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
Juli2301 [7.4K]
3 years ago
13

I need your helppppppppppppppp

Mathematics
1 answer:
Serga [27]3 years ago
5 0

Answer:

Draw a dime and 2 pennies, or 2 nickles and 2 pennies, or 12 pennies, or 1 nickel and 7 pennies

Step-by-step explanation:

just draw the coins that add up to 12

You might be interested in
The sum of three numbers 13. The sum of twice the first number, five times the second number, and six times the third number is
Kruka [31]

Answer:

The three numbers are 56/5, -39/5 and 78/5.

Step-by-step explanation:

EQUATION 1:

First number: x

Second number: y

Third number: z

x + y + z = 19

EQUATION 2:

Sum of following is 77

Twice the first number: 2x

5 times the second number: 5y

6 times the third number: 6z

So, 2x + 5y + 6z = 77

EQUATION 3:

Difference between first and second number is 19.

x - y = 19

Equation 1: x + y + z = 19

Equation 2: 2x + 5y + 6z = 77

Equation 3: x - y = 19

1. Find x in terms of y

x - y = 19

x = 19 + y

2. Find y in terms of z by putting the value of x in first and second equation

  x + y + z = 19

  (19 + y)+ y + z = 19

  2y + z = 19 - 19

  2y + z = 0

  y = -z/2

and

2(19+y)+5y+6z=77

now putting the value of y in this equation

2(19-z/2)+5(-z/2)+6z=77

38 - z -5z/2 +6z = 77

5z/2 + 38 = 77

5z/2 = 39

z = 78/5

Now, y = -z/2

y = (-78/5)/2

y = -39/5

and  x = 19 + y

x = 19 - 39/5

x = 56/5

Therefore, the three numbers are 56/5, -39/5 and 78/5.

Keyword: Sum

Learn more about sum at

brainly.com/question/10666510

brainly.com/question/4034547

#LearnwithBrainly

7 0
2 years ago
Read 2 more answers
When producing hydrogen iodide, the energy of the reactants is 581 kJ/mol, and the energy of the products is 590 kJ/mol. The equ
dimaraw [331]

The energy of the reaction is 9 kJ/mol and the reaction is endothermic.

<h3>What is the total energy of the reaction?</h3>

We know that in a reaction, there could be loss or gain of energy. If there is a loss of energy in a reaction, it means that the reaction is exothermic and heat is given out. If heat is gained in the reaction, it means that the reaction is endothermic and heat is absorbed.

Given that;

Energy of the products =  590 kJ/mol

Energy of the reactants = 581 kJ/mol

Using;

Energy of products - Energy of reactants

= 590 kJ/mol - 581 kJ/mol

= 9 kJ/mol

Learn more about energy of reaction:brainly.com/question/2223923

#SPJ1

5 0
1 year ago
QUICK NEED HELP PLEASE!!!
Verizon [17]
I’m not going to do them for you but all you have to remember
Please Excuse My Dear Aunt Sally
P is for parenthesis ( )
E is for exponents like 2to the power 3 also written like this 2^3
M and D are grouped together for multiplication and division. It doesn’t matter what order you do M and D in
same is for A and S additions and subra tions are the same priority
6 0
3 years ago
Read 2 more answers
Gold has a density of 0.70 pounds per cubic inch and copper has a density of 8.96 grams per cubic centimeter. How much will 1
never [62]

Answer:

1 cubic foot of gold will weigh 1209.6 pounds

1 cubic foot of copper will weigh 559 pounds.

Step-by-step explanation:

Density = Mass/Volume

Mass = Density × Volume

Volume of each metal = 1 ft³

a) Gold

Density of Gold = 0.70 pounds per cubic inch(lb/in³)

We will be converting the Volume of gold from cubic foot to cubic inches

The Volume of gold given in the question = 1 cubic foot = 1 ft³

1 cubic foot = 1728 cubic inches

Hence, the volume of Gold = 1728 in³

Mass of Gold = Density of Gold × Volume of Gold

Mass of Gold = 0.70Ib/in³ × 1728 in³

= 1209.6 lb(pounds)

2) Copper

Density of copper = 8.96 grams per cubic centimeter

Ib = pounds

We convert this density in g/cm³ to ib/in³

453.5g = 1 Ib

8.96g = y Ib

Cross Multiply

= 453.5g × y Ib =8.96g × 1 Ib

= y Ib = 8.96g × 1 Ib/453.5g

y Ib = 0.0197574421 Ib

Density of Copper = 0.0197574421 Ib/cm³

28,316.8 cm³ = 1 ft³

1 cm³ = x ft³

x ft³ = 1 cm³ × 1 ft³/28,316.8cm³

x ft³ = 0.0000353147 ft³

1 cm³ = 0.0000353147 ft³

We have to convert the density of Copper from Ib/cm³ to Ib/ft³

0.0197574421 Ib/cm³ = 0.0197574421 Ib/0.0000353147 ft³

559.46793026 Ib/ft³

Volume of copper = 1ft³

Mass = Density × Volume

Mass of copper = 559.46793026 Ib/ft³ × 1 ft³

= 559.46793026 Ib or pounds

≈ 559 pounds

Therefore , the weight of gold is 1209.6 pounds and the weight of copper will be 559 pounds.

7 0
3 years ago
Graph the line that represents a proportional relationship between d and t with the property that an increase of 5 units in t co
Rufina [12.5K]

Answer:

Make a Line from 0, 0 to 1, 3

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is 21divided by 7/4
    13·1 answer
  • The area of a rectangle is 24 square cm. the length of the rectangle is 8 cm. find the perimeter
    5·1 answer
  • If y varies directly as x and k = 8, find x when y = 8<br><br> 1. 1<br> 2. 8<br> 3. 64
    5·1 answer
  • Complete the following: (r-s)^2 = (___)^2 -(___)rs + s^2
    6·1 answer
  • A total of 2 yards of frabric is used to make 5 identical pillows. How much fabric is used for each pillow?
    13·2 answers
  • Find the mean median and mode for 3,5,2,4,3,4,3,5,16
    10·2 answers
  • What is the slope of a line that goes through points (-5, -7) and (-4, 1)​
    7·2 answers
  • Find the volume of a baseball if the diameter is 2.86 inches
    10·1 answer
  • My mama got me doing freaking school work pls help me out
    9·1 answer
  • Round your answer to the nearest hundredth.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!