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exis [7]
3 years ago
14

Tessa received $50 from her Grandma for her birthday. She decided to put this money away and save an additional $12 per week so

she can buy a $398 tablet. How many weeks will it take her to save? Please click both the equation and the solution.
Mathematics
1 answer:
sweet [91]3 years ago
4 0

Answer:

29 weeks.

Explanation:

398-50= 348

348 divided by 12= 29

She has to save up for 29 weeks to get her tablet.

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Given:
Triangle:
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Rectangle:
length = x
Width = 6 ft

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Area of a rectangle = Surface Area - Area of a Triangle
A = 150 ft² - 12 ft² = 138 ft²

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6 0
3 years ago
Which equation represents the circle described? (in picture)
Sedaia [141]
You are right. In circle equation we have =r² so the correct answer will be C od D.  But we have to calculate the center of a circle.

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Complete the square:

x^2-8x+a^2\implies a=\dfrac{8x}{2x}=4\implies x^2-8x+4^2\\\\\\y^2-6y+b^2\implies b=\dfrac{6y}{2y}=3\implies y^2-6y+3^2

And we have:

(x^2-8x)+(y^2-6y)=-24\\\\(x^2-8x+4^2)-4^2+(y^2-6y+3^2)-3^2=-24\\\\
(x-4)^2+(y-3)^2-16-9=-24\\\\(x-4)^2+(y-3)^2-25=-24\quad|+25\\\\\boxed{(x-4)^2+(y-3)^2=1}

So the answer is C (the same left side of equation).
6 0
3 years ago
Find the measure of ∠COB in the figure. answers: A) 24° B) 48° C) 72° D) 132°
jasenka [17]

Answer: 48

Step-by-step explanation: COB and DOA are vertical angles. This means the two of them have the same measure. Because we know the measuremen of DOA, we can easily find the measuremen for COB since these angles are the same, so COB is 48 degrees.

7 0
3 years ago
A triangle has three angles 1x, 11x and 8x. as described below. Find the value of x
Rom4ik [11]

Answer:

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4 0
2 years ago
Brian works 40 hours a week. He spends 40% of his time helping customers, 13% doing paperwork, and the remainder performing othe
MissTica

40% helping customers + 13% doing paper work = 53% of his time.

This means 100% - 53% = 47% of his time he is doing other tasks.


7 0
3 years ago
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