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3 years ago

Benjamin has 16 coins in his wallet consisting of quarters and dimes. The total worth of

Mathematics

1 answer:

Anna007 [38]3 years ago

8 0

Answer:

6 dimes & 10 quarters

Step-by-step explanation:

Here are the two equations. The first one deals with the numbers of coins. The second one deals with the values of the coins.

d + q = 16

0.1d + 0.25q = 3.1

Solve the first equation for d and plug into the second equation.

d = 16 - q

0.1(16 - q) + 0.25q = 3.1

1.6 - 0.1q + 0.25q = 3.1

0.15q = 1.5

q = 10

d + q = 16

d + 10 = 16

d = 6

Answer: 6 dimes & 10 quarters

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The surface area of the rectangular prism can be found using the expression 6x exponent 3 + 4x exponent 2 + 12x. if the value of

kupik [55]

Answer:

234 cm²

Step-by-step explanation:

Given expression to represent the surface area of the rectangular prism is $6x^{3} +4x^{2} +12x$

The given value of x is 3.

Now, finding value of expression by sustituting value of "x" as given.

Surface area of the rectangular prism = $6x^{3} +4x^{2} +12x$

Surface area of the rectangular prism= $6\times 3^{3} +4\times 3^{2} +12\times 3$

∴ Surface area of the rectangular prism= $6\times 27+ 4\times 9+ 12\times 3$

Surface area of the rectangular prism= $162+36+36= 234\ cm^{2}$

∴ Surface area of the rectangular prism= 234 cm²

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4 years ago

A cricketer's average score for 6 innings is 12 runs. what must he score in his next innings to make his average 13?

Inessa05 [86]

The answer is 19 since 19-6

8 0

3 years ago

One interior angle of a parallelogram is 65 degrees . If the remaining angles have measures of a,b and c, what is the value of a

Irina18 [472]

Answer:

65 + 65 = 130

360 - 130 = 230 degrees

5 0

3 years ago

the expression 5n+2 can be used to find the total cost in dollars of bowling where n is the number of games bowled and 2 represe

tia_tia [17]

5(3) + 2
15 + 2
17
Your answer is 17

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3 years ago

2. Given < MCP = 65°, find the measurement of arc MP , arc MRP and < MRP.

iren2701 [21]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

We know that the Angle subtended by an arc on centre of the circle is double as that of Angle subtended by the same arc on the circumference (boundary) of the circle

So,

$\sf \angle MCP = 2\angle MRP$

$\sf65 \degree = 2 \angle MRP$

$\sf\angle MRP = 65 \degree \div 2$

$\sf\angle MRP = 32.5 \degree$

7 0

3 years ago

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