3 years ago

Which of the following has the lowest unit price?

Mathematics

1 answer:

saw5 [17]3 years ago

3 0

The answer is c . 24ib for $18.72

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McKenna and Lara work for their uncle Eddie who repairs skateboards and bicycles. Uncle Eddie is leaving for a vacation to the A

natali 33 [55]

Let x be a number of skateboards and y be the number of bicycles in Eddie's repair shop.

Eddie asks the girls to order 54 new wheels for 21 skateboards and bicycles, then

x+y=21.

One scateboard has 4 wheels, then x scateboards have 4x wheels, one bicycle has 2 wheels, then y bicycles have 2y wheels. In total there should be ordered 54 wheels, so

4x+2y=54.

Solve the system of equations:

$\left\{\begin{array}{l}x+y=21\\4x+2y=54.\end{array}\right.$

From the first equation $x=21-y.$ Substitute it into the second equation:

$4(21-y)+2y=54,\\ \\84-4y+2y=54,\\ \\-2y=54-84,\\ \\-2y=-30,\\ \\2y=30,\\ \\y=15.$

Then

$x=21-15=6.$

Answer: 6 scateboards and 15 bicycles.

8 0

3 years ago

The sum of two numbers is 18. The larger number is twice as large as the smaller number. What are the two numbers? Please explai

snow_tiger [21]

The two numbers are 12 and 16. 12 + 6 = 18. 6 doubled is 12. 12 plus 6 equals 18.

7 0

3 years ago

Someone h e l p me on this it is geometry

ladessa [460]

BC = 6 km

<u>/</u><u> </u> ACB = 34°

AC = ?

cos 34° = $\frac{BC}{AC}$

=> 0.829 = $\frac{6}{AC}$

=> AC = $\frac{6}{0.829}$

=> AC = 7.23763570567

=> AC = 7 km

=> AC = 10 km $\:\:\:\:\:\:\:\:$ (nearest tenth)

$\\$

<h3>Answer : 10 km</h3>

$\\\\\\\\$

HOPE IT HELPS

PLEASE MARK ME BRAINLIEST ☺️

7 0

3 years ago

Last year, your salary was $33,975. This year, your boss tells you your salary will be $34,960. What percent raise (change) did

Pavlova-9 [17]

Answer:

2.9%

Step-by-step explanation:

5 0

3 years ago

When multiplying exponential terms with the same base, which best explains how to simplify the expression?

ololo11 [35]

Answer:

First answer: "Add the exponents"

Step-by-step explanation:

The laws of exponents include the following for product of exponents with the same base:

$x^a\,*\,x^b = x^{a+b}$

which implies addition of exponents

So you need to add exponents

5 0

3 years ago