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
dangina [55]
2 years ago
12

Dave collects U.S. gold coins. He has collection of 48 coins. Some are $10 coins, and the rest are $20 coins. If the face value

of the coins $700, how many of each denomination does he have
Mathematics
1 answer:
andrew11 [14]2 years ago
7 0
Dave should slide some coins
You might be interested in
How do you do this help please
ddd [48]
It’s D! How do y’all not know that
4 0
2 years ago
The quadratic function: <img src="https://tex.z-dn.net/?f=y%3D-x%5E2-8x%2B1" id="TexFormula1" title="y=-x^2-8x+1" alt="y=-x^2-8x
pav-90 [236]

Answer:

  2)  (-∞, 17]

Step-by-step explanation:

The leading coefficient of the function is negative, so the parabola opens downward. The vertex will be a maximum, the upper end of the range. The lower end of the range will be -∞.

The vertex of the function lies on the axis of symmetry. The maximum can be found by evaluating the function at x=-4.

  y = -(-4)² -8(-4) +1 = -16 +32 +1 = 17

The range of the function is (-∞, 17].

8 0
2 years ago
6⋅[(32−8)÷4+2] What is the answer to this expession?
Nimfa-mama [501]

Answer:

48

Step-by-step explanation:

=6*[24/4+2]

=6*[6+2]

=6*8

=48

4 0
3 years ago
Find the area of the trapezoid.
marta [7]

Answer:

c

Step-by-step explanation:

7 0
3 years ago
Find the definding set of the function: y= √(1 - Cos3x ) / (1 + Sin4x )
ryzh [129]

y = \frac{\sqrt{\left( 1 - \cos (x\,\text{Rationalize}(0.0523599))\right) }}{\sqrt{\left( 1+\sin (x\,\text{Rationalize}(0.0698132))\right) }}

6 0
2 years ago
Other questions:
  • Why<br>do we use<br>quartz clock<br>​
    13·1 answer
  • The formula of the volume of a pyramid is 1/3BH, where B represents the area of the base of the pyramid and H represents the hei
    15·1 answer
  • Please help asap! Will give brainliest! Please answer correctly!
    8·2 answers
  • Suppose that a cylinder has a radius of r units, and that the height of the cylinder is also r units. The lateral area of the cy
    10·1 answer
  • Work out the area of a rectangle with base, <br> b<br> = 15mm and height, <br> h<br> = 12mm
    14·1 answer
  • What is the value of x?
    14·1 answer
  • 2. Amy had 0.87 liters of grape juice. Flora had 0.92 liters more. How much
    14·1 answer
  • Help please will give brainliest ​
    6·2 answers
  • 25. The heights of three-year-old boys are Normally distributed with a mean of
    5·1 answer
  • An airplane is flying from New York to Los Angeles.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!