Jillian is selling boxes of cookies to raise money for her basketball team. The 10 oz. box costs $3.50, while the 16 oz. box costs $5.00. At the end of one week, she collected $97.50, selling a total of 24 boxes. The system of equations that models her sales is below. x+ y= 24 3.50x + 5.00y = 97.50 Solve the system of equations. How many 10 oz. boxes were sold? a. 6
b. 9
c. 12
d. 15
Answers
x = 10 oz. boxes
y = 16 oz. boxes
simultaneous equations
x + y = 24 ---1)
3.50x + 5.00y = 97.50 ----2)
to solve for x we need to eliminate y, therefore we have to multiply 1st equation by 5
5x + 5y = 120 --3)
subtract 3) - 2)
5x - 3.50x = 120 - 97.50
1.50x = 22.5 x = 15
number of 10 oz. boxes are 15. answer is d.15
Answer:
d is the correct answer
Step-by-step explanation:
Related Questions
19) If x an y are odd numbers which of the following is even?a)(X+y)/3b) (x+y) x^y c) x^yd)x^y/2
-5v-6=3v+10 i really hate math but i need help
Mrs. Daniel pays $324 for a handbag and 3 pairs of shoes. The handbag costs half as much as the 3 pairs of shoes combined. Find the cost of the handbag.
How many sides does a parallelogram have?
Answers
Answer:.
Step-by-step explanation:
Answers
Solving the expressions, we find 140 = 140, thus, they are the same amount.
--------------------------
- One hundred is 1 multiplied by 100, thus
- 4 tens is 4 multiplied by 10, thus
- 1 hundred 4 tens is
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- 14 tens is 14 multiplied by 10, thus
- Applying the multiplications, that is, solving the expressions, we get the same amount, this is why the measures are the same amount.
A similar problem is given at brainly.com/question/20742606
Answers
so let x be purchase will she be able to make without having to use her credit card
x >= $ 90
Answer:
Step-by-step explanation:
six puzzles for $11.99 each and a board game for $15.89
Answers
Answer: Breadth = 11 ; Length = 8
Step-by-step explanation:
Let the width of the rectangle be 'x'
Length of the rectangle = x - 3
Perimeter of the rectangle = 38
Perimeter of rectangle formula = 2 ( length + breadth )
Substitute:
2 ( x + x-3 ) = 38
2 ( 2x - 3 ) = 38
2x - 3 = 19
2x = 19 + 3
2x = 22
x = 11
Therefore, the breadth = 11
Length = x-3 = 11 - 3 = 8
To check, find the perimeter:
2( 11 + 8)
= 2 ( 19 )
= 38.
We get the same perimeter so the answer is correct.
Answer:
length =8
Step-by-step explanation:
x= width
x-3(3 inches less than the width)
x+x-3+x+x-3=38
4x-6=33. add 6 on both sides
4x=44 divide by 4
x=11. plug 11 in for x because 11 is the width. in the equation x-3. (x=width) 11-3= 8. The length is 8.
Answers
Answer: 7x + 4y + 8.
Step-by-step explanation:
Given data:
15 + 12x -5x +4y -7
Solution:
15 + 12x -5x +4y -7
Subtract the numbers
= 8 + 12x – 5x + 4y
Collect like terms
= 8 + 7x + 4y
Rearrange the equation
= 7x + 4y + 8
per week, while Theodore predicts that it
will grow 3/4 foot per week. The sunflower
grows 4 1/2 feet in 7 1/2 weeks. Which
statement is correct?
Answers
Final answer:
The sunflower grew at a rate of 0.6 feet per week, which is closer to Rachael's prediction of 0.4 feet per week. Therefore, Rachael's prediction was more accurate.
Explanation:
To solve this problem, we have to find the rate at which the sunflower grows in a week. The rate was given as 4 1/2 feet in 7 1/2 weeks. When we divide 4.5 feet (the total growth) by 7.5 weeks (the total time), we get a weekly growth rate of 0.6 feet.
Comparing this with the predictions made by Rachael and Theodore, we can see that the sunflower grew at a rate closer to Rachael's prediction of 2/5 feet per week, which is equivalent to 0.4 feet per week. Therefore, the statement-making Rachael's prediction correct is the accurate one.
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