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Papessa [141]
3 years ago
12

Use the three steps to solve the problem.

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
5 0

Answer:

17

Step-by-step explanation:

Let d be dimes

q represent quarters

d = q + 10

10d + 25q = 345 cents

Substitute for "d" and solve for "q";

10(q+10) + 25q = 345

35q + 100 = 345

35q = 245

q = 7

Since d = q+10, d = 17

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Ariane borrows $200 on a 2−year loan. She is charged 5% simple interest per year. How much interest is she charged for 2 years?
il63 [147K]

Answer:

Interest charged over two years: $20

Total amount: $220

Step-by-step explanation:

The formula for simple interest is A = P ( 1 + rt ).

A = 200 ( 1 + (0.05 * 2))

A is the total amount ( interest + principle )

A = 220

P is the principle ( initial amount deposited )

P = 200

R refers to rate (in percent)

R = 0.05

T = time period (in years)

T = 2

4 0
3 years ago
PLEASE ANSWER! I don't understand this problem.
ziro4ka [17]

Answer:

The Domain is {3,2-1,0} Range {7,4,2}

Step-by-step explanation:

It is a function because there is one value of y for every x value.

8 0
3 years ago
Read 2 more answers
Molly played an online game three times. Her scores were 5.5, -3.6, and 12.8. What was her average score for three games?
Ivahew [28]

In order to find the solution you must calculate the mean, or the average by adding the numbers together and dividing by how many numbers there are.

5.5 + -3.6 + 12.8 = 14.7

14.7 ÷ 3 = 4.9

4.9 is Molly's average score.

Hope this helps! <3


4 0
4 years ago
Solve x/2 - 3 = 7. 5 10 20 40
earnstyle [38]
<span> x/2 - 3 = 7
Add 3 to both sides
x/2=10
Multiply 2 on both sides
Final Answer: B. 20</span>
3 0
3 years ago
Read 2 more answers
(50 points + Brainliest)
elena-s [515]

Answer:

x = 8

Step-by-step explanation:

If the line are parallel (those are the ones that dont cross) and a third line crosses both the parallel lines, you get the set up shown in your diagram. Which has EIGHT angles in it. But there's only two measures for all eight of these angles. Four of them are all equal to each other (and the other four all equal to each other) And the two numbers add up to 180°

Here 7x + 12 and 12x - 28 are a couple of the angles that are EQUAL TO each other.

7x + 12 = 12x - 28 Solve.

Subtract 7x from both sides.

12 = 5x - 28 add 28 to both sides.

40 = 5x divide by 5 on both sides.

40/5 = x

8 = x

8 0
3 years ago
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