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mariarad [96]
1 year ago
10

Which ordered pair below is a solution to the following system of equations?

Mathematics
1 answer:
Taya2010 [7]1 year ago
7 0

Answer:

The correct option is OPTION (A) .

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Jan bought 6 cookies and 4 doughnuts for 3.50. Tom bought 12 cookies and 5 doughnuts got 5.23. Write and solve a system of equat
iren2701 [21]
0.19 for one cookie and 0.59 for one doughnut

x for how much one cookie costs and y for how much one doughnut costs
6x+4y=3.5
12x+5y=5.23

solve by substitution: (elimination would work too)
4y=3.5-6x
y=0.875-1.5x
12x+5(0.875-1.5x)=5.23
12x+4.375x-7.5x=5.23
4.5x=0.855
x=0.19
now use x to solve for y:
6(0.19)+4y=3.5
1.14+4y=3.5
2.36=4y
y=0.59

Check the work: 6(0.19)+4(0.59)=3.5
4 0
3 years ago
Estimate the area of each figure. each square represents 1 square foot.
maksim [4K]
I thinks it’s 25ft ^2
8 0
3 years ago
Read 2 more answers
If x+y=10 and x-y=4,find the value of x*x-y*y
Irina18 [472]
Hi,
x^2-y^2=(x+y)*(x-y)=10*4=40
6 0
3 years ago
A jeweler is dividing
Anuta_ua [19.1K]

Answer: OPTION D:  \frac{3}{32}

Step-by-step explanation:

By definiton, fractions have the following form:

\frac{a}{b}

Where "a" is called numerator and "b" is the denominator. The numerator and the denominator are Integers.

 In order to solve this exercise you need to remember de Division of fractions:

\frac{a}{b}\div\frac{d}{e}=\frac{a}{b}*\frac{e}{d}=\frac{a*e}{b*d}

In this case, according to the information given in the exercise, you know that \frac{3}{8}\ lb of rubies are divided into 4 lots.

Therefore, in order to calculate the weight in pounds of each lot, you need to divide \frac{3}{8}\ lb  by 4.

Then, you get the following result:

\frac{3}{8}\ lb\div4=(\frac{3}{8}\ lb) (\frac{1}{4})=\frac{3}{8*4}\ lb=\frac{3}{32} \ lb

As you can notice, this result matches with the Option D.

5 0
2 years ago
Which of the following is an arithmetic sequence with common difference 2?
Alekssandra [29.7K]

Answer:

The answer is B

Step-by-step explanation:

Its just B

3 0
3 years ago
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