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natulia [17]
3 years ago
11

Devante has a lunch account in the school cafeteria. His

Mathematics
1 answer:
AfilCa [17]3 years ago
6 0

Answer:

35.50= 3x+5x+15.5

Step-by-step explanation:

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Emily has 8 coins in her purse totaling 50 cents. The only kinds of coins she has are nickels and dimes. How many nickels does E
makvit [3.9K]
5x + 10y = 50
x + y = 8

x = 8 - y
5*(8-y) + 10y = 50
40 - 5y + 10y = 50
10y - 5y = 50 - 40
5y = 10
y = 2

x + y = 8
x + 2 = 8
x = 8 - 2
x = 6

She has 6 nickels and 2 dimes
3 0
3 years ago
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A bag contains 4 yellow marbles and 6 green marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then
Pie

\frac{6}{10}  \times  \frac{4}{9}  \\  =  \frac{24}{90}  \\  =  \frac{4}{15}

Answer is 2nd option, 4/15

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2 years ago
Write the next three terms in the pattern. What is each pattern rule?<br><br> +6, -12, +18, -24, ...
natali 33 [55]

Answer: 30, -36, 42

Step-by-step explanation:

So basically the pattern is just the next number that is a multiple of six, but every other number is negative. 6 is 6 times 1, -12 is 6 times -2, 18 is 6 times 3, -24 is 6 times -4, 30 is 6 times 5, -36 is 6 times -6, and 42 is 6 times 7

7 0
2 years ago
Someone please help me go get BRAILIEST!!!!!!!!!
Oliga [24]
This answer would be letter C because if you simplify 49/56 divided by seven you get a grand total of 7/8.
5 0
3 years ago
Find the area and the circumference of a circle with radius 7 cm.
natka813 [3]

<em>answers \\ area = 153.86 \:  {cm}^{2}  \\ circumference = 43.96 \: cm \\  \\ solution \\ radius = 7cm \\ area \: of \: circle = \pi {r}^{2}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  \: 3.14 \times  {7}^{2}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 3.14 \times 49 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  153.86 \:  {cm}^{2}  \\ circumference \: of \: circle = 2\pi \: r \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 2 \times 3.14 \times 7 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 43.96 \: cm \\ hope \: it \: helps \\ good \: luck \: on \: you r \: assignment</em>

5 0
3 years ago
Read 2 more answers
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