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max2010maxim [7]
3 years ago
7

PLEASE ANSWER & EXPLAIN [ 100 POINTS]

Mathematics
2 answers:
Gnom [1K]3 years ago
8 0

Answer:

Step-by-step explanation:

1st row: 10 marbles

each following row has one less

2nd row: 9

3rd row: 8

4th row: 7

5th row: 6

6th row: 5

so there are 5 marbles

WITCHER [35]3 years ago
6 0

Answer:

Step-by-step explanation:

Given the first line has 10 marbles and each following line has one less, the general equation is the nth line will have 10-(n-1) marbles.

So the sixth line has 10-(6-1) = 5 marbles.

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Write an expression describing her earnings for working hours
Licemer1 [7]

Answer:

you need to explain what the question is

Step-by-step explanation:

4 0
2 years ago
A store is having a sale on jelly beans and trail mix. For 3 pounds of jelly beans and 2 pounds of trail mix, the total cost is
Nata [24]

the cost for each of jelly beans and each pound of trail mix is $2.5 and $1.75

<u>Step-by-step explanation:</u>

Given A store is having a sale on jelly beans and trail mix. For 3 pounds of jelly beans and 2 pounds of trail mix, the total cost is $11. For 5 pounds of jelly beans and 6 pounds of trail mix, the total cost is $23 . We have to find the cost for each pound of trail mix and each pound of jelly beans.

Let the cost of each pound of trail mix is $y.

and  the cost of each pound of jelly beans is $x.

According to question,

For   3 pounds of jelly beans and 2 pounds of trail mix, the total cost is $11.

⇒ 3x+2y=11  →  (1)

For 5 pounds of jelly beans and 6 pounds of trail mix, the total cost is $23

⇒ 5x+6y=23 →  (2)

Solving (1) and (2), we get

3(1 equation)-(2 equation)=0

⇒3(3x+2y)-5x-6y=3(11)-23

⇒9x+6y-5x-6y=10

hence,

⇒4x=10

⇒x=2.5

Putting x=2.5 in  3x+2y=11  we get ;

⇒  3x+2y=11

⇒  3(2.5)+2y=11

⇒  2y=11-7.5=3.5

⇒  y=1.75

Hence, the cost for each of jelly beans and each pound of trail mix is $2.5 and $1.75 .

6 0
3 years ago
How many millilitres are there in 51%
o-na [289]

Answer: 51 oz is equal to 1,508.27 ml, or there are 1,508.27 milliliters in 51 ounces.

HOPE THIS HELPS

4 0
3 years ago
Sally is selling strawberries at the farmer’s market. She sells 5 boxes in the morning, and then sells half of the remaining box
Vilka [71]

Answer:

23 boxes

Step-by-step explanation:

x=5+9*2

5 0
3 years ago
Read 2 more answers
When x=8 y=20. What is y when x=42?
Sergeu [11.5K]
If you would like to know what is y when x = 42, you can calculate this using the following steps:

x = 8 ... y = 20
x = 42 ... y = ? 

8 * y = 20 * 42      /8
y = 20 * 42 / 8
y = 105

The correct result would be: y = 105 when x = 42.
3 0
3 years ago
Read 2 more answers
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