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2 years ago

(DESPERATE PLEASE HURRY) question down below please show the work

Mathematics

1 answer:

Vlad1618 [11]2 years ago

6 0

Answer:

This is my second time answering one of your questions, chill out, just learn.

-46

Step-by-step explanation:

-46+17=-29

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A baby weighed 7.25 pounds at birth. At the end of 8 months, the baby weighed 212

Vinil7 [7]

Answer:

1537pounds

Step-by-step explanation:

Given parameters:

Weight of baby at birth = 7.25 pounds

Unknown:

Weight at the end of 8months = ?

Solution:

From the second sentence;

Weight at the end of the eighth month = 212 x weight at birth.

Input the parameters and solve;

Weight at the end of eighth month = 212 x 7.25 = 1537pounds

7 0

3 years ago

Solve for x 5 x − 9 = 3 x + 3

Musya8 [376]

5x-9 = 3x+3

2x-9 = 3

2x = 12

x= 6

plz mark branliest, hopoe this helps :)

7 0

3 years ago

Jenna can clean the gutters at her house in four hours. Her older brother, John, can clean the gutters in three hours, if they w

OlgaM077 [116]

Answer:

1 hour and 42.8 minutes

Step-by-step explanation:

To answer this question let's call $t_1$ while it takes Jenna to clean the gutters

Let's call $t_2$ while it takes John to clean the gutters

$t_1 = 4$ h

$t_2 = 3$ h

t = total time

g = job = 1 (clean the gutters)

The speed of each one is:

$V_1 = \frac{1}{4}$ g/ h

$V_2 = \frac{1}{3}$ g/h

$V = V_1 + V_2 = \frac{g}{t} = \frac{1}{t}$

So:

$V = V_1 + V_2 = \frac{1}{4} +\frac{1}{3}$

$\frac{1}{t} = \frac{1}{4} + \frac{1}{3}= \frac{7}{12} g/h$

$t = \frac{12}{7}$ h

Then, both together paint $\frac{7}{12}$ of gutters for each hour.

This means that it takes $\frac{12}{7}$ hours to clean the gutters together

Finally cleaning together takes 1,714 hours or also

1 hour and 42.8 minutes

7 0

3 years ago

Which expression is equivalent to x6 – 9?

Lorico [155]

Answer:

$(x^{3})^{2} -3^{2}$

Step-by-step explanation:

we have

$x^{6}-9$

we know that

$x^{6}-9=(x^{3})^{2} -3^{2}$

Applying difference of square

$(x^{3})^{2} -3^{2}=(x^{3}+3)(x^{3}-3)$

7 0

3 years ago

Read 2 more answers

Find the unit price ( in dollars per ounce )

Serhud [2]

Is this a multiple choice

4 0

3 years ago