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Contact [7]
2 years ago
10

two robbers left a jewelry store at the same time. one robber stole 9 diamonds and 3 gold earrings worth a total of $7500. the s

econd robber stole 5 diamonds and 8 gold earrings worth a total of $6700. what is each diamond worth? what is each earrings worth?
Mathematics
1 answer:
crimeas [40]2 years ago
8 0

Answer: diamond is 700 Earring is 400

Step-by-step explanation:

9D + 3G = 7500

5D + 8G = 6700

G =( 7500 - 9D) /3

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A counter top is 18 feet long and 3 feet wide. What is the area of the counter top in square meters? Use the conversion 1 foot =
podryga [215]

Answer:

Area of the counter top is 5.02\ m^2.

Step-by-step explanation:

Given:

Length of the Counter top = 18 feet

Width of the counter top = 3 feet

We need to find the area of the counter top is square meter;

Solution:

Now we need to find the area of the counter top is square meter.

But given data is in feet so we will first convert feet into meters.

1 foot = 0.305 meter.

So 18 feet = Number of meters in 18 feet.

By Using Unitary method we get;

Number of meters in 18 feet = 18\times 0.305 = 5.49\ m

Length of the Counter top = 5.49 m

Also 3 feet = Number of meters in 3 feet.

Again Using Unitary method we get;

Number of meters in 3 feet = 3\times 0.305 = 0.915\ m

Width of the counter top = 0.915 m

Now we know that;

Area of the counter top can be calculated by multiplying Length of the counter top with width of the counter top.

framing in equation form we get;

Area of the counter top = 5.49\times 0.915 = 5.0233\ m^2

Rounding up to 2 decimals we get;

Area of the counter top =  5.02\ m^2

Hence Area of the counter top is 5.02\ m^2.

3 0
4 years ago
3. According to the U.S. census website (www.census.gov), based on the U.S. population in 2010, the probability that a randomly
Oksi-84 [34.3K]

Answer:

a. 0.017

b. 0.013

c. 0.021

Step-by-step explanation:

Let p be the probability that a randomly selected man is 65 or older

And q be the probability that a randomly selected woman is 65 or older

Then p=0.114 and q=0.146

Using the multiplication rule for independent events:

a. If a man is selected at random and a woman is selected at random, the probability that both people selected are 65 or older is p × q = 0.114 × 0.146 ≈ 0.017

b. If two men are selected at random, the probability that both of them are 65 or older is p × p = 0.114 × 0.114 ≈ 0.013

c. If two women are selected at random, the probability that neither of them is 65 or older is q × q = 0.146 × 0.146 ≈ 0.021

7 0
4 years ago
Help me this math and there's more than this plz
Andrei [34K]
5 3/5 because you multiply the top number by 7
5 0
3 years ago
Read 2 more answers
-7 over 1 3rd written as a fraction is
m_a_m_a [10]

Answer: 22/3 I think

sorry if it’s wrong

7 0
3 years ago
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Х<br> у<br> 20<br> 14<br> 1<br> 3<br> 5<br> 2<br> 5<br> 10<br> Is this relation a function?.
dsp73

Answer:

No it is not a relation function if im correct there are two 5 x values so

Step-by-step explanation:

7 0
3 years ago
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