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3 years ago

Help me I need at least a B in 7th grade math

Mathematics

1 answer:

Leya [2.2K]3 years ago

8 0

For part a, yes because each student is paying the same amount

For part c, each student is paying $15 to go

For part d, it's $1800

For part e, it would be 95 students

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2x + y = -3<br> 5x - y = -4

Georgia [21]

What do u need help on?

5 0

4 years ago

Combine the like terms to create an equivalent expression:<br> -2x-x+8

lara31 [8.8K]

Answer:

-3x+8

Step-by-step explanation:

-2x-x+8=

-3x+8

7 0

3 years ago

A rectangular garden is extended 4% on the long sides and 8% on the short sides. To the nearest hundredth of a percent, by what

liq [111]

Answer: 12.32%

Step-by-step explanation:

1. $x$ is the original long side and $y$ is the original short side.

2. The area of the original rectangle is $xy$ .

3. The rectangle is extended 4% on the long sides and 8% on the short sides. therefore, the new long side is:

$\frac{104}{100}x=\frac{26}{25}x$

4. And the new short side is:

$\frac{108}{100}y=\frac{27}{25}y$

5. The new area is:

$(\frac{26}{25}x)(\frac{27}{25}y)=\frac{702}{625}xy$

6. The percentage of increase is calculated by substracting the new area and the original area:

$\frac{702}{625}xy-xy=0.1232xy$

7. The result is:

(0.1232)(100)=12.32%

3 0

3 years ago

How to find the diameter of a circle with the area of 1134.1?

Alex17521 [72]

Radius is half of the diameter.
So because the area of a circle is A= pi • r^2, to find the radius first, we have to change the equation to solve for r. Now it is, r= square root of A/pi. We plug in 1134.1. (Look at pic)
The diameter is 38

6 0

4 years ago

One computer printer can print a company's weekly payroll checks in 60 min. A second

Fed [463]

35 mins is the answer.

1/2 +1/3 = 5/6 = 30mins

1/6 remaining is distributed over 5 mins

30/6 =5

30+5 = 35mins

3 0

3 years ago