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Alexxandr [17]
3 years ago
12

A jar contains nickels and dimes. There are 20 coins in the jar and the total value is 1.40. How many nickels and dimes are in t

he jar?
Mathematics
1 answer:
kolbaska11 [484]3 years ago
6 0
That is not possible.
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a ladder leans against the sufe of a house. the angle of elevation of the ladder is 70 degrees when the bottom of the ladder is
nekit [7.7K]

Answer:

≈ 35.1 ft

Step-by-step explanation:

The model is a right triangle with ladder being the hypotenuse and the angle between the ground and the ladder is 70°

Using the cosine ratio, with l being the length of the ladder.

cos70° = \frac{adjacent}{hypotenuse} = \frac{12}{l} ( multiply both sides by l )

l × cos70° = 12 ( divide both sides by cos70° )

l = \frac{12}{cos70} ≈ 35.1 ( to the nearest tenth )

The ladder is approx 35.1 ft long

4 0
3 years ago
Two binomials that are factors of x^2+8x+12
alina1380 [7]

Answer:

(x+2) (x+6)

Step-by-step explanation:

x^2+8x+12

What 2 numbers multiply together to give you 12 and add together to give you 8

2*6 = 12

2+6 = 8

(x+2) (x+6)

5 0
3 years ago
Ayo can someone help with this I dont get it​
Zielflug [23.3K]

Answer:

D. is the answer

Step-by-step explanation:

the side lengths always have to be equal so 6+8 = 10    and 10 is equal to 10

that means it makes a right triangle

5 0
2 years ago
If you have x, and your equation is 5/8x + 1/5x=99, what is x
noname [10]

\frac{5}{8x}  +  \frac{1}{5x}  = 99 \\  \\  \frac{33}{40x}  = 99  \\ \\ 40x = 33 \times 99 \\  \\ x = 81.675
8 0
3 years ago
What is the volume of a shape that has 13h,13l and 10w
creativ13 [48]

Answer:

<em>1690</em>

Step-by-step explanation:

V = LWH

V = 13 * 10 * 13

V = 1690

8 0
3 years ago
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