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algol13
3 years ago
8

João has 7 apples if he gives joana 3 and matilde 4 how many did he have?

Mathematics
1 answer:
mamaluj [8]3 years ago
3 0
He had 7 and now he has 0.
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It cost mrs sapranaro $245 for her and 6 people to take a day long guided tour of the Everglades how much does the guided tour c
Serga [27]
It cost 35$ for each  person to go
8 0
3 years ago
Read 2 more answers
Which of the following is an example of the associative property?
Mariulka [41]
Hey there!

Let's look at this one answer at a time. 

2(5 - 3) = 10 - 6 would classify as the distributive property because 2 times 5 is 10 and 2 times negative 3 equals negative 6. 

-7 + (19 + 5) = (-7 + 19) + 5 would classify as an example of the associative property of equality because both sides of the equation simplify to equal the same number, 17.

11 + (6 + 8) = 11 + (28 + 6) is not a property of equality because it simplifies out to be 25 = 45 which is not true. 25 can never be equal to 45. It's no solution.

1/3 * 3 = 1 would be a great example of the inverse property of multiplication because one third is the reciprocal of three. In other words the equation could look like this:  1/3 * 3/1 = 3/3 = 1

Hope that helps! Thanks for using Brainly!
7 0
3 years ago
Read 2 more answers
Use the intermediate value theorem to find the value of c such that f(c) = M. f(x) = x^2 - x + 1 text( on ) [1,8]; M = 21 c =
DanielleElmas [232]

Answer:

c = 5

Step-by-step explanation:

Given

f(c) = M

f(x) = x^2 - x + 1

Interval: [1,8]

M = 21

Required

Find c using Intermediate Value theorem

First, check if the value of M is within the given range:

f(x) = x^2 - x + 1

f(1) = 1^2 - 1 + 1

f(1) = 1

f(x) = 8^2 - 8 + 1

f(x) = 57

1 \le M \le 57

1 \le 21 \le 57

M is within range.

Solving further:

We have:

f(c) = f(x) = M

f(x) = 21

Substitute 21 for f(x) in f(x) = x^2 - x + 1

21 = x^2 - x + 1

Express as quadratic function

x^2 - x + 1 - 21  = 0

x^2 - x - 20  = 0

Expand

x^2 + 4x - 5x - 20

x(x+4)-5(x+4)=0

(x - 5)(x+4) = 0

x - 5 = 0 or x + 4= 0

x = 5 or x = -4

The value of x = -4 is outside the Interval: [1,8]

So:

x = 5

f(c) = f(x) = M

f(c) = f(5) = 21

By comparison:

c = 5

4 0
3 years ago
Mai's younger brother tells her that 10/7 is equal to square root of 2. Mai knows this can't be right,
Kryger [21]

Answer:

10/7 is a simple fraction, and √2 cannot be written as a simple fraction. So, they are not the same.

Step-by-step explanation:

10/7 is a number that has a numerator and a denominator.

Suppose √2 = 10/7, then √2 can also be written as a number that has a numerator and a denominator.

Since this is not the case, 10/7 cannot be the same as √2.

3 0
3 years ago
O COUNTING AND PROBABILITY
valina [46]

Answer:

a. Odds = \frac{3}{7}

b. Odds = \frac{7}{3}

Step-by-step explanation:

Given

n(Black) = 7

n(Grey) = 2

n(White) = 1

n(Total) = 10

Solving (a): Odds against winning

Since, the arrow must stop at black, then

The odds against winning is calculated as thus:

Odds = \frac{n(Total) - n(Black)}{n(Black)}

Odds = \frac{10 - 7}{7}

Odds = \frac{3}{7}

Solving (b): Odds in favor of winning

Since, the arrow must stop at black, then

The odds is calculated as thus:

Odds = \frac{n(Black)}{n(Total) - n(Black)}

Odds = \frac{7}{10 - 7}

Odds = \frac{7}{3}

4 0
3 years ago
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