Hi there, can anyone help me with this question?

A bag contains 1p, 2p and 5p coins. 2/5 of the bag are 2p coins. There are twice as many 1p coins than 5p coins in the bag. There are 630 coins in total. Work out the number of 5p coins in the bag. ​

Answer:

2x-2= -21

Step-by-step explanation:

Answer:

-9.5

Step-by-step explanation:

We can create an equation to represent this, where [tex]n[/tex] is the missing value.

[tex]2n - 2 = -21[/tex]

Now we can solve for [tex]n[/tex] by isolating it on one side of the equation.

Add 2 to both sides:

[tex]2n - 2 + 2 = -21+2\\\\2n = -19[/tex]

Divide both sides by 2:

[tex]2n\div2 = -19\div2\\\\n = -9.5[/tex]

Hope this helped!

Step-by-step explanation:

2(xy)^3

= 2(0.6 * 5)^3

= 2(3)^3

= 2 * 27

= 54

Answer:

54

Step-by-step explanation:

since x= 0.6 and y=5 you replace them in 2(xy)^3

then it would be 2((0.6)(5))^3

first multiply the numbers inside 0.6 times 5 =3

second multiply 3 three times =27

lastly multiply 27 times 2 to get finally 54

hope this helped :)

Answer:

m=[tex]\frac{23}{3}[/tex] simplest form if you need it as a decimal its m=7.6

Step-by-step explanation:

Answer:

85

Step-by-step explanation:

Answer:

m = 1.2

Step-by-step explanation:

12m = 14.4

Divide each side by 12

12m/12 = 14.4/12

m = 1.2

m = 1.2  is the answer

because..

12m = 14.4

Divide each side by 12

12m/12 = 14.4/12

m = 1.2

hope this helped ヾ(•ω•`)oヾ(•ω•`)o

Answer:

2:45

Step-by-step explanation:

Answer:

3a+2b+6

Step-by-step explanation:

Combine like terms 6a and -3a to get 3a

Everything else stays the same, so the answer is 3a+2b+6

Answer:

yes

Step-by-step explanation:

ny shape that has a line of symmetry is symmetrical shape.means the shape can be folded into two equal halves.

Answer: -5x+3x²+5

Step-by-step explanation:

 (-2x+4x²+5)-(x²+3x)

=-2x+4x²+5-x²-3x

=-2x-3x+4x²-x²+5

=-5x+3x²+5

=3x²-5x+5 (if you are required to write in standard form)

Answer:

[tex]LO = OT = 8cm[/tex]

Step-by-step explanation:

Given

LT = 16cm

Required

Determine LO and OT

First, we have:

[tex]LO + OT = LT[/tex]

From the question, we understand that O is the middle of LT

This implies that LO = OT

Substitute OT for LO in the above formula

[tex]OT + OT = LT[/tex]

[tex]2OT = LT[/tex]

Divide both sides by 2

[tex]OT = \frac{1}{2}LT[/tex]

Substitute 16cm for LT

[tex]OT = \frac{1}{2} * 16cm[/tex]

[tex]OT = 8cm[/tex]

Recall that LO = OT

So;

[tex]LO = OT = 8cm[/tex]

Answer:

-40

Step-by-step explanation:

2 times negative 2 is 4 plus 4 is 8 times negative 5 is -40

Answer:

[tex]x=3/2=1.5[/tex]

Step-by-step explanation:

So we have the equation:

[tex]2x-2=4x-5[/tex]

And we want to solve for x. To do this, we need to first isolate the x-variable. So, start by adding 2 to both sides:

[tex](2x-2)+2=(4x-5)+2[/tex]

The 2s on the left cancel:

[tex]2x=4x-3[/tex]

Now, subtract 4x from both sides:

[tex](2x)-4x=(4x-3)-4x[/tex]

The 4xson the right cancel:

[tex]-2x=-3[/tex]

Now, divide both sides by -2.

[tex]\frac{(-2x)}{-2}=\frac{-3}{-2}[/tex]

The negatives cancel. The 2s on the left cancel. Therefore:

[tex]x=3/2=1.5[/tex]

Answer:

Step-by-step explanation:

Given the expression, 130.715 ft ÷ 4.022 ft, we are to find its quotient.

Converting to fraction first 130.715 ft = 130,715/1000 and 4.022 ft = 4022/1000

130.715 ft ÷ 4.022 ft = 130,715/1000 ÷ 4022/1000

= 130,715/1000 * 1000/4022

= 130,715/4022

= 32.500 ft

Hence the quotient of the expression to the correct level of precision is 32.500 ft

Answer:

32.500ft or 32.5ft

Step-by-step explanation:

Answer:

s = 5.48 in

Step-by-step explanation:

Area of square = s²

30 in² = s²

s = √30

s = 5.48 in

Answer:

Approximately 5.48 inches.

Step-by-step explanation:

Area of a square formula: Area = length^2

Area here = 30 in^2

30 = length^2

Take square root of both sides to get rid of the square.

[tex]\sqrt{30\\}[/tex] = length

length = 5.47722558

The approximate side length of the frame is about 4.58 inches.

Answer:

Trying to find 85% of 21 is the same thing as multiplying 0.85 by 21.

0.85 * 21 = 17.85.

Hope this helps!

Answer:

The answer is 17.85!

Step-by-step explanation:

Hint: if you don't remember how to convert percentages into decimals, just remove the percent sign and shift the decimal point two places to the left.

Answer:

just ask your question and post it and somebody will help with the answer

Step-by-step explanation:

Using rounding concepts, it is found that 325.623 rounded to the nearest tenth is 325.6.

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A similar problem is given at https://brainly.com/question/13241511

Answer:

c = 7

Step-by-step explanation:

Solve for 'c'

-7c - 5 = -9c + 9

-5 -9 = -9c + 7c

-14 = -2c

c = 7

Therefore 'c' equals 7

Answer:

c=7

Step-by-step explanation:

-7c-5=-9c+9

Add 9c to each side

-7c+9c-5=-9c+9c+9

2c -5=9

Add 5 to each side

2c-5+5 = 9+5

2c = 14

Divide each side by 2

2c/2 = 14/2

c=7

Answer:

-2

Step-by-step explanation:

The opposite of 2 is - 2 because it is the distance way away from 0, just in the opposite side.

Hope this helped!

Answer:

48

Step-by-step explanation:

-12 x -4 = 48 (When we multiply two negetive numbers, the product becomes positive )

Answer:

48

Step-by-step explanation:

i did the quiz

Answer:

B and D

Step-by-step explanation:

A can't be correct because the length of a segment is always positive. B is correct because we have to take the absolute value of the distance between endpoints to find the length of the segment. C is not correct because AC is obviously longer than BC so how would AB + AC = BC? D is correct because it models the Parts Whole Postulate.

Answer:

kindly see attached picture

hope it helped you:)

Answer: a) -27, b) 35, c) 14

Step-by-step explanation:

a) When a positive number is multiplied by a negative number, your answer is negative, and since we know that 9 × 3 = 27, and that this figure has to be negative (since 9 is negative), the answer is -27.

b) Multiplying two negative numbers gives a positive number, and since 7 × 5 = 35, the answer is positive 35 (as both 7 and 5 in the original question are negative).

c) Follows just like b.

Answer:

4 terms

Step-by-step explanation:

First rearrange the expression from largest to smallest:

-9x^4-3x^2+5x+2

Now count how many terms their are,

-9x^4=1 term

-3x^2=2 terms

5x=3 terms

2=4 terms

Therefore, there are 4 terms in the expression

Answer:

(- 4, 2 )

Step-by-step explanation:

Under a reflection in the x- axis

a point (x, y )→ (x, - y ), thus

(- 4, - 2 ) → (- 4, 2 )

The image of the coordinate after a reflection over the x-axis is (-4, 2).

When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is taken to be the additive inverse. The reflection of point (x, y) across the x-axis is (x, -y).

The given coordinate point is (-4, -2).

The rule of reflection is (x, y)→(x, -y)

Here, (-4, -2)→(-4, -(-2))

= (-4, 2)

Therefore, the image of the coordinate is (-4, 2).

To learn more about the reflection over x-axis visit:

https://brainly.com/question/15175017.

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Answer:

8.726%

Step-by-step explanation:

Purchase price = $45.23

Current selling price of stock = $52.00

Intended increase before sale = 25%

25% of purchase price :

100% + 25% = 125%

125% of $45.23

1.25 × 45.23 = $56.5375

$56.5375 is the price at which Mason intends to sell the stock after purchase.

If current price = $52.00;

What percentage increase above the current price is $56.5375.

Let the percentage increase = p

Therefore,

p% of $52 = $56.5375

(p/100) * 52 = 56.5375

52p/100 = 56.5375

52p = 5653.75

p = 5653.75 / 52

P = 108.72596

Therefore p = 108.72596% - 100%

The percentage increase above the current price is thus :

8.72596%

= 8.726%

Step-by-step explanation:

From graph of g(x), it is observed that y - intercept is 6.

Therefore,

[tex]6 = 2(3)^{0} + k[/tex]

[tex]k \: = 4[/tex]

The value of k is equal to 4

Function, in mathematics, is an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Given here the functions  f(x)=2(3)ˣ and g(x)=f(x)+k when x=0 we get

f(0)=2  and from the graph we can clearly observe that g(0)=6

Thus putiing in the values we get k=4

Hence, The value of k is equal to 4

Learn more about functions here:

https://brainly.com/question/28303908

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Answer:

x = 30    Quadrilateral

x = 20    Triangle

Step-by-step explanation:

Quadrilateral

A quadrilateral has a sum of 360 degrees for its interior angles.

So

x + 2x + 4x + 5x = 360       Find the sum of the 4 angles

12x = 360                           Divide by 12

12x = 360/12                      

x = 30                                 Answer

Triangle

A triangle has an interior angle sum of 180 degrees.

2x + 5x  + (x + 20) = 180         Remove the brackets

2x + 5x  + x + 20 = 180           Add the angles

8x + 20 = 180                           /subtract 20 from both sides

8x = 180 - 20

8x = 160                                 Divide by 8

x = 160/8

x = 20    

Answer:

The answer to this is 3x+8

Answer:

x + 4

Step-by-step explanation:

Factor the polynomial.

6 (x+4)^2

Answer:

a

Step-by-step explanation: