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Mekhanik [1.2K]
3 years ago
10

2. Yumi takes hour to complete 50 math problems. Eric is able to complete 48

Mathematics
2 answers:
Lesechka [4]3 years ago
6 0

Answer:

Yumi

Step-by-step explanation: because she is 2 ahead of Eric

8090 [49]3 years ago
3 0

Answer:yumi is faster by two questions Step-by-step explanation:

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Joey wants to build a rectangular garden. He plans to use a side of a river for one side of the garden, he will not place fencin
NikAS [45]

We let x and y be the measures of the sides of the rectangular garden. The perimeter subtracted with the other side should be equal to 

                                                   2x + y = 92

The value of y in terms of x is equal to,

                                            y = 92 – 2x

The area is the product of the two sides,

                                                                        A = xy

Substituting,

                                                            A = x (92 – 2x) = 92x – 2x2

Solving for the derivative and equating to zero,

                                                            0 = 92 – 4x  ; x = 23

Therefore, the area of the garden is,

<span>                                                            A = 23(92 – 2(23)) = 1058 yard<span>2</span></span>

5 0
3 years ago
What is the sum of the first 20 terms of the series 3 + 14 + 25 + 25 + 36 +
Fynjy0 [20]

Answer:

S _{20} = 2150

Step-by-step explanation:

a _{1} = 3 \\ a _{2} = 14 \\ d = a _{2} - a_{1}  = 14 - 3 = 11 \\ n = 20

S _{n} =  \frac{n}{2} (2a + (n - 1)d) \\  \\ S _{20} =  \frac{20}{2} (2(3) + (20 - 1) \times 11) \\  \\ S _{20} = 10 \times (6 + 19 \times 11) \\ S _{20} = 10 \times (6 + 209) \\ S _{20} = 10 \times 215 \\ S _{20} = 2150

6 0
3 years ago
Read 2 more answers
An electronics store reduced the price of a TV from $1200 to $1140. What was the percent of decrease?
Sunny_sXe [5.5K]

Answer:

5%

Step-by-step explanation:

4 0
2 years ago
In this figure, ∠a and ∠b are A. complementary. B. vertical. C. equal. D. supplementary.
Aleks [24]
Sorry I don't see a picture. But...

If they add up to 90 degrees, they are complimentary

If they add up to 180 degrees ( a straight line) they are supplementary.

If they are vertical, they will be on either side, like two v's ><
4 0
3 years ago
Read 2 more answers
An executive in an engineering firm earns a monthly salary plus bonus of 5700 dollars. If she earns a total of 91400 dollars per
Ray Of Light [21]

Answer:

Step-by-step explanation:

From the problem statement, we can setup the following equation:

12S + 5700 = 91400

where S is the monthly salary. Solving for S will give us the answer:

12S = 85700

S = 7141.67

6 0
3 years ago
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