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Answer:

7

Step-by-step explanation:

Let x = number of 20p coins

10+50+20x=200        10p + 50p + x(20p) = 200p    (100p=1 pound)

60 + 20x = 200

subtract 60 from each side

20x=140

divide both sides by 20

x=140/20=14/2=7

x=7  James has 7 20p coins

The first thing we need to do is to find the linear equation that defines the total cost of the taxi ride as a function of the number of miles traveled.

We will find that z = 24.

We know that the taxi charges a fixed fee of $2.90, plus $1.75 per mile.

So if you travel for z miles, the total cost will be:

[tex]c(z) = \$2.90 + \$1.75 \cdot z[/tex]

Now that we have this linear equation if we know that the total fare was $44.90, then we have:

[tex]c(z) = \$2.90 + \$1.75 \cdot z = \$44.90[/tex]

Now we just need to solve the above equation for z:

[tex]\$2.90 + \$1.75 \cdot z = \$44.90\\\\\$1.75 \cdot z = \$44.90 - \$2.90 = \$42.00\\\\z = \$42.00/\$1.75 = 24[/tex]

Then we can see that she traveled for 24 miles.

If you want to learn more, you can read:

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Answer:

80

Step-by-step explanation:

80 because 8x10=80 and also 1x80=80

The measure of angle GXI from the given circle is equal to 60°.

A circle is a two-dimensional figure formed by a set of points that are at a constant or at a fixed distance (radius) from a fixed point (center) on the plane. The fixed point is called the origin or center of the circle and the fixed distance of the points from the origin is called the radius.

From the given figure, through the Centre 12 lines are passing and dividing the central angle.

We can write the measure of angle subtended by a single arc as -

θ = 360°/12

θ = 30°

So, the measure of ∠GXI = 2θ

= 2×30°

= 60°

So, ∠GXI = 60°

Therefore, the measure of ∠GXI is equal to 60°.

To learn more about the circle visit:

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Answer:  72

Step-by-step explanation: Its in the middle

Answer:

twice

Step-by-step explanation:

1/2 x 2 = 1

then you have a leftover 1/4

Answer:

x=-2

Step-by-step explanation:

[tex]\sqrt{x+3}+4=5[/tex]

subtract 4 from each side

[tex]\sqrt{x+3} +4-4=5-4[/tex]

square both sides

[tex]\sqrt{x+3}^2=1^2[/tex]

so we have

[tex]x+3=1[/tex]

subtract 3 from each side

[tex]x+3-3=1-3[/tex]

so our answer is [tex]x=-2[/tex]

Complete question:

On the package for a certain brand of spinach seeds there is a guarantee that, if the printed instructions are followed, 63% of planted seeds will germinate. A random sample of 9 seeds is chosen. If these seeds are planted according to the instructions, find the probability that 4 of them germinate.

Answer:

[tex]P(x = 4) = 0.1376[/tex]

Step-by-step explanation:

Given

[tex]n = 9[/tex]

[tex]p = 63\%[/tex] --- proportion that germinates

[tex]p = 0.63[/tex]

Required

P(x = 4)

This question follows a binomial distribution:

[tex]P(x) = ^nC_x*p^x*(1-p)^{n-x[/tex]

When x = 4;

[tex]P(x = 4) = ^9C_4*0.63^4*(1-0.63)^{9-4[/tex]

[tex]P(x = 4) = ^9C_4*0.63^4*(0.37)^5[/tex]

[tex]P(x = 4) = 126*0.63^4*0.37^5[/tex]

[tex]P(x = 4) = 0.13763895392[/tex]

[tex]P(x = 4) = 0.1376[/tex]

Answer:

The common factors for 3,12 are −3,−1,1,3 - 3 , - 1 , 1 , 3 .

Step-by-step explanation:

Answer:

[tex]\frac{1}{14}[/tex]

Step-by-step explanation:

First time drawing:

Total outcome is 8

Favorable outcome is 2

The probability that the first marble drawing in random is blue is

[tex]\frac{2}{8}[/tex] = [tex]\frac{1}{4}[/tex]

Second time drawing (with no replacement):

Total outcome is 7  (8 - 1 = 7)  

Favorable outcome is 2

The probability that the second marble drawing in random is yellow is

[tex]\frac{2}{7}[/tex]

The probability that the first marble is blue and the second marble is yellow is [tex]\frac{1}{4}[/tex] × [tex]\frac{2}{7}[/tex] = [tex]\frac{2}{28}[/tex] = [tex]\frac{1}{14}[/tex]

Answer:

C

Step-by-step explanation:

There is absolutely no correlation between class size and number of absences.

Answer:

look it up on the internet.

Step-by-step explanation:

Answer:

She'll have $661 in the account in 2022.

Step-by-step explanation:

Compound interest:

The amount of money earned in compound interest after t years is given by the following equation:

[tex]A(t) = A(0)(1+r)^t[/tex]

In which A(0) is the initial amount and r is the interest rate, as a decimal.

Rachael started off with $400. It earns 3% interest each year.

This means that [tex]A(0) = 400, r = 0.03[/tex]

So

[tex]A(t) = A(0)(1+r)^t[/tex]

[tex]A(t) = 400(1+0.03)^t[/tex]

[tex]A(t) = 400(1.03)^t[/tex]

She wants to know how much money she'll have in the account in 2022.

17 years after 2005, which means that this is A(17). So

[tex]A(17) = 400(1.03)^{17} = 661[/tex]

She'll have $661 in the account in 2022.

Answer:

heres how to solve it

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Answer:

4 and thank u or the free points

Step-by-step explanation:

Answer:

what's your question???

Answer:

23,400

Step-by-step explanation:

30 times 30 times 26= 23,400

Answer:

a translation of (-2,4)

Step-by-step explanation:

Answer:

Answer A dûmb asš got me wrong

Step-by-step explanation:

Answer:4

Step-by-step explanation:

Answer:

ee flamingo

Step-by-step explanation:

Answer:

...

Step-by-step explanation:

Answer:

∠Z & ∠K

Step-by-step explanation:

Answer: 500 were sold for the carousel

Step-by-step explanation:

If each ticket is then multiply 100x5 which is 500.

Answer:

the answer is 475

Step-by-step explanation:

because you have 4 full dots and a dot that is 3/4 full one dot is 100 tickets so the 4 full dots

saungelique3 avatar

= 400 and the dot that is 3/4 full is 75

saungelique3 avatar

this is because 3/4 of 100 is 75

saungelique3 avatar

400+75=475

Answer:

Line l: y=4

Line m: y=-2x+4

Line n: y=x-1

Line p: x=-4

Hope this helps!

2  is 1 of 6 numbers on each side 1/6

Since its 3 rolls youd multiply it by 3

1/6x3 would be 3/18

Answer: The Probability of rolling a 2 on 3 throws would be 3/18

Answer:

The answer is 0.45

Step-by-step explanation:

0.75-0.1-0.2=0.45

Answer:

Amy and Victor: 1 [tex]\frac{4}{9}[/tex]

Cal and Beth: [tex]\frac{7}{10}[/tex]

Beth and Victor [tex]\frac{5}{6}[/tex]

Step-by-step explanation:

Just multiply fractions by LCD