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
Katena32 [7]
1 year ago
11

Please answer with everything needed i appreciate everyones help

Mathematics
2 answers:
yawa3891 [41]1 year ago
4 0
Recheck the answer with your teacher.

nika2105 [10]1 year ago
3 0

Step-by-step explanation:

d = price of 1 drink

s = price of 1 sandwich

3d + 5s = 25.05

4d + 2s = 13.8

we can do this by combining both equations so that they is only one variable left.

e.g. multiply equation 1 by 4 and equation 2 by 3, and then subtract equation 2 from equation 1 :

12d + 20s = 100.2

- 12d + 6s = 41.4

------------------------------

0 14s = 58.8

s = 58.8/14 = $4.20

3d + 5s = 25.05

3d + 5×4.2 = 25.05

3d + 21 = 25.05

3d = 4.05

d = 4.05/3 = $1.35

so, each drink costs $1.35.

You might be interested in
Hannah was saving for a new snowboard. the one she wanted originally cost $ 109. it had been marked down 10% and then another 12
Semenov [28]
So marked down 10 then 12 so 10+12=22
mark down total is 22%
100-22=78
78% of 109=0.78 times 109=85.02
tax of 6%
6+100=106%

85.02 times 1.06=90.1212 or about 90.12
90<90.12
no she is short 12 cents
3 0
3 years ago
Read 2 more answers
Find Sin (BAC+30) 80POINTS
Ann [662]

Answer:

\dfrac{2}{5}\sqrt{3}+\dfrac{3}{10}

Step-by-step explanation:

<u>Trigonometric Identities</u>

\sin (A \pm B)=\sin A \cos B \pm \cos A \sin B

<u>Trigonometric ratios</u>

\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}

where:

  • \theta is the angle
  • O is the side opposite the angle
  • A is the side adjacent the angle
  • H is the hypotenuse (the side opposite the right angle)

Using the trig ratio formulas for cosine and sine:

  • \cos (\angle BAC)=\dfrac{12}{20}
  • \sin (\angle BAC)=\dfrac{16}{20}

<u>Angles</u>

\sin (30^{\circ})=\dfrac{1}{2}

\cos (30^{\circ})=\dfrac{\sqrt{3}}{2}

Therefore, using the trig identities and ratios:

\begin{aligned}\sin (\angle BAC + 30^{\circ}) & = \sin (\angle BAC) \cos (30^{\circ})+\cos (\angle BAC) \sin (30^{\circ})\\\\& = \dfrac{16}{20} \cdot \dfrac{\sqrt{3}}{2} + \dfrac{12}{20} \cdot \dfrac{1}{2}\\\\& = \dfrac{16}{40}\sqrt{3}+\dfrac{12}{40}\\\\& = \dfrac{2}{5}\sqrt{3}+\dfrac{3}{10}\end{aligned}

3 0
1 year ago
Read 2 more answers
Write 3 equivalent fractions for these 8/12
Vaselesa [24]
Three equivalent fractions: 
2/3
4/6
16/24

7 0
3 years ago
HELP PLEASE <br> I need to know a line that goes through (17,1/3) and (25 1/2,1/2) aka the slope
konstantin123 [22]

Answer:

0.16/8.5

Step-by-step explanation:

so to get the slope use (Y2-Y1) over (X2-X1)

this means that the formula is

1/2-1/3

---------

25.5- 17

6 0
3 years ago
Simplify 7p +20-13q-4q-18+6p<br><br> a 13p + 17q-2<br> b 13p-17q+2<br> c3q+38<br> d 3q-6
AleksAgata [21]
The answer is most likely B
3 0
2 years ago
Read 2 more answers
Other questions:
  • A bald eagle can eat 3.85 kilograms of fish in a week. The eagle eats the same amount each day. How many grams of fish will the
    8·2 answers
  • One ratio you could use for converting units is
    15·1 answer
  • Multiply.<br><br> (5x2 – 3x)(8x2 + 4x)
    7·1 answer
  • 30 POINTS
    6·1 answer
  • Complete the first step in the solution<br> X\3= 11
    15·2 answers
  • George deposits $3,500 at 3.25% interest compounded monthly. What will his ending balance be after 5 years?
    15·1 answer
  • Jemma wants to solve the following system using the elimination method:
    14·1 answer
  • Which number line and expression show how to find the distance from 4 to 1?
    9·1 answer
  • Could you help me out please?? :’)
    14·2 answers
  • Could someone help me
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!