-by-step explanation:

Let x be the number of weeks.

<u>Sandra:</u>

Sandra is starting at 150 pounds and plans to lose 1 pound a week.

Weight after x weeks:

$150-x$

<u>Bernice:</u>

Bernice is starting at 135 pounds and plans to lose 1/2 a pound a week.

Weight after x weeks:

$135-\dfrac{1}{2}x$

Weights must be the same, so

$150-x=135-\dfrac{1}{2}x\\ \\\dfrac{1}{2}x-x=135-150\\ \\-\dfrac{1}{2}x=-15\\ \\x=30$

Since 30 weeks is more that 12 weeks (the duration of the program), they will not have the same weight during this program.

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3 years ago

What is 9/21 in simplest form

mote1985 [20]

The answer is 3/7

9÷3=3
21÷3=7

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4 years ago

Read 2 more answers