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kifflom [539]
4 years ago
12

Please help.........................

Mathematics
1 answer:
astraxan [27]4 years ago
7 0
<span>The diameter in centimeters (cm) of a human hair is about 0.0025 cm. In terms of scientific notation, it is written as 2.5 x 1</span><span>0^-3 cm</span>
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Ann, Chang, and Kareem sent a total of
Gnoma [55]

It is given in the question that

Ann, Chang, and Kareem sent a total of 89 text messages over their cell phones during the weekend. Ann sent 9 fewer messages than Chang. Kareem sent 3 times as many messages as Ann.

Let number of messages Chang sent be x. And Ann sent 9 fewer than Chang, so Ann sent (x-9) messages. And Kareem sent 3 times as many messages as Ann, so Kareem sent 3(x-9) messages.

And the total messages are 89. That is

x+x-9+3(x-9)=89

Combining like terms

x + x - 9 + 3x-27 =89&#10;\\&#10;5x -36=89&#10;\\&#10;5x = 125&#10;\\&#10;x =25

So Chang sent 25 messages, Ann sent

25-9=16 messages

And Kareem sent

3*16 = 48 messages

8 0
3 years ago
Jasmine is baking and selling cupcakes for $15 per dozen she would like to make more than $120 in cupcake sales which number lin
antoniya [11.8K]

Answer:

 i'll explain it to you

Step-by-step explanation: look for a number line that has 180, 120, and 15 you see you have to multiply 15 by 12 dozen cupcakes which equals to 180  that way she earns more than $120

3 0
3 years ago
How long is the tape for 30 mins
Lerok [7]

Answer:

0.016

Step-by-step explanation:

u divide 0.048 by 30 and the result is the answer

4 0
2 years ago
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The City Sights tour company had the same ratio of tourists to guides on both days this weekend. On Saturday, there were 120 tou
Anastasy [175]

Answer:

There were 6 guides on Sunday.

Step-by-step explanation:

Same ratio

On Saturday, 120 tourists and 18 guides.

On Sunday, 40 tourists and x guides.

Due to the same ratio:

\frac{120}{40} = \frac{18}{x}

3 = \frac{18}{x}

3x = 18

x = \frac{18}{3}

x = 6

There were 6 guides on Sunday.

5 0
3 years ago
Help meeee please!!!!!
ladessa [460]

Answer:

Step 3: Choice D

Step 5: Choice B

Step 6: Choice A

Step 8: Choice C

(I saw in the top left corner of the picture that this is for Algebra II. I am in 8th grade, currently taking geometry, and I haven't taken Algebra II yet, but I <em>did</em> take Algebra I last year. I am 95% sure this is correct but if it isn't, the I sincerely apologize.)

7 0
3 years ago
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