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eimsori [14]
3 years ago
12

An ice cream stand uses the expression 2+ 0.5x to determine the cost in Dollars of an ice cream cone that has x amount of scoops

of ice cream
how much does an ice cream with 5 scoops cost
Mathematics
1 answer:
Charra [1.4K]3 years ago
7 0
4.5 is the answer  (which may be $4.50 since we are speaking in terms of money)
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In a two digit number, the tens digit is 2 less than the units digit multiplied by three. The reversed number is half the origin
Papessa [141]

Answer:

73

Step-by-step explanation:

Original number: XY

x = 3y - 2

10y + x = (10x + y) / 2 + 1/2

substitution: 10y + 3y - 2 = 13y - 2 = (10 * (3y - 2) + y) / 2 + 1/2

* 2 both sides and simplify: 26y - 4 = 31y - 19

31y - 26y = -4 + 19

5y = 15

y = 3

x = 7

Original number: 73

8 0
2 years ago
A tutor earns $12 plus $4 for every hour he works. How much money would the tutor earn after working four hours?​
bearhunter [10]

Answer: $28

Step-by-step explanation: The tutor will earn 28 dollars after working for four hours.

12 + 4 ( 4 ) = 28

***If you found my answer helpful, please give me the brainliest, please give a nice rating, and the thanks ( heart icon :) ***

4 0
3 years ago
A pile of 55 coins, consisting of nickels and dimes, is worth $3.90. find the number of each.
xz_007 [3.2K]
<span>N + D = 55 coins (1) (N stands for nickels, 5N + 10D = 390 cents (2) D stands for dimes) Simplify (2) by canceling the factor 5 in both sides: N + 2D = 78 (3) Subtract eq(1) from eq(3). You will get D = 78 - 55 = 23. Answer. 23 dimes and 55-23 = 32 nickels. Check. 23*10 + 32*5 = 390 cents</span>
8 0
3 years ago
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Consider the function f(x) = 4x2 + 5. Find the value of f(x) when x = 2 and select the correct answer below. A. 13 B. 21 C. 69 D
egoroff_w [7]
Substitute 2 for x

f(2)=4(2)^2+5
f(2)=4(4)+5
f(2)=16+5
f(2)=21

answer is B
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3 0
3 years ago
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Degger [83]
C. A linear function looks like one line, an absolute value function looks like 2 straight lines that look like they’re reflected, an exponential function looks like a curved line on one side of the axis, and a quadratic function looks like a parabola (shown).
4 0
3 years ago
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