Mathematics High School

At a school cafeteria a cold lunch costs $1.80, and a hot lunch costs $3.00. During one school year a teacher spent
a total of $288.60 on cold lunches and hot lunches. The number of cold lunches the teacher bought was 1 fewer
than twice the number of hot lunches the teacher bought.
Which system of equations can be used to find c, the number of cold lunches, and h, the number of hot lunches, the
teacher bought during the school year?

Answers

Answer 1

160 is cold rest is hot c:&:&:

Related Questions

Find the measure of the angle

Answers

Answer:

145

Step-by-step explanation:

it's right in between 150 and 140 so it's gotta be 145.

Which polygon has interior angles whose measures sum to 720°?

hexagon
nonagon
heptagon
octagon

Answers

Answer:

Hexagon

Step-by-step explanation:

Explanation: The sum of the interior angles of a hexagon must equal 720 degrees. Because the hexagon is regular, all of the interior angles will have the same measure. A hexagon has six sides and six interior angles.

4 divided by 992 because my calculator isn't helping and i'm not trynna fail

Answers

Answer:

4/992 = 0.00403225806

Step-by-step explanation:

I hope this helps!!

Deshaun deposits 500 into an account with an interest rate of 5 percent how much intrest sill he be paid in 4 years?

Answers

Answer:

$100

Step-by-step explanation:

Given data

Principal = 500

Interest= 5%

Time = 4years

Applying the simple interest expression

SI= PRT/100

substitute

SI= 500*5*4/100

SI= 10000/100

SI= 100

Hence the interest after 4 years is $100

16 - n = -3

I have ot figure out what n is.

Answers

Answer:

n=13

Step-by-step explanation:

because you can do inverse method 16-3 equal 13

Answer:

-19

Step-by-step explanation:

16-n=-3

first subract 16 frrom both sides.

16-n=-3

-16 -16

which equals to n=-19

Please help for a grade!?

Answers

Answer:

8.9

Step-by-step explanation:

Solve one sixth ÷ 6 = __

Answers

Answer:

1/36

Step-by-step explanation:

Answer:

1/36

Step-by-step explanation:

(1/6)÷6 (Multiply by its recipricol, so 6 would change to 1/6 and change the division sign to multiplication)

(1/6)x(1/6) (Solve)

(1/36)

Change 5400 millilitres to litres.

Answers

Answer:

1 ml = 0.001 litres

5400 ml = 5.4 litres

5400/1000 = 5.4
Divide 1000 by moving the decimal point forward 3 times

What is -8 + -14
6
22
-6
-22

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

which is greater 1.831 or 1.381?

Answers

Answer:

1.831

OI JOSUKE

Step-by-step explanation:

You can get Brainliest

Answers

Answer:

I honesty dont know

Step-by-step explanation:

Answer:

Step-by-step explanation:

A is a negitive number

B is a negitive number

C is less than D by 3

( Hope this helps )

What is the slope of a ramp that rises 6 inches for every horizontal change of 12 inches?
Select one:

1/6

1/12

2

1/2

Answers

Answer:

the last one is the answer

1/2

What happens when the body requires more
oxygen?

Answers

Answer:

You breath faster

Step-by-step explanation:

Answer:

when the requires more oxygen our breathing rate increases

can some one help me fast cause i need this done bye the end of class

Answers

Answer:

1. 255m 2. 172m

Step-by-step explanation:

1. 200+55=255m

2. 227-55=172m

A rock is tossed over a seaside cliff. The equation y=−16x^2+50x+118 gives the height of a rock above sea level. How long until the rock hits the water?

Answers

I don’t know I just want to get points but good luck

What should you do first to simplify the expression ( 54 + 6) ÷ 26 + 5?

Answers

Do the brackets first as it says in BIDMAS

What is the solution set of the system {2x - 3y =19 and 7x +4y = -6?

Answers

{ 2x-3y=19
{ 7x+4y=-6

{ 2x=19+3y
{ 7x=-6-4y

{ x=19/2+3/2y
{ x=-6/7-4/7y

19/2+3/2y=-6/7-4/7y
y=-5

x=-6/7-4/7(-5)
x=2

(x,y) = (2,-5)

Solution Check
{ 2 · 2-3(-5)=19
{ 7 · 2+4(-5)=-6

{ 19=19
{ -6=-6

Help me please chile

Answers

Answer:

1 neither

2 supplementary

3 supplementary

Step-by-step explanation:

Bejjjwjwnnaksuehvbsjsusue yes

help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Answers

Number 3 is C number 4 is c

rearrange the following equations into the form y=mx+c

a)y=-1+5x

b)2x+2y=8

c)3x+y=3

plssssssssssssssssssssss help asappppppppp ill give brainliest

Answers

Answer:

a. y=5x-1

b. 2y=8-2x

y=8-2x/2

y=4-x

c. y=3x-3

Step-by-step explanation:

there you go

Combine like terms:
12x + 3y + 4 - 6y - 9

Answers

Answer:

12x-3y-5

Step-by-step explanation:

3y-6y=-3y

4-9=-5

Answer:

12x - 3y - 5

Step-by-step explanation:

12x + 3y + 4 - 6y - 9 | Given

12x - 3y + 4 - 9 | Subtract 6y from 3y. It becomes -3y.

12x - 3y - 5 | Add +4 and -9 to get -5.

Given a circle with radius of 18 m, what is the diameter?

Answers

Answer:

d=36m

Step-by-step explanation:

d=2r=2·18=36m

Answer:

Your in luck! I'm actually learning this right now!

Step-by-step explanation:

d = 2r so basically your diameter is your radius times 2! So 18 x 2 = 36 so the answer should be 36 hope this helps!

(GIVING BRAINLIEST!!)

Gethyn drinks 48 fluid ounces of water in one day. He needs to drink 8 cups in total. How many more cups does he need to drink?

A) 2 cups
B) 6 cups
C) 384 cups
D) 768 cups

Answers

Answer:A

Step-by-step explanation:1 cup is equal to 8 fluid ounces so 48/8=6 and since he needs to drink 8 cups of water the answer is 2 more.

The number of cups of water Gethyn need to drink more is 2 cups. Therefore, option A is the correct answer.

What is metric conversion?

Metric Conversion refers to the conversion of the given units to desired units for any quantity to be measured.

Given that, Gethyn drinks 48 fluid ounces of water in one day.

We know that, 1 ounce = 0.125 cups

Here, 48 fluid ounces = 48×0.125

= 6 cups

Number of cups of fluid = 8-6

= 2 cups

Therefore, option A is the correct answer.

To learn more about the metric conversion visit:

brainly.com/question/21244256.

#SPJ2

A line is rotated. Which of these could be the result?

Answers

Answer: The answer is B.

Step-by-step explanation:

Answer:

Step-by-step explanation:

a line would be a line not a segment

4) If Jackie has $175 in the bank, and the bank charges her $3.25 per month for having her
bank account below $200 how much money will she have in the bank if she does not deposit or
with draw any money after 5 months.

Answers

Answer:

$3.25 x 5 months = $16.25

$175 - $16.25 = $158.75

If Jackie doesn't deposit any money after 5 months, she will have $158.75 left over from the $175 in the bank

Step-by-step explanation:

help regular 7th grade math

Answers

Answer:

Y = 5x + 3

Now for the other one if your asking is:

Y = -12x + 4

Hope this helped if so please mark brainlist!

Help ASAP!!!!
Multiple choice answer

Answers

Answer:

C. 9.24

Step-by-step explanation:

x is the height here, looking at the triangle.

To find x, however, we first have to find the hypotenuse. To formula for that is b (side we know)/cos(α) (angle we know). Substitute b for 6, and α for 57.

6/cos(57) would equal about 11.0647.

Now back to x. To figure that out, subtract 6² from 11.01647². Then, find the square root of that.

x = √11.01647² - 6²

x = √121.3626112609 - 36

x = √85.3626112609

x = 9.23918888544335

x ≈ 9.24, so C is the answer.

help please i dont get this

Answers

Answer:

1. Not similar

2. Similar, ABC is similar to FED by SSS

Step-by-step explanation:

1. Not similar.

The interior angles of a triangle always have to add up to 180, and since the first triangle has angles 30 degrees and 90 degrees, you know the third angle will have to be 180 - 30 - 90 = 60 degrees.

The second triangle's third angle will have to be 50 degrees because 180 - 90 - 40 = 50 degrees.

Since the three angles of the triangle are not the same, they are not similar.

2. Similar, ABC is similar to FED by the SSS triangle similarity postulate.

First, AB is similar to FE because AB = 15 and FE = 5, so the scale factor is 3

Next, BC is similar to ED because BC = 9 and ED = 3, so the scale factor for these sides is also 3

Lastly, CA is similar to DF because CA = 12 and DF = 4, so the scal factor for this is also 3.

Since the scale factor for all of the sides is 3, these two triangles are similar.

Not similar. The interior triangles always have to add up to 180

Use properties of exponents to complete the equivalent expression,
1910
197
19

Answers

9514 1404 393

Answer:

Step-by-step explanation:

The applicable rule of exponents is ...

(a^b)/(a^c) = a^(b-c)

[tex]\dfrac{19^{10}}{19^7}=19^{10-7}=\boxed{19^3}[/tex]

The exponent of interest is 3.

Solve for unknown quantity.
1 = 4
- -
K 20

Answers :
A. 4
B. 5
C. 6
D. 17

Pls help me

Answers

Answer:

dive by 5 take 20 if 4×5 give u 20 the 20/4 will give you 5

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