All categories

3 years ago

Help please really needed

Mathematics

1 answer:

Anarel [89]3 years ago

7 0

Answer:

Either :

1/2 10x+1/2 20y+1/2 10z

5x+10y+5z

Step-by-step explanation:

You're just multiplying everything by 1/2

You might be interested in

Please help

taurus [48]

Answer:

Slope = 2

Step-by-step explanation:

(1,3) and (3,7)

m = (7-3)/3-1)

= 4/2

= 2

5 0

3 years ago

May someone do this for me I don’t under the top part only but you can do the bottom if you feel like it the first gets branlist

UNO [17]

For the first answer it would be y=mc+b

4 0

3 years ago

Is the number 935 a prime number yes or no

inysia [295]

Answer:

Step-by-step explanation:

This number has factors that are more than itself and one.

6 0

3 years ago

Read 2 more answers

X + 5y = 28 - x - 2y = -13

bazaltina [42]

Answer:

x=3

y=5

Step-by-step explanation:

x+5y=28 (i)

-x-2y=-13. (ii)

add equation 2 from equation 1

x+5y=28

-x-2y=-13

3y=15

y=5

put the value of y in equation 1

x+5y=28

x+5*5=28

x+25=28

x=28-25

x=3

8 0

3 years ago

An ounce of milk contains 20 milligrams of calcium and 60 micrograms of vitamin A.

vova2212 [387]

Answer:

10 ounces of milk and 50 ounces of orange juice

Step-by-step explanation:

Let the amount of milk be x ounces and the amount of orange juice be y ounces.

1. An ounce of milk contains 20 milligrams of calcium and 60 micrograms of vitamin A. Then x ounces of milk contain 20x milligrams of calcium and 60x micrograms of vitamin A.

2. An ounce of orange juice contains 40 milligrams of calcium and 10 micrograms of vitamin A. Then y ounces of orange juice contain 40y milligrams of calcium and 10y micrograms of vitamin A.

Calcium:

20x milligrams in milk

40y milligrams in orange juice

2,200 milligrams in total

Hence,

$20x+40y=2,200$