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jenyasd209 [6]
2 years ago
5

Matt started doing extra chores around the house and his allowance changed from $30 per week to $40 per week. What is the percen

t of change in Matt's allowance?
25% increase
20% increase
33.3% increase
10% increase
Mathematics
2 answers:
labwork [276]2 years ago
6 0

Answer:

33.3% increase

Step-by-step explanation:

Change: final- initial

= 40 - 30 = 10

%change

10/30 × 100

100/3 %

Approximately 33.33%

slega [8]2 years ago
3 0

Answer:

33.3%

Step-by-step explanation:

Let's say the percent change is x%. Then the equation is:

30 + x% * 30 = 40

Subtract 30 from both sides:

x% * 30 = 10

Divide by 30:

x% = 10/30 = 1/3

Remember that % simply means "out of 100", so:

x/100 = 1/3

Multiply both sides by 100:

x = (1/3) * 100 = 33.3%

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2 years ago
Please help solve quick
RoseWind [281]

Answer:

see below

Step-by-step explanation:

3x^2 + 17x +10 =0

(3x+   ) ( x+   ) =0

We need to factor 10  = 2*5  or 1*10

They are positive since we have all positive terms

3*5 = 15+2 = 17

The 5 needs to multiply the 3 so it goes on the outside

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That leaves the 2 on the inside

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5 0
3 years ago
In the accompanying diagram of ABC ca is extended to D, m∠ABC = 70 and m∠BCA =50 Find m∠DAB
zvonat [6]

Answer:

<em>120 degrees</em>

Step-by-step explanation:

Find the diagram attached.

From the diagram;

Interior angles are m∠BCA and m∠ABC

Exterior angle is m∠DAB

The sum of interior angle of the triangle is equal to exterior

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Given

m∠ABC = 70

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m∠DAB = 120 degrees

<em>Hence the measure of m∠DAB is 120 degrees</em>

6 0
2 years ago
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