Sam buys
2 boxes of eggs costing £1.30 each
1 bottle of juice costing £2.60
3 baguettes
He pays with a £10 note and gets a 90p change.
Sam works out the cost of one baguette as £1.70

Is he correct?

You must show your working out.

Answer:

[tex]z = -0.8[/tex]

Step-by-step explanation:

Given

[tex]n = 32[/tex] --- samples

[tex]\mu = 18g[/tex] --- mean

[tex]\sigma =5g[/tex] --- standard deviation

[tex]x = 14g[/tex] --- observed value

Required

Find the standardized score

This is calculated as:

[tex]z = \frac{x - \mu}{\sigma}[/tex]

So:

[tex]z = \frac{14g -18g}{5g}[/tex]

[tex]z = \frac{-4g}{5g}[/tex]

[tex]z = \frac{-4}{5}[/tex]

[tex]z = -0.8[/tex]

The standardized score is -0.8

Answer:

Letter A. 50,000 + 100 > 75,000

pls give me a brainly's and I hope this answer can help you

Answer:

A. 50,000+100× = 75,000

Step-by-step explanation:

there you go that is the correct answer

 If Ed earns $100 from each extra deal, then $25,000 divided by $100 equals 250. Ed sold 250 computers last year. The correct equation is (A) 50,000 + 100X = 75,000. Base Salary + (Commission Fee x Computers Sold) = Total Income, where the unknown "X" is the number of computers sold by Ed.

Answer:

x = 12.206555

Step-by-step explanation:

10^2 + 7^2 = 149

Sqrt(149) = 12.206555 = x

x ≈ 12.2, 12

Therefore, the value of the hypotenuse [tex]x[/tex] is [tex]12[/tex].

What is the pythagorean theorem?

The Pythagorean theorem, or Pythagoras' theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle.

It states that the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides.

Here given that,

[tex]B=7,P=10[/tex]

As we know,

[tex]H^2=B^2+P^2[/tex]

Substitute the given values in the formula is

[tex]x^2=(7)^2+(10)^2\\\\x^2=49+100\\\\x^2=149\\\\x=\sqrt{149}\\\\x=12[/tex]

Hence, the value of the [tex]x[/tex] is [tex]12[/tex].

To know more about the Pythagorean theorem

https://brainly.com/question/14930619

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Answer:

Step-by-step explanation:

Do u see any similarities between the numbers? Both 12 and -4 have a variable(N). 8 and -7 dont have a variable, so u have to calculate them individually.

One thing to remember is just because there is a minus sign(-) or a plus sign(+) does not mean its addition or subtraction. its the value of the number. the sign to the left of the number is its value. so left of 12 is plus(+), so its a positive. left of 4 is a minus sign(-) so its a negative 4. lastly, left of 7 is minus sign(-), which means its negative 7. now u add.

lets add the variables first:

12n + (-4n) = 8n

add the regular numbers:

8 + (-7) = 1

so its 8n + 1

Answer:  D 28.26

Step-by-step explanation:

A=pi r^2    or pi times r squared.  R= half of the diameter so the radius of the circle is 3 cm.   If the radius is 3 cm 3^2= 9 and 9*3.14=28.26

Answer:

23333333333333

Step-by-step explanation:

first this then that then this then that

Answer:

11/2 is 5 1/2 this is which is 5 remainer 1 if you are a lower grade. If not then the complete form is 5.5

Step-by-step explanation:

Answer:

No. the correct answer is 0.195.

Step-by-step explanation:

Answer:

No the answer is 0.195

Step-by-step explanation:

Answer:

Step-by-step explanation:

think it would be b

Answer:

x = 45°

Step-by-step explanation:

We know that (2x + 45)° and x° are adjacent angles, so they add up to 180°.

(2x + 45) + x = 180

3x + 45 = 180

3x = 180 - 45

3x = 135

x = [tex]\frac{135}{3}[/tex]

x = 45°

Answer:

−0.965925826289068

Step-by-step explanation:

sin 255 = −0.965925826289068

Answer:

In similar figures, the angles are congruent, even if the sides are not. Notice that one angle in each pair of figures corresponds to an angle in the other figure. They have the same shape but not the same size

Answer:

it's 800 ft

Step-by-step explanation:

because again when you want to find the area of anything you mulipuly so

10 x 20= 200 then you get the 200 and times it by 4 so 200 x 4 = 800

hope this helps!

Answer:

Y=x*(6 feet/ 1 fathom)

Step-by-step explanation:

Answer:

2) 523.3 in²

Steps:

the given polygon is a heptagon

a regular heptagon's area = 7/4 × s² × cot(180°/7)

for the given heptagon

A = 7/4 × 12² × cot(180/7) ≈ 523.28 in² = 523.3 in² (rounded)

Step-by-step explanation:

A straight line adds up to 180°

m+3m=180°

4m=180°

m=45°

3m=45°

angle CBD=3(45)

=135°

Answer:

Step-by-step explanation:

Common ratio r = a₂/a₁ = -9/27 = -⅓

b(1) = 27

b(n) = b(1)rⁿ⁻¹ = 27(-⅓)ⁿ⁻¹

Answer:

44 + 45 = 99° divided by 2 = 49.5 (you can round to 49)

Answer:

Given circle:

The center is at (4, 0) and the radius is 5 units

Lets find the distance from (7, 2) to the center of the circle:

Since d < 5, the point (7, 2) lies inside the circle

Answer: Both are the same. Don't just copy this, actually try to understand it.⬇️

Step-by-step explanation:

x y

2 3

4 6

8 12

remember rise/over = y/x

Function 1 is rising 3 for every 2 to the right. that means 3/2 or x y

                                                                                                             2 3

I hope this helps

Answer:

17

Step-by-step explanation:

split the shape into 2 rectangles and find the area by multiplying the lenghts and withs of each rectangle then add their areas

Answer:

x = - 6, x = 6

Step-by-step explanation:

[tex] \frac{9}{x} = \frac{x}{4} \\ \\ x \times x = 9 \times 4 \\ \\ {x}^{2} = 36 \\ \\ x = \pm\sqrt{36} \\ \\ x = \pm 6 \\ \\ x = - 6, \: \: x = 6[/tex]

Answer:

c, a, b

...................

Answer:

x = 1.73

y = 2

Step-by-step explanation:

tan 30 = 1/x

0.57735 = 1/x

x = 1.73

sin 30 = 1/y

0.5 = 1/y

y = 2

Answer:

Getting an odd number would be 8/15 and the multiple of six would be 2/15

Answer:

find the length??

Step-by-step explanation:

you do understand that length means finding how long something is right?