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Agata [3.3K]
3 years ago
14

Kat has 19 coins, all quarters and dimes, that are worth a total of $4. The system of equations that can be used to find the num

ber of quarters, q, and the number of dimes, d, she has is shown.
q + d = 19
0.25q + 0.1d = 4
How many quarters does she have?

4
5
14
15
Mathematics
2 answers:
sineoko [7]3 years ago
7 0
The answer will be 14

pishuonlain [190]3 years ago
6 0
14 is the answerrrrr
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Idk how to solve these questions
Anuta_ua [19.1K]
Of means multiply

3/5 *n=30

3/5 5/3 cancels than you do 30 *5/3 =50

The answer is 50 you can check your answer by doing 3/5 *50=150/5 or 30 so it's correct .
5 0
3 years ago
Read 2 more answers
Reem earns $16 per hour for the first 8 hours of her shift. For each additional hour she works beyond the first 8 hours, she ear
RideAnS [48]

The single shift worked by Reem is 16 hours long.

Total earned = $320

First 8 hours (earning per hour) = $16

Additional hours = $24 per hour

Let the total number of hours worked = m

The Number of hours after 8 hours = m - 8

Representing the scenario with an equation :

(16 × 8) + (24 × (m - 8)) = 320

128 + 24m - 192 = 320

-64 + 24m = 320

24m = 320 + 64

24m = 384

Divide through by 24

m = 384 / 24

m = 16

Hence, the shift is 16 hours long.

Learn more : brainly.com/question/18109354

8 0
2 years ago
The length of a rectangle is 3 times twice the width. The perimeter is 36. What are the side lengths?
Svetllana [295]

Answer & Explanation:

For this question, you need to figure out the length and the width because the area is directly related to them (A = l*w).

What we do know is that the perimeter is 36 inches. Since the perimeter is equal to P = 2l + 2w, we can say:

P = 36 = 2(3 + 2w) + 2(w), where the length l is 3 + 2w

Solve for w first, then solve for l. Use these values to find the area.

Pls, choose me as brainliest!

8 0
2 years ago
(-2+8i)(3-10i) <br> Step by Step
irina [24]
(-2+8i)x(3-10i)

-2 x 3 - 2 x (-10i) +8i x 3- 8i x 10i
-6+20i+24i - 80i ^2
-6+20i+24i - 80 x (-1)
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5 0
3 years ago
Of the 60 seeds that you plant, 80% germinate. How many seeds germinate?
Alinara [238K]
Im not sure but I think its 48, excuse me if im wrong.
8 0
3 years ago
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