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3 years ago

2) Choose the letter of the equation that best represents the problem. *

Mathematics

1 answer:

klemol [59]3 years ago

3 0

Answer: x + 3x = 11

Step-by-step explanation:

Two cities A and B

Both cities receive 11 inches of rainfall in total

Amount of Rainfall in inches received by city A = x

Amount of Rainfall in inches received by city B = 3x

Therefore given the details above, total rainfall is best expressed using the equation ;

Rainfall in city A + Rainfall in city B = 11 inches

x + 3x = 11

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3.<br> Find the measure of each angle. If 34 degrees is given below.

Anettt [7]

Answer:

a. 34

b 146

c 146

d. 34

e 146

f 146

Step-by-step explanation:

4 0

3 years ago

Write two different equations to describe each situation. a) You buy 3 identical shirts and 2 identical pairs of socks and spend

Ronch [10]

Answer:

3x + 2y = 38, 3a + 2b = 38

Step-by-step explanation:

An equation may be defined as a statement that shows two mathematical expressions to be equal. It is to equate one thing to another thing.

In the context, two different equations for the situations are :

i). Let the shirt be represented by x

And the socks be represented by y

Therefore, according to the question,

3x + 2y = 38

ii). Let the shirt be represented by a

And the socks be represented by b

Therefore, according to the question,

3a + 2b = 38

7 0

3 years ago

−2x=x^2 −6 from khan academy helppppppp please

masya89 [10]

This is in its simplest form.
There are no like terms to an operation

5 0

2 years ago

A survey showed that 77% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 22 adults are

Sveta_85 [38]

Answer:

The probability that no more than more than 11 of them need correction for their eyesight is 0.00512

No, 11 is not a significantly low low number of adults requiring eyesight correction .

Step-by-step explanation:

A survey showed that 77% of adults need correction for their eyesight.

If 22 adults are randomly selected, find the probability that no more than more than 11 of them need correction for their eyesight.

n =22

p = 0.77

q = 1-p = 1- 0.77=0.23

We are supposed to find $P(x\leq 11)$

$P(x\leq 11)=P(x=1)+P(x=2)+P(x=3)+.....+P(x=11)$

Formula : $P(x=r)=^nC_r p^r q^{n-r}$

$P(x\leq 11)=^{22}C_1 (0.77)^1 (0.23)^{22-1}+^{22}C_2 (0.77)^2 (0.23)^{22-2}+^{22}C_3 (0.77)^1 (0.23)^{22-3}+.....+^{22}C_{11} (0.77)^1 (0.23)^{22-11}$

Using calculator

$P(x\leq 11)=0.00512$

So, The probability that no more than more than 11 of them need correction for their eyesight is 0.00512

No, 11 is not a significantly low low number of adults requiring eyesight correction .

3 0

3 years ago

Is this all correct?

Dmitry_Shevchenko [17]

Yes seth your answers are all corret i seen them i did that paper too

6 0

3 years ago

Read 2 more answers