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Angelina_Jolie [31]
2 years ago
12

You want to surround the perimeter of a garden with 35 stones. You need to place a certain number of large and small stones, and

for every large stone, you want to use 4 small stones. Choose the correct equation to find the number of stones for each size. Then solve the equation.
A. x + 4x = 35; 7 large stones and 28 small stones
B. x + 5x = 35; 7 large stones and 28 small stones
C. x + 4 = 35; 4 large stones and 31 small stones
D. 4x = 35 + x; 12 large stones and 23 small stones
Mathematics
1 answer:
coldgirl [10]2 years ago
5 0

Answer:

You will need 7 large and 28 small stones.

Step-by-step explanation:

x = the number of large stones

y = the number of small stones

x + y = 35

for every large stone, you want to use 4 small stones:

y = 4x

by solving the system of equations:

x + y = 35

y = 4x

we find:

x = 7 large stones

y = 28 small stones

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Elaine is in London for one day only. She only has time to see two shows of the three shows she likes. The shows are Hamilton, A
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Answer:

\frac 13

Step-by-step explanation:

All three shows she likes are Hamilton, Aladdin, and Thriller.

But she can watch only two shows among the three shown.

The possible combination of the shows she can watch are

(Hamilton and Aladdin), (Aladdin and Thriller) and (Hamilton and Thriller).

So, the total number of possible events (available options)= 3.

As we have to determine the probability of watching Aladdin and Thriller, so here Aladdin and Thriller is the favorable event.

So, the number of favorable event=1

Now,

\text{Probability}=\frac{\text{Total number of possible events}}{\text{Total number of favorable events}}

=\frac{1}{3}

Hence, the probability that she sees Aladdin and Thriller is \frac 1 3.

5 0
2 years ago
2.14x - 42.9 for x = 22.4 ?<br> A. -18.36<br> B. 5.026<br> C. 47.939<br> D. 90.839
Fynjy0 [20]

Answer:

Step-by-step explanation:

Your answer would be B., because you would multiply

2.14 x  22.4   =

47.939  

then you will subtract that by 42.9

47.939 - 42.9 =  

5.026

7 0
2 years ago
A business purchased for $650,000 in 1994 is sold in 1997 for $850,000. What is the annual rate of return for this investment?
Schach [20]
The annual rat of return for this investment would be
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4 0
2 years ago
Suppose that we've decided to test Clara, who works at the Psychic Center, to see if she really has psychic abilities. While tal
mixas84 [53]

Answer:

A) 3.5

B) 1.6202

Step-by-step explanation:

In binomial distribution,

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SD (X) = √(npq)

Where n is number of cards drawn

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q = 1-(1/4) = 3/4

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A) E(x) = np = 14 x 1/4 = 3.5

B) SD (X) = √(npq) = √(14 x 1/4 x 3/4) = √(42/16) = √2.625 = 1.6202

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2 years ago
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Marrrta [24]

Yes, I cannot draw a line because this is online. Sorry

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