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vagabundo [1.1K]
3 years ago
15

10. Which number sentence shows the number of marbles that are either red or blue?

Mathematics
1 answer:
nexus9112 [7]3 years ago
7 0

Step-by-step explanation:

I think answer A should be the correct answer

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¿Cuál (es) de las siguientes sumas es(son) iguales a 1? (todos los numeros despues de la coma tienen una linea abajo)
Elis [28]

Answer:

1.

Step-by-step explanation:

0.36 + 0.64 = 1

8 0
2 years ago
There are 10 less red skittles than orange skittles in the bag. The orange skittles are also twice the number of red skittles. F
Dmitry_Shevchenko [17]

20 skittles double the number of red

the red skittles have 10 skittles the orange skittles have 20 so its additon

20

+

10

------

30

6 0
3 years ago
Read 2 more answers
Luke earns $50 for doing his chores each month. He washes cars in his neighborhood for $15 each. Last month he earned a total of
Furkat [3]

Answer:

He washed 4 cars.

Step-by-step explanation:

1. The variable that was unknown x amount of cars washed.

2.The equation I used was 110-50=15x

3. To solve this you subtract the 50$ from 110$ you get sixty dollars you do that to take out what he earned for his allowance. Then your equation is 60=15x so you divide each side by 15 and when you do that x=4

8 0
3 years ago
18.194 rounded to the nearest hundredths
ehidna [41]
18.19
-you're welcome
5 0
3 years ago
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Solve the linear system of equations using the linear combination method.<br><br> {8a−4b=205a−8b=62
11Alexandr11 [23.1K]
Sorry I am a little late...

a = -2

b = -9

Here is how to solve the problem. 

First thing I did was multiply the first equation by -2 so that we can eliminate the the b. After you multiply it by -2, your new equation is -16a + 8b = -40. 

You leave the second equation alone and all you do is combine like terms. So -16a+5a is -11. And you eliminate the b. Then you're going to do -40+62 which is 22. So it's -11a=22 and then you have to solve for a. What I did was I multiplied the whole thing by minus to turn the a positive. So then it's 11a=-22. Pretty easy, the final step is to simplify. -22/11 is -2. ;D 

So there you have your first answer. 

a = -2 

Now we're going to use the first answer to help us find b. 

For the second equation, all you're going to do is plug in that a. 

5 (-2)-8b=62 

-10 - 8b = 62

Now we move the -10 to the other side...

-8b = 62 + 10 

-8b = 72

Multiply the whole thing by negative once again to turn the b positive.

Now we have 8b = -72 

The final step is to simplify. -72/11 = -9

b = -9 

Hope this makes sense! Also I had the same question on my test and I got it right. :)

6 0
3 years ago
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