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2 years ago

A gardener uses 3 of a liter of water to water 7 of a garden.

Mathematics

1 answer:

arsen [322]2 years ago

8 0

Im not fully correct but i think you just multiply 3 x7= 21

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Use the distributive property to simplify the expression 7(x-20)

grigory [225]

Multiply "7" by each term inside the parentheses.

7(x-20) = 7x-140

answer: 7x-140

6 0

2 years ago

Read 2 more answers

Does the order pair, (2,3) satisfy the following function y=-3x-2 Yes,No

grin007 [14]

Answer:

Step-by-step explanation:

The function y=-3x-2 does not go through the ordered pair (2,3).

3 0

2 years ago

On a number line 7.29 and -7.29 are the same point. true or false

zlopas [31]

Answer should be False

8 0

2 years ago

12.what is the probability that a boy and a girl chosen randsomly will be seniors?

zhenek [66]

$\frac{\textbf{1}}{\textbf{20}}$

Step-by-step explanation:

Probability= $\frac{\text{number of favourable outcomes}}{\text{total number of outcomes}}$

Probability for a randomly chosen girl to be senior= $\frac{\text{number of senior girls}}{\text{total number of girls}}$

Probability for a randomly chosen girl to be senior= $\frac{7}{8+11+9+7}=\frac{7}{35}=\frac{1}{5}$

Probability for a randomly chosen boy to be senior= $\frac{\text{number of senior boys}}{\text{total number of boys}}$

Probability for a randomly chosen girl to be senior= $\frac{9}{10+7+10+9}=\frac{9}{36}=\frac{1}{4}$

For two independent events,

Probability for both event 1 and event 2 to take place= $\text{probability of event 1} \times \text{probability of event 2}$

Since choosing boys and girls is independent,

Probability for both boy an girl chosen to be senior= $\text{probability for boy to be senior}\times\text{probability for girl to be senior}$

Probability for both boy and girl chosen to be senior= $\frac{1}{5} \times \frac{1}{4} = \frac{1}{20}$

So,required probability is $\frac{1}{20}$

3 0

2 years ago

Is (4,-5), (0,-5), (11,30), (17,10) a function

Ratling [72]

Answer:

Yes, it is a function

Step-by-step explanation:

A function is a set of ordered pairs where there is no two of the same domain. The domain is the first coordinate which is x. In this case, the x coordinates are 4, 0, 11, 17. There is no two of the same domain so this is a function.

Hope This Helps :)

4 0

2 years ago