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4vir4ik [10]
3 years ago
15

Pls help urgently extra points and mark brainlist easy reading

Mathematics
2 answers:
Burka [1]3 years ago
6 0

Answer:

Fail :b

Step-by-step explanation:

Jlenok [28]3 years ago
5 0
Fail or not succeed
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claudia bought a television at a 25% discount . the original price of the television was $349. there wasa 7% sales tax. how much
Scrat [10]
349 * .75 = $261.75
$261.75 * 1.07 = $280.07
6 0
3 years ago
Which is another way to check the sum 52+23+10+78
kotykmax [81]
52+23=75
10+78=88 
88+75=163
that's one way 

7 0
3 years ago
For brainiest:):):):):):):):)
Nookie1986 [14]

Answer:

Step-by-step explanation:

original price = 20

3 0
3 years ago
Old McDonald has some chickens and some cows. He counted 56 heads and 116 legs. How many chickens and how many cows does old McD
Elza [17]

Answer: old McDonald has 54 chickens and 2 cows.

Step-by-step explanation:

Let x represent the number of chickens that old McDonald have.

Let y represent the number of cows that old McDonald have.

He counted 56 heads. A chicken and a cow has one head each. It means that

x + y = 56

He counted 116 legs. A chicken has 2 legs and a cow has 4 legs. It means that

2x + 4y = 116 - - - - - - - - -1

Substituting x = 56 - y into equation 1, it becomes

2(56 - y) + 4y = 116

112 - 2y + 4y = 116

- 2y + 4y = 116 - 112

2y = 4

y = 4/2 = 2

x = 56 - y = 56 - 2

x = 54

6 0
3 years ago
Solve sin2x + 2sinx = 0 for 0 ≤ x < 2π. ...?
IgorC [24]
Sin 2 x + 2 sin x = 0
2 sin x cos x + 2 sin x = 0 / : 2
sin x cos x + sin x = 0
sin x ( cos x + 1 ) = 0
sin x = 0,  cos x + 1 = 0,  cos x = - 1;
Answer:
x = 0,  or x = π
3 0
3 years ago
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