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zloy xaker [14]
3 years ago
11

1.

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
4 0

Answer:

Step-by-step explanation:

- An airplane leaves Los Angeles for Denver at a speed of 430 mph. Thirty minutes later another plane going from Denver to Los Angeles leaves Denver, which ... So to begin with plane 1 got a 30 minute head start, so since it was going at 430 miles per ... LOS ANGELES - DENVER...430 miles/hour, x hours.

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Combine like terms to create an equivalent expression. Enter any coefficients as simplified proper or improper fractions or inte
Sonja [21]

Answer:

  1 -9/7n

Step-by-step explanation:

  \dfrac{1}{7}-3\left(\dfrac{3}{7}n-\dfrac{2}{7}\right)=\dfrac{1}{7}-\dfrac{3\cdot3}{7}n+\dfrac{3\cdot2}{7}=\dfrac{1}{7}+\dfrac{6}{7}-\dfrac{9}{7}n\\\\=\dfrac{1+6}{7}-\dfrac{9}{7}n=\boxed{1-\dfrac{9}{7}n}

5 0
2 years ago
Read 2 more answers
Need help & Thank you !!!!
loris [4]

The right answer is of option D.

please see the attached picture for full solution...

Hope it helps...

Good luck on your assignment......

8 0
4 years ago
Identify the value of x that makes each pair of ratios equivalent.
aleksley [76]

Answer:

c.1

Step-by-step explanation:

5: 15   x:3

a:b   c:d   The ratios have to stay in proportion.  So if we multiply a and b by a certain number  they will equal c and d.  We just don't know what that number is yet.  Call it something.

a* something = c   and b* something =d

5 * something = x

15* something = 3

Solve for the unknown number we are multiplying by

Divide each side by 15

15/15 * something =3/15

something = 1/5

Now that we know what we are multiplying by, we can solve for x

So  5 * something = x

     5* 1/5 = x

            1 =x

7 0
3 years ago
A 200-seat movie theater charges $3.00 for adults and $1.50 for children. If all seats were filled and total ticket income was $
I am Lyosha [343]

Answer:

ask your math teacher i rember learning this but froget ow

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
While making oatmeal cookies, Angela needs to add cup of milk to her dough. However, she has only a -cup measuring cup. How many
Mrrafil [7]

Answer:

the number of times Angela needs to fill the 1/4-cup measuring cup to pour 1/2 cup of milk is 2.

Complete question:

While making oatmeal cookies, Angela needs to add 1/2 cup of milk to her dough. However, she has only a 1/4-cup measuring cup. How many times does she need to fill the measuring cup to pour 1/2 cup of milk? The number of times Angela needs to fill the 1/4-cup measuring cup to pour 1/2 cup of milk is?

Step-by-step explanation:

Number of cups Angela needs to add to her dough = 1/2 cup of milk

The only measuring cup she has = 1/4-cup measuring cup.

To determine the number of times she needs to fill the measuring cup to pour 1/2 cup of milk, we would divide the 1/2 cup of milk by 1/4-cup measuring cup

= ½ ÷ ¼

= ½ × 4/1

= 4/2

= 2

Angela would need to fill 2 times

Therefore, the number of times Angela needs to fill the 1/4-cup measuring cup to pour 1/2 cup of milk is 2

4 0
3 years ago
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