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2 years ago

Marcia used 1 1 3 yards of fabric to make 2 3 of a costume. How many yards of fabric will she need to make five costumes?

1 answer:

4 0

If she uses 113 yards to make 2/3 then divide 113 to make 1/3 which would be 56.5 if you calculate correctly you would need 15 1/3s which means if you multiply 56.5 by 15 you should have 847.5 yards needed I hope I did that correctly

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If A is directly proportional to C and B is directly proportional to C, prove that each of the following is directly proportiona

Yuliya22 [10]

Answer:

A+B is correct answer I hope it helps you

7 0

2 years ago

Thanks to who ever helped me with this question!

ollegr [7]

Answer:

-9

Step-by-step explanation:

Since the opposite angles of both sides are congruent we know that the sides must be congruent also. Therefore, to solve for x we can set them equal to each other.

So the equation will be x+19=10, to solve we must isolate the variable.

First, subtract 19 from both sides

x+19-19=10-19

Then, simplify

x=-9

3 0

2 years ago

Read 2 more answers

Visitors to a carnival can buy an unlimited-ride pass for 50$ or an entrance-only pass for 20$. In one day, 282 passss were sold

olchik [2.2K]

20*282= 5640
10680-5640=5040
50-20=30
5040 dividend by 30= 168
Answer: 168

6 0

2 years ago

The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to det

Maru [420]

Answer:

0.077994

Step-by-step explanation:

Given that the owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club.

$H_0: Mean = 30\\H_a: Mean >30$

(Right tailed test)

Sample size = $n=250$

Sample mean = 30.45

Mean difference = $30.45-30=0.45\\$

Sample std dev s = 5

Sample std error = $\frac{5}{\sqrt{n} } =\frac{5}{\sqrt{250} } \\=0.3163$

Test statistic = Mean diff/std error = $=\frac{0.45}{0.3163} =1.423$

Since population std deviation is not know we use t test

p value = $0.077994$

4 0

2 years ago

What is the coefficient of x2 in the expansion of (x + 2)3?

wolverine [178]

One way is that you can just factor it out: (x+2)(x+2)(x+2)
For the first pair, you get $x^2+4x+4$ .
Then do $(x^2+4x+4)$ * $(x+2)$
That will be $x^3+6x^2+12x+8$
So the answer is 6

4 0

2 years ago