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3 years ago

Help Please answer both thanks

Mathematics

1 answer:

Ronch [10]3 years ago

3 0

Answer:

question n.3 is a

Step-by-step explanation:

y=3x/2 + 4

2y= 2·3x/2 + 2·4

2y= 3x+8

2y-3x=8

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An electric bulb is sold in a box measuring 5 cm by 4 cm by 4 cm. If the shopkeeper receives them in a carton measuring 50 cm by

katen-ka-za [31]

Answer:

250

Step-by-step explanation:

Bulb box and carton both are of cuboidal shape.

For bulb box the dimensions are:

l = 5 cm, w = 4 cm, h = 4 cm

$V_{Bulb\: box} =lwh$

$\implies V_{Bulb\: box} =5(4)(4)$

$\implies V_{Bulb\: box} =80\: cm^3$

For Carton the dimensions are:

l = 50 cm, w = 20 cm, h = 20 cm

$V_{Carton} =lwh$

$\implies V_{Carton} =50(20)(20)$

$\implies V_{Bulb\: box} =20,000\: cm^3$

To find the number of bulbs packed in the carton, divide the $V_{Carton}$ by $V_{Bulb\: box}$

$Number \:of \:bulbs =\frac{V_{Carton}}{V_{Bulb\: box}}$

$\implies Number \:of \:bulbs =\frac{20,000}{80}$

$\implies Number \:of \:bulbs = 250$

So, 250 bulbs will be packed in one carton.

3 0

2 years ago

I’m thinking the answer should be B right ??

laiz [17]

Hello!

The formula for the volume of a sphere is $\frac{4}{3} \pi r$ ³.

Let's plug in our radius.

$\frac{4}{3} \pi (1,000)$

As we are not looking for an exact answer,we can look for an answer in terms of pi. Maybe we could multiply our fraction by 1,000.

$\frac{4000}{3} \pi$

Therefore, our answer is D.

I hope this helps!

7 0

3 years ago

Ian bought a package of gummy bears that contains 4 cups. if he eats 2/3 cup everyday, how many days of candy does he have?

BartSMP [9]

Answer:

6 days

Step-by-step explanation

2/3 cups x 3 days = 2 cups

2 cups x 2 cups = 4 cups

4 cups = 6 days

5 0

4 years ago

Read 2 more answers

Graph the line that passes through the points (2, -3)(2,−3) and (4, -3)(4,−3) and determine the equation of the line.

liraira [26]

Answer:

Step-by-step explanation:

7 0

3 years ago

If f(x)=2x+7 and g(x)=11x-4, find (f+g)x.

klemol [59]

Answer:

(f+g)(x) = 13x + 3

Step-by-step explanation:

Rewrite f(x)=2x+7 and g(x)=11x-4 in columns, as follows:

f(x)=2x+7

+g(x)=11x-4

----------------

Now add each column separately.

f(x)+g(x) = (f+g)(x) ("the sum of functions f and g")

2x + 11x = 13x, and, finally, 7-4 = 3.

Therefore,

f(x)=2x+7

+g(x)=11x-4

----------------

(f+g)(x) = 13x + 3

7 0

3 years ago