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3 years ago

Please help ASAP ! Please help ASAP !

Mathematics

2 answers:

mihalych1998 [28]3 years ago

5 0

Answer:

5/7

Step-by-step explanation:

4/7+1/7 is 5/7 and 5/7 is its simplest form. Hope this helps :)

Delicious77 [7]3 years ago

3 0

Answer:

the answer is 5/7

Step-by-step explanation:

hope it helps:)

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Solve for x.

andre [41]

Answer:

A cuz x+6 is double x-3 so divide them and equate it to 2 you'd get x+6 = 2x-6

12=2x-x

8 0

3 years ago

More math help please

Vladimir [108]

C. it is an or problem so it goes below and it does not have the equal to so it is a dashed line.

7 0

4 years ago

-cz+6z= tz+83 solve for z

jenyasd209 [6]

Answer:

z = 83 /( -c+6-t)

Step-by-step explanation:

-cz+6z= tz+83

Subtract tz from each side

-cz+6z -tz= tz-tz+83

-cz+6z- tz=83

Factor out a z

z( -c+6-t) = 83

Divide by ( -c+6-t)

z( -c+6-t)/( -c+6-t) = 83 /( -c+6-t)

z = 83 /( -c+6-t)

7 0

3 years ago

Robert spun the fair spinner shown below 1,060 times,

prisoha [69]

Answer:

About 400 times

Step-by-step explanation:

Given

$n = 1060$

See attachment for spinner

Required

Determine the number of times an outcome of 1, 3 or 8 is expected

First, calculate the theoretical probability of 1, 3, or 8

This is calculated as:

$Pr = P(1) + P(3) + P(8)$

The spinner is divided into 8 equal segments and each outcome appears once.

So, we have:

$Pr = \frac{1}{8}+\frac{1}{8}+\frac{1}{8}$

Take LCM and add

$Pr = \frac{1+1+1}{8}$

$Pr = \frac{3}{8}$

So, the expected number of times (E) is:

$E = Pr * n$

$E = \frac{3}{8} * 1060$

$E = \frac{3* 1060}{8}$

$E = \frac{3180}{8}$

$E = 397.5$

Approximate

$E = 398$

This means about 400 times

8 0

3 years ago

A zoo has a black rhinoceros that weighs 18 times as much as an average-size chimpanzee. The rhinoceros weighs 2,250 pounds.

Vinvika [58]

Answer: 125 pounds

Step-by-step explanation:

Let's first represent the weight of the black rhinoceros and chimpanzee with variables. We will assign r for the rhinoceros and c for the chimpanzee.

In the question, we were given that the weight for a black rhinoceros is 18 times as much as an average-size chimpanzee. This makes 18 times the chimpanzee's weight equal to the rhinoceros' weight.

Let's put this into an equation.

$r=18*c$

Now, let's put in the values we know to find the weight of the chimpanzee (i.e., c). We know the weight of a rhinoceros (represented by r) is 2250 pounds, so we can replace it for r in the equation.

$2250=18*c$

To solve this equation, we can divide both sides by 18 to get c by itself and know what it's value is.

$\frac{2250}{18}=\frac{18*c}{18}$

We can remove the $\frac{18}{18}$ from the right side to be left with c. We can also divide 2250 by 8 to get the weight of an average-size chimpanzee.

$c=\frac{2250}{18}\\ c=125$

Hence, an average-size chimpanzee weighs 125 pounds.

8 0

2 years ago