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nika2105 [10]
2 years ago
10

I need urgent help and maybe please explain how to do it? I will appreciate it

Mathematics
1 answer:
melisa1 [442]2 years ago
4 0

Answer:

It will take 12.5 days for Alejandra to catch up with Javier and they both will have travelled 800m

Step-by-step explanation:

Alejandra "catching up" implies that they will both have travelled the same distance

Therefore,

Let y represent the distance when Alejandra will catch up with Javier

Since both equations have the same y-value (distance):

24x+500 = 12x+650

24x - 12x = 650 - 500

12x = 150

x = 12.5

It will take 12.5 days for Alejandra to catch up with Javier

Next, put the amount of time into any of the 2 equations to find what the distance is:

24x + 500 = y

24 (12.5) + 500 = y

y = 800

800m is the distance travelled when Alejandra catches up with Javier

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Divide 380 among A, B and C in such a way that B gets 30 more than A and C gets 20 more than B. ​
Readme [11.4K]

Answer:

A = 100 B = 130 C = 150

Step-by-step explanation:

Translated into a system of equations:

A+B+C = 380

B = A+30

C = B + 20

So we find B from the last one:

B = C-20

Plug it in the second one:

C-20 = A+30

A = C-50

Plug it in the first:

C-50 + C-20 + C = 380

3C - 70 = 380

3C = 450

C=150

A = C - 50 = 150 - 50 = 100

B = C - 20 = 150 - 20 = 130

6 0
2 years ago
Read 2 more answers
Find each sum use symbols to tell if the sum is greater (>)than or less than (<)1. Please answere 1-16 I will say thanks o
Soloha48 [4]
I'm just going to write out the answers.
1. 3/6 < 1
2. 5/4 > 1
3. 8/10 < 1
4. 5/8 < 1
5. 7/9 < 1
6. 9/10 < 1
7. 5/8 < 1
8. 11/8 > 1
9. 32/35 < 1
10. 33/36 < 1
11. 13/15 < 1
12. 45/54 < 1
13. 11/10 > 1
14. 52/46 > 1
15. 19/21 < 1
16. 78/80 < 1

Hope this helps! :)
4 0
3 years ago
The volume of the polyhedron is ______ cm3.
PSYCHO15rus [73]

Answer:

50.80 cm^3

Step-by-step explanation:

the polyhedron is a rectangular pyramid

Volume of a rectangular pyramid = 1/3 x ( width x height x length)

1/3 ( 4 x 5 x 3) = 20 inches

we need to convert inches to cm

1 in = 2.54 cm

20 x 2.54 = 50.80 cm^3

8 0
3 years ago
3. A big league pitching coach tries to limit his pitchers to 110 pitches per game. If the pitcher has
krek1111 [17]
110 minus 52 is 58 so the answer would be 58 more pitches
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3 years ago
Three classes. Of third graders are going to the zoo. Ms. Noels class has 10 students. Mr. Grubbs class has 9 students, and Ms.
liq [111]

Answer:

If the children divide evenly onto 3 buses, there will be 11 children on each bus

Step-by-step explanation:

Add all 3 classes to ind total amount of students

Ms. Noels class has 10 students

Mr. Grubbs class has 9 students

Ms. Ackerman's class has 14 students

<u>Total Students:</u> 10 students + 9 students + 14 students

33 total students

Dividing 33 students in 3 busses is 33 / 3 which equals 11

4 0
2 years ago
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