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
denis23 [38]
3 years ago
15

Sebastian has $3.75 worth of dimes and quarters. He has a total of 21 dimes and quarters altogether. Determine the number of dim

es and the number of quarters that Sebastian has.
Mathematics
1 answer:
Nostrana [21]3 years ago
6 0

Answer:

Sebastian cold have 10 dimes and 11 quarters.

Step-by-step explanation:

11 quarters = $2.75

10 dimes = $1.00

You might be interested in
A pharmacist wants to mix a 30% saline solution with a 10% saline solution to get 200 mL of a 12% saline solution. How much of e
Bess [88]

Answer:

30% constituents=20 mL

10% constituents=180 mL

Step-by-step explanation:

x= 30% volume

y=10% volume

For our first equation, we know the total volume is 200 mL and is the sum

x+y=200

y=200-x (1)

For our second equation, we do a mass balance for 200 mL of final solution.

12% w/v = 0.12 g/mL

This means that in 1 mL of solution, we have 0.12 g of NaCl.

For any solution, concentration multiplied by volume will give the mass of NaCl:

Mass in x mL= C*V (g/mL) (mL)

So in 200 mL, we have

0.12*200 (g/mL) (mL)

=24g of NaCl

Cx*Vx + Cy*Vy=24

0.3x+0.1y=24 (2)

Substitute y=200-x into (2)

0.3x+0.1(200-x)=24

0.3x+20-0.1x=24

0.2x=24-20

0.2x=4

Divide both sides by 0.2

0.2x/0.2=4/0.2

x=20

Substitute x=20 into (1)

y=200-x

y=200-20

y=180

30% constituents=20 mL

10% constituents=180 mL

6 0
2 years ago
Pls help me pls pls pls pls pls
serg [7]

Answer:

-2, 0, d

refer the image attached

6 0
2 years ago
Read 2 more answers
Help me with this!!!!
andrezito [222]

Answer: I think it would be 3.5

Step by Step Explanation: BRAINLIEST?!?

8 0
3 years ago
Read 2 more answers
What is the product of 119 thousandths times 10?
Gnesinka [82]
The answer is A becaues 119 thousand times 10 equals 1190000
then you divide it by 100 to get A.119 hunderths
3 0
3 years ago
Read 2 more answers
What is area of this
nata0808 [166]

Answer:

A = 20.5 sq units

Step-by-step explanation:

you have the height of 5 but need to figure out the base

we can use the Pythagorean Theorem two times to find it

1) a² + 5² = 7²

a² = 49-25

a = \sqrt{24} = \sqrt{4}·\sqrt{6} = 2\sqrt{6}

2) b² + 5² = 6²

b² = 36-25

b = \sqrt{11}

Base = 2\sqrt{6} + \sqrt{11}

A = 1/2 x 5· (2\sqrt{6} + \sqrt{11})

A = 2.5 · (2\sqrt{6} + \sqrt{11})

A = 2.5(8.2)

A = 20.5

3 0
3 years ago
Other questions:
  • A square pyramid has a base area of 64 ft2. The pyramid’s total surface area is 224 ft2.
    12·1 answer
  • What is the y-intercept of the graph of the equation y=2(4^x) ?
    8·2 answers
  • What is the square root of 100​
    13·2 answers
  • Which of the following options represents the form of a linear equation that should be used to write the equation of a line when
    13·1 answer
  • Find the value of BCF angle.​
    8·2 answers
  • The first jump in a unicycle high-jump contest is shown. The bar is raised 2 centimeters after each jump. Solve the inequality 2
    13·1 answer
  • PLEASE PLEASE HELP I HAVE OTHER WORK TO DO AND I NEED THIS ANSWER ASAP
    9·2 answers
  • What is the value of​ x? (trignonometry) WILL give branliest if its delivered in time
    8·1 answer
  • Can you show how you solve the problem thanks
    8·2 answers
  • Hey guys! a friend and I are confused and could really use the help. could you explain why? thanks!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!