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USPshnik [31]
4 years ago
9

A) Increase £101 by 16% Show working B) Decrease £36 by 21% Show working

Mathematics
1 answer:
Wittaler [7]4 years ago
7 0
A)
If 100 increase to 116
so (101×116)/100 = 117.16
answer is £117.16

B)
If 100 decrease to 79
so (36×79)/100 = 28.44
answer is £28.44
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If you work for 5 hours and you make $65, how many hours would you have to work to earn $143
wlad13 [49]
To earn 143 dollars you must work 11hrs


5 0
3 years ago
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It costs $315 to book a DJ for 3 hours. It costs $525 to book the same DJ for 5 hours. Write an equation that represents the cos
seraphim [82]

Answer:

  y = 105x

Step-by-step explanation:

$315 ÷ 3 = $105 per hour

$525 ÷ 5 = $105 per hour

Constant of Proportionality is $105 in both cases.

y = kx

y = 105x

4 0
3 years ago
Factor completely 4x^2 − 32
Blababa [14]

Answer: 4(x+2\sqrt{2})(x-2\sqrt{2})

Step-by-step explanation:

We can first take out the common factor of 4, as both 4x² and -32 are divisible by 4.

4(x^2-8)

From here, we can assume that x²-8 is a difference of two squares even though 8 is not a perfect square.

<em>For review, a difference of two squares </em>a^2-b^2 can be factored into (a+b)(a-b).

4(x^2-8)\\4(x+\sqrt{8})(x-\sqrt{8})\\4(x+2\sqrt{2})(x-2\sqrt{2})

4 0
2 years ago
Graph matching 50 Points!
Sloan [31]

Step-by-step explanation: To find the graphs, we look at the problem and the graph. Let's do it step-by-step.

No. 1 is y = 1/2.

To find the corresponding graph, we look closely at the graph.

Look at the 2nd graph. Do you see a dot by 1/2? I do!

So, No. 1 matches with the 2nd graph.

No. 2 is y = 2.

Like I said, we look closely at the graph.

Look at the 4th graph. Do you see a dot by 2? I do!

So, No. 2 matches with the 4th graph.

No. 3 is y = 4.

Now, we look closely at the graph.

Look at the 3rd and the 4th graph. Do you see a dot by 4? I do!

So, No. 3 matches with the 3rd and the 4th graph.

Lastly, No. 4 is y = 1/4.

Let's look closely at the graph.

Look at the 1st graph. Do you see a dot by 1/4? I do!

So, No. 4 matches with the 2nd graph.

Therefore, our answers are:

No. 1 matches with the 2nd graph

No. 2 matches with the 4th graph.

No. 3 matches with the 4th and the 3rd graph.

No. 4 matches with the 1st and the 2nd graph.

Download pdf
5 0
3 years ago
Read 2 more answers
Gloria works at least 10 hours per week but no more than 25 hours each week. She earns 9.00 an hour. Her weekly earnings depend
emmasim [6.3K]

Answer:

[90,225] notation or 135 range

Step-by-step explanation:

10x9=90

25x9=225

[900,2250] notation or 1350 range

7 0
3 years ago
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