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
MariettaO [177]
3 years ago
9

Kylie and her children went into a bakery and she bought $10 worth of donuts and brownies. Each donut costs $1.25 and each brown

ie costs $2.50. She bought twice as many donuts as brownies. Determine the number of donuts and the number of brownies that Kylie bought.
Mathematics
2 answers:
Nataly [62]3 years ago
8 0

Answer:

she bought 4 donuts and 2 brownies.

Step-by-step explanation:

This is a question on simultaneous equations where two variable are given with two or more relational equations. if she bought $10 worth of donuts and brownies, and each donut costs $1.25 and each brownie costs $2.50.

Then,

1.25d + 2.50b = 10 where d and b are the numbers of donuts and brownies purchased respectively.

if She bought twice as many donuts as brownies, then

d = 2b

Therefore,

1.25(2b) + 2.50b = 10

5b = 10

b = 2

d = 2 × 2 = 4

Hence she bought 4 donuts and 2 brownies.

daser333 [38]3 years ago
7 0

Answer:

4 donuts and 2 brownies

Step-by-step explanation:

Guess and check

2 donuts --> $2.50

1 brownie -->$2.50

Since the amount of donuts is double,

we try :

4 donuts -->$1.25(4) = $5

2 brownies --> $2.50(2) = $5

You might be interested in
There are 24 boys and 16 girls on the playground. What is the ratio of boys to total number of children on the playground?​
Reil [10]

Answer:

6 to 4

Step-by-step explanation:

24/4 = 6 Boys

16/4 = 4 Girls

Boys 6 / Girls 4

5 0
3 years ago
The lifespan of a guinea pig is 6 years less than that of a giraffe. The lifespan of a tiger is 4 times that of the guinea pig.
faust18 [17]
Guinea pig (p) = 4 years old
Giraffe (g) = 10 years old
Tiger (t) = 16 years old

P = g-6
T = 4p

30 = g+g-6+(4(g-6))
30 = 2g-6+4g-24
30 = 6g-30
+30 +30
60 = 6g
6 6
10 = g

P = 10-6
P = 4

T = 4(4)
T = 16
8 0
3 years ago
Noah’s recipe for one batch of sparkling orange juice uses 4 liters of orange juice and 5 liters of soda water. If someone uses
hodyreva [135]
500 liters of soda water
6 0
2 years ago
PLEASE HELP :)
Gnom [1K]

Answer:

Math can help us do many things that are important in our everyday lives. ... As a parent, you could talk to your teen about how you use math in your daily life. You ... Share with your child the examples of everyday math applications, which are listed ... Your teen will learn skills in algebra class that will help them with money.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Some number was divided into 104.13. This quotient was multiplied by 4, after which the resulting product was added to 5. Given
SVEN [57.7K]

Answer:

The initial number is <u>-1218.321</u>.

Step-by-step explanation:

Let the initial number be 'x'.

The number 'x' is divided into 104.13.

So, we divide the number 'x' by 104.13. This gives,

\dfrac{x}{104.13}

Now, the quotient is multiplied by 4. So, this means we need to multiply 4 to the fraction above. This gives,

\dfrac{x}{104.13}\times 4\\\\\frac{4x}{104.13}

Now, 5 is added to the result. This gives,

\frac{4x}{104.13}+5

Now, as per question:

\frac{4x}{104.13}+5=-41.8

Now, solving for 'x', we add -5 both sides. This gives,

\frac{4x}{104.13}+5-5=-41.8-5\\\\\frac{4x}{104.13}=-46.8\\\\4x=-46.8\times 104.13\\\\4x=-4873.284\\\\x=\frac{-4873.284}{4}=-1218.321

Therefore, the initial number is -1218.321.

6 0
3 years ago
Other questions:
  • Math help please... i will be marking brainly
    12·1 answer
  • I am a french soldier who became a major ally to the Continental Army, and buddies with George Washington! Who am I
    11·1 answer
  • What is the distance between the points (-6,5) and (8,-2) on a coordinate plane?
    9·1 answer
  • How do u evaluate an answer
    11·1 answer
  • Select all that apply
    13·1 answer
  • What is 485,330 in expanded form
    13·2 answers
  • I need some help on this homework pls
    11·2 answers
  • Find all the points having an x-coordinate of 4 whose distance from the point (-2,-1) is 10
    5·1 answer
  • Find the 76th term on the arithmetic sequence<br> 4, 7, 10, 13
    10·1 answer
  • What is 1 as a decimal?<br> 2.75<br> 0.4<br> 0.364<br> 0.36
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!