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almond37 [142]
3 years ago
11

Pam and Jena, working together, can weed the garden in 9 hours. Working alone, Jena takes three times as long as Pam. How long d

oes it take Pam to weed the garden alone?
Mathematics
1 answer:
Ghella [55]3 years ago
4 0

Answer:

2 hours and 15 minutes

Step-by-step explanation:

9 hours divided by 4 is 2 hours and 15 minutes

Then you can multiply 2 hours and 15 minutes by 3 to get 6 hours and 45 minutes which is Jena's time weeding the garden alone.

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Area addition and subtraction
telo118 [61]

Answer:Area of the shaded region is 73.6 cm^2

Step-by-step explanation:

The circle is divided into two sectors. The Smaller sector contains the triangle. The angle that the smaller sector subtends at the center of the circle is 80 degrees. Since the total angle at the center of the circle is 360 degrees, it means that the angle that the larger sector subtends at the center would be 360 - 80 = 280 degrees

Area of a sector is expressed as

Area of sector = #/360 × πr^2

# = 280

r = 5 cm

Area of sector = 280/360 × 3.14 × 5^2

Area of sector = 61.06 cm^2

Area of the triangle is expressed as

1/2bh = 1/2 × 5 × 5 = 12.5

Area of the shaded region = 61.06 +

12.5 = 73.6

7 0
3 years ago
Evaluate the expression [(12x2.4) -(8.4*0.6)] +27-5.1
MariettaO [177]

Answer:45.66

Step-by-step explanation: Simplify the expression.

Hope this helps you out! ☺

6 0
3 years ago
Point T is at (-3, 8). What are the coordinates of T' after R(y-axis) o R(x-axis)?
Whitepunk [10]

Given:

Point is T(-3,8).

To find:

The coordinates of T' after R(y-axis)\circ R(x-axis).

Solution:

We know that, R(y-axis)\circ R(x-axis) means the figure reflected across the x-axis then reflected across y-axis.

If a figure reflected across x-axis, then

(x,y)\to (x,-y)

T(-3,8)\to T_1(-3,-8)

If a figure reflected across y-axis, then

(x,y)\to (-x,y)

T_1(-3,-8)\to T'(-(-3),-8)

T_1(-3,-8)\to T'(3,-8)

Therefore, the required point is T'(3,-8).

4 0
3 years ago
Help me on this plz
Andrews [41]

Answer: $467.21

Step-by-step explanation:

8% of 600 = 48

600 - 48 = 552

8% of 552 = 44.16

552 - 44.16 = 507.84

8% of 507.84 = 40.6272

8% of 507.84 ≈ 40.63

507.84 - 40.63 = 467.21

7 0
3 years ago
What is the common difference for this arithmetic sequence?<br> -6, -2, 2, 6, 10, ...
FrozenT [24]

Answer:

common difference: t2-t1

-2-6

-8

5 0
3 years ago
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