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SpyIntel [72]
2 years ago
7

Amy buys 22 envelopes for 13p each and pays with a £5 note.

Mathematics
1 answer:
katovenus [111]2 years ago
3 0
Hi there lol have a great day
You might be interested in
What is the are of the following figure if AC = 12, AD = 16.
Degger [83]

Answer:

116

Step-by-step explanation:

∆ABC

A = ½bh = ½ × 12 × 6 = 36

∆ACD

A = ½bh = ½ × 16 × 7 = 56

∆ADE

A = ½bh = ½ × 16 × 3 = 24

ABCDE  

A = ∆ABC + ∆ACD +∆ADE = 36 + 56 + 24 = 116

The area of the figure is 116 square units.

7 0
3 years ago
STEAM: The boiling pint of water is affected by changes in elevation. Use the expression of -2A/1000 where a represents the alti
damaskus [11]

Answer:

A) -10°F

Step-by-step explanation:

Given that:

Boiling point of water gets affected when there is a change in the elevation.

Expression to represent the temperature i.e. boiling point w.r.to altitude A is given by the equation:

Temperature in ^\circ F = \frac{-2A}{1000}

Given that, the altitude, A = 5,000 feet

To find:

The number of degrees Farenhite at which the boiling point of water will change.

Solution:

Here, we are given the expression:

Temperature in ^\circ F = \frac{-2A}{1000}

And value of altitude, A = 5,000 feet

Let us put the value of A in the equation and let us find the value of temperature in ^\circ F.

Temperature in ^\circ F =

\frac{-2\times 5000}{1000}\\\Rightarrow -2\times 5\\\Rightarrow \bold{-10^\circ F}

Therefore, the answer is:

A) -10°F

5 0
3 years ago
PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
Ierofanga [76]

Answer:

t=5

Step-by-step explanation:

Hello There!

the given angles are vertical angles therefore they are congruent

so 110=4t+90

step 1 subtract 90 from each side

110-90=20

now we have

20=4t

step 2 divide each side by 2

20/4=5

so were left with

t=5

7 0
3 years ago
Find the real solution(s) of the equation 1/6x^3 = -36
ratelena [41]

Answer:

Below.

Step-by-step explanation:

1/6x^3 = -36

Multiply both sides by 6:

x^3 = -216

x = ∛(-216)

= -6.

3 0
2 years ago
cook books have recipes that are designed for 4 people. if a particular recipe in a cook book calls for 3 eggs, how many eggs wo
kolezko [41]

Answer:

10.5

Step-by-step explanation:

If the recipe is designed for 4 people than you would need 6 eggs for 8 people (8 is twice as many as 4 so you need twice as many eggs.) similarly, 14 is 3.5 times as many as 4 (14/4=3.5) so you would need 3x3.5=10.5 eggs.

Not sure how that works but I hope this helped!

4 0
3 years ago
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