1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dedylja [7]
3 years ago
15

Write a system of equations and solve.

Mathematics
1 answer:
iren2701 [21]3 years ago
5 0
Let R, C, B represent prices of Red Bull, chips, and Bagel Bites, respectively.
.. 2R +1C +2B = 9
.. 3R +2C +3B = 14
.. 5R +3C +3B = 20

These equations have solution
.. R = 2.50
.. C = 1.00
.. B = 1.50

A can of Red Bull costs $2.50.
A bag of chips costs $1.00.
A box of Bagel Bites costs $1.50.

_____
If you want to solve these by hand, you can add the first two equations and subtract the third to find the value of B. Then you can double the first equation and subtract the second to find the value of R. Then you can use the first equation to find the value of C.

You might be interested in
Let c = 20. Evaluate the expression.<br><br> 2c + 6
vitfil [10]

Answer:

46

Step-by-step explanation:

Since we know the value of the variable c, we can substitute 20 for c

2c + 6

2(20) + 6

40 + 6

46

7 0
3 years ago
Nela is filling her circular backyard swimming pool. The radius of the pool is 5 feet and the height is 6 feet. Which shows the
blagie [28]

Answer:

V=\pi5^2*6

Step-by-step explanation:

If this makes it a little easier to read:

V = \pi * 5^2 * 6

This is the answer when you solve it btw:

471.24

Also, who buys a swimming pool in the shape of a cylinder?

6 0
4 years ago
Given f(x) =
sergejj [24]

Answer:

A

Step-by-step explanation:

We are given the function:

\displaystyle f(x) = \left\{        \begin{array}{ll}            2\cos(\pi x) \text{ for }  x \leq -1 \\ \\          \displaystyle   \frac{2}{\cos(\pi x)}\text{ for } x > -1        \end{array}    \right.

And we want to find:

\displaystyle \lim_{x\to -1}f(x)

So, we need to determine whether or not the limit exists. In other words, we will find the two one-sided limits.

Left-Hand Limit:

\displaystyle \lim_{x\to-1^-}f(x)

Since we are approaching from the left, we will use the first equation:

\displaystyle =\lim_{x\to -1^-}2\cos(\pi x)

By direct substitution:

=2\cos(\pi (-1))=2\cos(-\pi)=2(-1)=-2

Right-Hand Limit:

\displaystyle \lim_{x\to -1^+}f(x)

Since we are approaching from the right, we will use the second equation:

=\displaystyle \lim_{x\to -1^+}\frac{2}{\cos(\pi x)}

Direct substitution:

\displaystyle =\frac{2}{\cos(\pi (-1))}=\frac{2}{\cos(-\pi)}=\frac{2}{(-1)}=-2

So, we can see that:

\displaystyle \displaystyle \lim_{x\to-1^-}f(x)=\displaystyle \lim_{x\to -1^+}f(x) =-2

Since both the left- and right-hand limits exist and equal the same thing, we can conclude that:

\displaystyle \lim_{x \to -1}f(x)=-2

Our answer is A.

8 0
3 years ago
How to borrow if you can't subtract from the lowest number on top
Elis [28]
Go to the number next to the one you cannot subtract from, take one away, and add a one in front of the number you cannot subtract from. e.g. 
27      1(1)7             the answer would be 9
-8             -8


for your problem the answer would be 1109
6 0
3 years ago
Read 2 more answers
Albert has $16 in savings at the beginning of a month. He then decides to save $8 every week. Which inequality represents the so
Alex Ar [27]

Answer:

it w > 7  

Step-by-step explanation:

because 120> 3 = w56 (56+30) 86>5  ybecause 120> 3 = w56 (56+30) 86>5  ybecause 120> 3 = w56 (56+30) 86>5  ybecause 120> 3 = w56 (56+30) 86>5  ybecause 120> 3 = w56 (56+30) 86>5  ybecause 120> 3 = w56 (56+30) 86>5  ybecause 120> 3 = w56 (56+30) 86>5  ybecause 120> 3 = w56 (56+30) 86>5  ybecause 120> 3 = w56 (56+30) 86>5  ybecause 120> 3 = w56 (56+30) 86>5  ybecause 120> 3 = w56 (56+30) 86>5  ybecause 120> 3 = w56 (56+30) 86>5  ybecause 120> 3 = w56 (56+30) 86>5  ybecause 120> 3 = w56 (56+30) 86>5  y

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of x? 15 20 60 180 An isosceles triangle with base angles labeled 60 degree and the other labeled open parenth
    8·1 answer
  • Which until rate is the lowest price per ounce
    11·2 answers
  • Using the numbers 0, 1, 2, 2 1/2, 3, 7, 7 1/2, 9, and 10. find five numbers with the mean of 5.
    9·1 answer
  • Tim can complete 30 questions per hour how many questions can he complete in 1/3 of an hour
    6·2 answers
  • The graph shows the amount of money you and a friend are saving for a camping trip. You: 2 weeks 40 dollars. 5 weeks 100 dollars
    8·1 answer
  • Aiguo places 6 circular biscuits, each with the same diameter, on a baking sheet as
    13·1 answer
  • Solve for x.<br> 6x - 3 + 2x = x + 7 +7x<br><br> A. 5/2<br> B. 5<br> C. -5/2<br> D. no solution
    14·1 answer
  • What is the complete factorization of the trinomial x²+9x+18?​
    5·2 answers
  • GIVING 25 POINTS + BRAINIEST
    7·1 answer
  • Which of the following functions is graphed below?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!