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3 years ago

Please Please please please help help help help!!!!!!!!!!!!!!!!!!!

2 answers:

4 0

So you would write out the equation 3(30/25) x 4(12+15) and then do 30/25= 1.2 then do 1.2*3= 3.6 save that answer for later then do 12+15=27 then do 27*4= 108 then multiply together the 108* 3.6= 388.8

Studentka2010 [4]3 years ago

3 0

Answer:

Step-by-step explanation:

30 30 x 3 = 90

x 3

first multiply 4 x 5 = 20 bring down 0 then multiply 4 x 2 = 8 then add+2= 10

25 x 4 = 100

12 x 15 = 180

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Point A is located at -0.75 and point B is located at on a number line.

scoundrel [369]

Point c would be Positive 0.75 because it’s the opposite of -0.5 because they are the same distance from b

8 0

3 years ago

A scientist working with 0.9 M of gold wire how long is the wire in millimeters?

Fantom [35]

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8 0

4 years ago

Write 3.1415×106 in standard notation

Zina [86]

Answer:

332.999

Step-by-step explanation:

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3 years ago

Luis Nunez begins walking at a rate of 8 mph. Forty-five minutes after he leaves, his wife, Kristin, realizes that Luis has fo

Aleksandr [31]

Answer:

a). 18 minutes

b). 8.4 miles

Step-by-step explanation:

a). Let Luis meet Kristina after the time = h hours

So the distance traveled by Luis in h hours = Speed × time

= 8×h

= 8h miles

If Kristin started after 45 minutes of $\frac{45}{60}$ hours then the distance traveled by her

= Speed × time

= $28\times (h-\frac{45}{60})$ miles

Since after h hours distances traveled by Luis and Kristin are same so,

$28(h-\frac{45}{60})=8h$

28h - 8h = $\frac{28\times 45}{60}$

20h = 21

h = 1.05 hours

So the time taken by Kristin = (h - 0.75)

= 1.05 - 0.75

= 0.30 hours ≈ 18 minutes

b). Distance traveled by Luis before Kristin catches Luis = 8×1.05

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5 0

4 years ago

Someone help me with this.

Mandarinka [93]

Answer:

2x² + 13x + 15

Step-by-step explanation:

| 2x | 3

x | 2x*x = 2x² | 3*x = 3x

5 | 2x*5 = 10x | 3*5 = 15

We have, 2x² + 3x + 10x + 15

Combining like terms, we would have the final expression as:

2x² + 13x + 15

3 0

3 years ago