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Vera_Pavlovna [14]
3 years ago
11

Adalyn earns $42 for mowing lawns for 6 hours. If Adalyn charges at the same rate, how many hours will it takes her to earn $63

Mathematics
2 answers:
inessss [21]3 years ago
5 0
2 hours is how long it would take
ki77a [65]3 years ago
5 0
6hours is $42
x hours is $63

63 x 6 = 378
378/42 = 9

it will take her 9 hours
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Answer the following questions. (a) 25% of what number is 16? (b) 85% of 40 is what?
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Answer:

A is 64 and b is 34

Step-by-step explanation:

6 0
2 years ago
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Kensington City Cafe recently introduced a new flavor of coffee. They served 28 grande cups
Dmitrij [34]

Answer:

jumbo 23 oz, grande 16 oz

Step-by-step explanation:

Use g for grande and j for jumbo

The first equation: 28g + 33j = 1207

The second equation: 28g + 53j = 1667

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   28g + 53j = 1667

-   28g + 33j = 1207

Equal 20j = 460

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Put 23 in for j in either equation and solve for g:

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5 0
2 years ago
B. Subtract polynomials: (3x – 5 – 7x2) – (–2 + 6x2 – 5x)
Lapatulllka [165]

Answer:

(3x-5-7x^{2} )-(-2+6x^{2} -5x)

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step\:3:-13x^{2} +8x-3

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7 0
3 years ago
3. Determine if the following triangle is a right triangle or not using the Pythagorean Theorem Converse. Triangle with side len
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Answer:

false

Step-by-step explanation:

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5 0
1 year ago
If the diagonals of a parallelogram are equal, then show that it is a rectangle.
Harlamova29_29 [7]

Answer:

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Proof : in △ACB and △BDA

AC=BD  ∣ Given

AB=BA ∣ Common

BC=AD ∣ Opposite sides of the parallelogram ABCD

△ACB ≅△BDA∣SSS Rule

∴∠ABC=∠BAD...(1) CPCT

Again AD ∥ ∣ Opposite sides of parallelogram ABCD

AD ∥BC and the traversal AB intersects them.

∴∠BAD+∠ABC=180∘ ...(2) _ Sum of consecutive interior angles on the same side of the transversal is 

180∘

From (1) and (2) ,

∠BAD=∠ABC=90∘

∴∠A=90∘ and ∠C=90∘

Parallelogram ABCD is a rectangle.

4 0
2 years ago
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