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3 years ago

PLEASE PLEASE PLEASE HELP I WILL MARK BRAINLIEST!!!!!!!

Mathematics

1 answer:

AlexFokin [52]3 years ago

3 0

Answer:

The answer is A

Step-by-step explanation:

Ribosomes, the endoplasmic reticulum, and the Golgi apparatus are all organelles. They are also all involved in the making, packaging, and shipping of proteins. Ribosomes help in the production of proteins during translation.

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A farmer has 500 acres to plant acres of corn, x, and acres of cotton, y. Corn costs $215 per acre to produce, and cotton costs

hodyreva [135]

Answer:

x + y = 500

215x + 615y = 187,500

Step-by-step explanation:

The first equation can show the amount of land. The farmer has 500 acres to plant corn, x, and cotton, y.

x + y = 500

The second equation can show the cost. The farmer has $187,500 to invest when corn costs $215 per acre and cotton costs $615 per acre.

215x + 615y = 187,500

The system of equations is

x + y = 500

215x + 615y = 187,500

4 0

3 years ago

Donna earns twice as much money per month as omar does. Omar earns $209 more than alex. Together, the three workers earn 3320 pe

Blizzard [7]

Omar makes $882.25 a month

Donna = 2x
Omar = x
Alex = x - 209

4x - 209 = 3320
4x = 3529
x = $882.25

3 0

4 years ago

What function is vertically stretched by a factor of 3 and translated 4 units right from the parent function

Neporo4naja [7]

The correct answer is:

B) 3log₅(x-4).

Explanation:

To stretch a function by a factor of 3, we multiply the function by 3. This eliminates A and D.

To translate a function 4 units right, we add -4 to the variable before anything else is applied to it; this eliminates C.

In choice B, the log function is multiplied by 3, which gives us our vertical stretch; and the x is subtracted by 4 before anything else is applied to it, so it is translated 4 units right.

4 0

3 years ago

Read 2 more answers

The ratio of Wei Ling's age to Wei Xuan's age 5 years ago was 2: 5. In 9 years

Archy [21]

Answer:

15 years old

Step-by-step explanation:

Start by defining the variables that we are going to use throughout our working:

Let the current age of Wei Ling and Wei Xuan be L and X years old respectively.

Next, form equations using the given information.

5 years ago

Wei Ling: (L -5) years old

Wei Xuan: (X -5) years old

Given that the ratio of Wei Ling's age to that of Wei Xuan's is 2: 5,

$\frac{ L - 5}{X - 5} = \frac{2}{5}$

Cross multiply:

2(X -5)= 5(L -5)

Expand:

2X -10= 5L -25

2X= 5L -25 +10

2X= 5L -15 -----(1)

9 years time

Wei Ling: (L +9) years old

Wei Xuan: (X +9) years old

Given that the ratio of Wei Ling's age to that of Wei Xuan is 3: 4,

$\frac{L + 9}{X + 9} = \frac{3}{4}$

Cross multiply:

3(X +9)= 4(L +9)

Expand:

3X +27= 4L +36

3X= 4L +36 -27

3X= 4L +9 -----(2)

Let's solve using the elimination method.

(1) ×3:

6X= 15L -45 -----(3)

(2) ×2:

6X= 8L +18 -----(4)

(3) -(4):

6X -6X= 15L -45 -(8L +18)

0= 15L -45 -8L -18

0= 7L -63

7L= 63

L= 63 ÷7

L= 9

Substitute L= 9 into (1):

2X= 5(9) -15

2X= 45 -15

2X= 30

X= 30 ÷2

X= 15

Thus, Wei Xuan is 15 years old now.

6 0

3 years ago

A box contains 9 red, 5 green, and 5 blue marbles. You reach in and remove 3 marbles all at once. Find the probability that the

Dafna1 [17]

It would be 3/19. Cause you add all and that would be denom.

4 0

3 years ago