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
melisa1 [442]
3 years ago
7

Help i am in need of help

Mathematics
2 answers:
makvit [3.9K]3 years ago
8 0

You can start by writing equations with the given information

1) You know that together, Mindy and Troy ate 9, so you can write

M+T=9

2) Then, it says that Mindy ate 3, so M=3

3) Troy ate 1/4 of the total cake, however we don't know what the amount of the total cake is, so we can represent it as x, T=1/4x

4) Plug in these equations into the first equation, 3+1/4x=9

5) Solve for X, Subtract 3 from both sides to get 1/4x=6

6) Divide 1/4 on both sides, x=(6÷1/4)

x=24

Hope this helped :)

lbvjy [14]3 years ago
5 0

The equation you should first write, where m is the number of pieces Mindy ate, t is the number of pieces Troy ate, and 9 represents the number of pieces they ate together, would be:


m + t = 9


Next, you can plug in the other information you were given. Mindy ate three pieces, so plug in 3 for m. Troy ate 1/4 of the entire cake, so plug in 1/4c for t:


3 + 1/4c = 9


^That is an equation you could use from just plugging in the information from the problem. To solve, subtract 3 from each side to isolate the variable:


1/4c = 6


Finally, divide each side by 1/4. When you need to divide by a fraction, you can always multiply by its reciprocal to get the same results. That means dividing each side by 1/4 is the same as multiplying each side by 4:


c = 6 * 4


c = 24


There were 24 total pieces of cake.

You might be interested in
How many hours is one quarter of a day?​
Elena-2011 [213]

Answer:

6

Step-by-step explanation:

24/4 is 6, making there be six hours in a quarter of a day

7 0
2 years ago
I need help!! please, you don’t even have to do it all just explain to me how to do the first one I’ll catch on
lisov135 [29]

Hi there!

<u>What we need to know:</u>

The three main trigonometric ratios are sine, cosine and tangent:

\displaystyle sin\theta=\frac{opposite}{hypotenuse}     \displaystyle cos\theta=\frac{adjacent}{hypotenuse}    \displaystyle tan\theta=\frac{opposite}{adjacent}

"Opposite" refers to the side opposite the angle that is not the hypotenuse.

"Hypotenuse" refers to the side opposite the right angle of a right triangle.

"Adjacent" refers to the side next to the angle that is not the hypotenuse.

"θ" is read as "theta". It just represents the angle.

Keep in mind that these three ratios only apply to right triangles.

You can use the mnemonic "soh-cah-toa" to help you remember these ratios.

<u>First question</u>

For the first question, we're given the angle with a measure of 56 degrees and the length of the <em>hypotenuse</em>. We must calculate <em>a</em>, which represents the side <em>adjacent </em>to the given angle.

Given the hypotenuse and the adjacent side, we know that we must use the cosine ratio:

\displaystyle cos\theta=\frac{adjacent}{hypotenuse}

Plug in the given information:

\displaystyle cos56=\frac{a}{13}

Isolate <em>a</em> by multiplying both sides by 13:

13\displaystyle cos56=a

Solve using a calculator:

a=7.3

Therefore, <em>a</em> is equal to 7.3 when rounded to 1 decimal place.

<u>Other information you will need to know:</u>

In the above question, we needed to solve for a side. But what if we were given two sides and we needed to solve for an angle? For example:

\displaystyle sin\theta=\frac{5}{8}

In this case, we will use the inverse sine ratio:

\displaystyle \theta=sin^-^1(\frac{5}{8})

Solve using a calculator:

\displaystyle \theta=39

Therefore, the angle would equal approximately 39 degrees.

I hope this helps!

3 0
2 years ago
On average,Shane drinks 1/2 of a 6-ounce of water in 2/3 hour.How much water does she drinks in an hour.Show work
In-s [12.5K]

Answer:

4.5 ounces

Step-by-step explanation:

First dived 3 by 2 to figure out how much water she drinks in 1/3 of a hour.  

Second, you take the answer 1.5 ounces per 13 of an hour and multiply it by 3.

Lastly, you get your answer 4.5 ounces of water in a hour.

1. 3 / 2 = 1.5

2. 1.5 x 3 = 4.5

7 0
3 years ago
Read 2 more answers
18 = 3(3x - 6)<br> Please answer with solving steps thanks!
S_A_V [24]

Answer:

jayfeather friend me

Step-by-step explanation:

1

8

=

3

(

3

−

6

)

1

8

=

9

−

1

8

2

Add

1

8

18

18

to both sides of the equation

3

Simplify

4

Divide both sides of the equation by the same term

5

Simplify

Solution

=

4

3 0
3 years ago
Complete the point-slope equation of the line through (-5,4) and (1,6)
swat32
The slope is 1/3
hope that help
8 0
3 years ago
Other questions:
  • Brian counted 15 red cars and 20 blue cars in the parking lot. If the number of red cars stays the same, how many more blue cars
    9·1 answer
  • A shelf support 3 3/4. If a book weighs 3/8 of a pound, how many books can I think hold? If can add more support so the shelf ho
    14·1 answer
  • Multiply (−4) × (−2) × (−5).<br><br> A. −40<br> B. −8<br> C. 8<br> D. 40
    7·2 answers
  • 3x+2y=3y line 1 x+y=10 line 2 solve for x/y
    7·1 answer
  • Over which part of the domain is the piecewise function defined as<br> f(x) = 0.05x – 300?
    7·2 answers
  • The bait shop sells boxes of worms for fishing. The shop has 7 boxes left. There are 13 worms in each box.
    14·1 answer
  • A pitcher contains 19.25 cups of iced tea. You drink 1.25 cups of the tea each morning and 1.5 cups of the tea each evening. Whe
    14·1 answer
  • Please solve this I need help<br> +
    13·1 answer
  • A recipe for a loaf of bread calls for 2/3 of a cup of flour. If Milo used 12 cups of flour, how many loaves of bread did he pre
    10·1 answer
  • The numbers 1 through 25 are written on 25 cards with onenumber on each card. Sara picks one of the 25 cards at random.What is t
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!