Tina paid $6.60 for some $0.15 stamps and some $0.20 stamps. She bought 37 stamps in all. How many of each kind did she buy?
PLS HELP

Answers

Answer 1

Answer:

1 set of A= $0.15

1 set of B= $0.20

Total Stamps bought = 37

Total purchase = 37

Let X= Set A of $0.15 each

Y= Set B of $0.20 each

x+y = 37----------X=37-Y

0.15X + 0.20Y = 6.60

0.15(37-Y) + 0.20Y = 6.60

5.55- 0.15Y + 0.20Y =6.60

0.05 Y = 6.60-5. 55

Y=1.05/ 0.05= 21

X= 37-21= 16


Related Questions

Please i need help with this question

Answers

Answer:

785cm³

Step-by-step explanation:

3.14×5=15.7

15.7×5=78.5

78.5×10=785

785cm³

Answer:

Volume is 785 cm^3

Step-by-step explanation:

Well first you can find the area of the base which in this case is the circle.

Follow the formula to find area of a circle

a=πr^2

We know π is 3.14 so plug in the radius which is 5

3.14*5^2=a

Solve and you’d get 78.5

Now multiply the base by the height

78.5*10= 785

SECTION A:
QUESTION 1
MULTIPLE CHOICE (10 MARKS)
1.1 The way we see, think and feel about ourselves it includes all knowledge we have
about ourselves.
Self esteem
Self-awareness
Self-confidence

Answers

Answer:

Self esteem hope this helps

can yall help me smart people

Answers

Answer:

D y>0

Step-by-step explanation:

(0,∞)

HELP PLEASE!!!!!!!!!

Answers

Step-by-step explanation:

Hmm I saw this question before its C

Answer:

EF

Step-by-step explanation:

Solve for x and round yout answer to the nearest tenth.

Answers

Answer:

x=21.35764429=21.4

Step-by-step explanation:

Take SOHCAHTOA

in this problem you're going to use SOH, which is sine= opposite/hypotenuse

sin31=11/x

Multiply by x as a way to isolate it

x(sin31)=11

divide my sin31 to isolate x

x=11/sin31

x=21.35764429

Answer:

The answer is 21.4 when rounded to the nearest tenth!

Step-by-step explanation:

jillian buys 4 erasers that each cost $0.35.She makes the number line below to help her find the total cost. What is the total cost of the erasers?

Answers

Answer:

$ 1.40

Step-by-step explanation:

The total cost of the erasers is $1.40. You can come to this conclusion by multiplying 4 times 0.35, or using the number line by counting .35   4 times.

need help asapppppppppp​

Answers

Answer:

201.53[tex]m^{2}[/tex]

Step-by-step explanation:

That is a hexagonal pyramid, which means it consists of one hexagon and six triangles.

Let's first find the hexagonal base.

The formula to find the area of a hexagon is [tex]\frac{3\sqrt{3}}{2}a^{2}[/tex], where a is the length of one side of the hexagon. In this question, a = 6m

Solve that to find that the area of the hexagon is 93.53m^2.

Now, on to the triangles. The area of one triangle is the base times the height, then halved. We know that the base of the triangle is 6m as it shares the base with a side of the hexagon, and the question states that the height is also 6m.

6 * 6 = 36

36 / 2 = 18

Hence, the area of one triangle is 18m^2

However, there are six triangles - not just one!

6 * 18 = 108

Adding everything up:

93.53 + 108 = 201.53

The answer is 201.53m^2

x2–6x + 10 is to be written in the form ( x +a)2+ b Find the values of a and b.

Answers

Answer:

a = -3 and b = 1

Step-by-step explanation:

x² - 6x + 10

→ Half the second term and place it in the bracket

( x - 3 )²

→ Square -3

- ( 3 )² = -9

→ Place this outside the brackets along with plus 10

( x - 3 ) ² - 9 + 10

→ Simplify

( x - 3 ) ² + 1

Three lines intersect to form the triangle shown below. What is the value of x in degrees?

Answers

Answer:

x = 40°

Step-by-step explanation:

The base angles of the triangle are 71° and 69° ( vertical angles ) , then

x = 180° - (71 + 69)° = 180° - 140° = 40°

PLEASE HELP FOR A TEST IT'S DUE IN 5 MINUTES!

Floyd decides to invest $1,000,000 in a 20-year annuity that earns 4.6% APR compounded monthly. How much money will Floyd be paid each month from this annuity?

Answers

Answer:

$6380.38

Step-by-step explanation:

Floyd will be paid $2,504,880 each month.

What is Compound Interest?

Compound interest is an interest of interest to the principal sum of a loan or deposit. The concept of compound interest is the interest adding back to the principal sum so that interest is earned during the next compounding period.

Given that Floyd invests $1,000,000 in a 20-year annuity that earns 4.6% APR compounded monthly.

A = P(1+r)ⁿ

A = 1,000,000(1+0.046/12)²⁰⁽¹²⁾

A = 2,504,880

Hence Floyd will be paid $2,504,880 each month.

Learn more about compounded monthly click;

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Triangle srt is shown. Choose the correct equation or phrase to fill in each blank in the paragraph. For each blank, fill in the bubble before the equation or phrase that is correct.

How to do this question.

Answers

Answer:

is there an image or something to look at? we need one to give the answer

Step-by-step explanation:

Answer:

Step-by-step explanation:

Plsssssss help me with thiss.​

Answers

Answer:

Step-by-step explanation:

you need to mutpliy all or your numders 17 x 4 x 8 x 9 = 4896m


Which of the following inequalities is true?

Answers

Your answer would have to be c
E is the correct statement because 12 is greater than 5

(4-1) (4-1) (4-1)
please do in algebric exp​

Answers

Answer:

27

Step-by-step explanation:

Correct me if i'm wrong but I read this as (4-1)x(4-1)x(4-1).

Ok so the first step to follow in the order of operation is to do the equations in the paranthesis. 4-1=3.

So it is like dis: 3x3x3.

First 3x3=9, then we do it again but to nine this time. 9x3=27. there u have it

also i cant change my answer or edit it so im sry if this answer is wrong and like- unchangable :/

Find the volume of the cone round your answer to the nearest tenth

Answers

Answer= V=134.04

V=πr2h

pLEASE HELP I'LL GIVE BRAINLIEST

Answers

Hope it helps you......

can someone please factor this expression 27/x³- 8​

Answers

Answer:

(3x-2) (9xsquare+6x+4)

Answer:

Answer is below

Step-by-step explanation:

[tex]\frac{27}{x^{3} } -8= (\frac{3}{x})^{3} -2^{3} =(\frac{3}{x} -2)(\frac{9}{x^{2}}+\frac{6}{x}+4)[/tex]

(  from formula (a³ – b³) = (a – b)(a² + b² + ab)  )

help plz im so stuck

Answers

Answer:

Step-by-step explanation:

When dividing two negative numbers does the order of the numbers matter? And why?

Answers

Answer:

It doesn't matter

Step-by-step explanation:

Negative by negative = positive

PLEASE READ! HELPFUL INFORMATION

Answers

Answer:

u kind of forgot the attachment bestie

Refer to the figure below. Which of the following statements is true?

Answers

Answer:

c

Step-by-step explanation:

What is the area of the triangle given below?
2
11
O A. 11 sq. units
B. 13 sq. units
C. 8 sq. units
O D. 22 sq. units

Answers

Answer:

Area = 11 sq. units

Step-by-step explanation:

Base = 11 units

height = 2 units

Area = 1/2 × base × height

Area = 1/2 × 11 × 2

Area = 11 sq. units

11 square units is the area of the triangle , option A is correct.

What is Triangle?

A triangle is a three-sided polygon that consists of three edges and three vertices.

The formula to find area of triangle is half times of base and height

Given Base is 11 units

height is 2 units

Area = 1/2 × base × height

Plug in the values of base and height

Area = 1/2 × 11 × 2

Area = 11 sq. units

Hence, 11 square units is  the area of the triangle , option A is correct.

To learn more on Triangles click:

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Please look into this problem!

Answers

Answer:

$85000

Step-by-step explanation:

Answer: The answer is $85,000

Step-by-step explanation: Basically, you have to divide -3,400 on both sides. So 85,000 ÷ -3,400 = -25. Now, you have to substitute x, which is -25. -3,400 x -25 = 85,000. Hope this helps!! :)

What is the image of (−7,−8) after a dilation by a scale factor of 44 centered at the origin?

Answers

Answer:

(-308, -352)

Step-by-step explanation:

For a dilation from the origin, you multiply the x and y by the scale factor.

-7 * 44 = -308

-8 * 44 = -352

(-308, -352)

A triangle has side lengths of 17 inches, 19 inches, and 10 inches. What kind of triangle is it?

Answers

Answer:

Scalene triangle

Step-by-step explanation:

a scalene triangle has 3 uneven sides

What is the distance, d, between the points (3,) and (,1)? Enter your answer in the box. Enter your answer in simplest radical form. d =​

Answers

Answer:The answer is (√229)/6

Step-by-step explanation: i dont know

Answer:

[tex]([/tex]√[tex]\frac{229}{6}[/tex][tex])[/tex]

Step-by-step explanation:

Easy.

A gray crayon is made with 5mL of black wax for every 6 mL of white wax

Answers

The correct answers are B and D

A farmer sells 8.7 kilograms of pears and apples at the farmer's market. 3/4 of this weight is pears, and the rest is apples. How many kilograms of apples did she sell at the farmer's market?

Answers

Answer:

2.2 kg

Step-by-step explanation:

1000g = 1kg

8700g = 8.7kg

3/4 = 75%

8700 / 100 = 87

87 * 75 = 6525

8700 - 6525 = 2175

2.175kg or if rounded 2.2kg

PLEASE HELP 30+POINTS, THESE ARE VERY IMPORTANT

Answers

The first one is D (2/16 X 7000)and the second one is B (3/8)

PLEASE HELP... What do you do when none of the variables cancel out while solving systems by elimination?

Answers

Answer:

multiply one or both of the equations until a variable can cancel out

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