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2 years ago

What are the names of the three eras identified on the x-axis in model 1 answers?

1 answer:

3 0

The names of the three eras identified on the x-axis in model 1 answers are Paleozoic, Mesozoic and Cenozoic. It can be seen from the graph that a mass extinction happened 444 million years ago in Paleozoic era, another happened 254 million years ago at end of Paleozoic era and marked the beginning of Mesozoic era. The final mass extinction happened 65 million years ago at end of Mesozoic era in which dinosaurs went extinct.

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2x + 3y -2 +(4y+6z) = ? Z= 4 Y=2 X=6

Butoxors [25]

$HEY THERE!!$

2x+3y-2+4y+6z

According to question.
x=6
y=2
z=4
So put these values in equation.

2×6+3×2-2+4×2+6×4
=> 12+6-2+8+24
=> 48

HOPE IT HELPS YOU.

7 0

2 years ago

Read 2 more answers

Ali had 3 times as many marbles as cho does. After cho gives 4 marbles to Ali, Ali has 18 more marbles than cho does. How many m

alexgriva [62]

Answer:

d. 15

Step-by-step explanation:

Let A and C be the initial number of marbles Ali and Cho have, respectively.

We are told that:

A = 3C [Ali had 3 times as many marbles as cho does]

We then discover that

C-4 = A-18 [After cho gives 4 marbles to Ali, Ali has 18 more marbles than cho does]

How many more marbles does cho have in the beginning?

We have 2 equations and 2 unknowns (A and C). That means we can likely rearrange one of the equations and isolate one unknown on the left, and then use that in the second equation.

The first equation already has one of the unknowns isolated (A) so I'll use that in equation 2.

Eq. 1: A = 3C

Eq. 2: C-4 = A-18

Use the definition of A from Eq. 1 (=3C) to replace A in Eq. 2:

Eq. 2: C-4 = A-18

C-4 = (3C)-18 [Replace A with 3C, as promised in E1q. 1]

-2C = -14

C=7

If C = 7, then from Eq. 1, A = 21

In the beginning, Ali has 21 marbles and Cho has 7.

Cho has 15 more marbles than Ali in the beginning.

a. 5

b. 9

c. 10

d. 15

5 0

1 year ago

one of the world's largest stained glass windows is at kennedy International Airport in New York. It is a rectangle with a heigh

zubka84 [21]

This is just a basic proportion problem. we are comparing the RATIO of the height to length. so the ratio would b
height height
-------- -------
length length . the numbers it gives us are 2 to 25 so substitute those in on the same side since they go together.
24 2
--- ---
x 25. they also told is that the height of the window is 24 so put that on the top too because its length. then just cross multiply to get 2x=600
then divide and get the answer of x=300

6 0

2 years ago

How many sixteenths are there in 3/8 ?

erma4kov [3.2K]

6 sixteenths are in 3/8

3 0

2 years ago

Read 2 more answers

Two trains leave the station at the same time, one heading west and the other east. The westbound train travels at 95 miles per

irinina [24]

Answer:

2.6 hr

Step-by-step explanation:

distance / rate = time

rate = 75 + 95 = 170 mile/hr

distance = 442 miles

442 miles / 170 mile/hr = 2.6 hr

7 0

1 year ago