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Artyom0805 [142]
3 years ago
9

I BEG FOR HELP :(

Mathematics
1 answer:
Citrus2011 [14]3 years ago
5 0

Answer:

(3, 2)

Step-by-step explanation:

I will solve using the elimination method

 x + y = 5

- (x - y = 1)

---------------

       2y = 4

          y = 2

plug y = 2 into any equation and solve for x

x + 2 = 5

x = 3

(3, 2)

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A farmer sells 8.8 kilograms of apples and pears at the farmer's market. 1 4 of this weight is apples, and the rest is pears. Ho
Olenka [21]

Answer: She sold 6.6kg of pears in the market.

Step-by-step explanation:

 Weight of apples and pears at the farmer's market.=8.8 kilograms

Weight of apples = 1/4

which is = 1/4 x 8.8kg = 2.2 kg

Weight of Pears =Weight of apples and pears - Weight of apples

= 8.8kg- 2.2kg

= 6.6kg

5 0
3 years ago
PV=nRT for t. PLEASE I DONT UNDERSTAND!
I am Lyosha [343]

Answer:

T= PV/NR

Step-by-step explanation:

PLS MY BRAIN HURTS LIKE AND 5 STAR

7 0
3 years ago
The marching band sold gift wrap priced at $4.00 per roll for solid colors and $6.00 per roll for print patterns. If they sold 4
Alex Ar [27]

Answer:

The number of gift wrap rolls for solid colors sold was 270 and the number of gift wrap rolls for sprint patterns sold was 210

Step-by-step explanation:

Let

x ---> the number of gift wrap rolls for solid colors sold

y ---> the number of gift wrap rolls for sprint patterns sold

we know that

x+y=480 ---->x=480-y ----> equation A

4x+6y=2,340 ----> equation B

Solve the system by substitution

substitute equation A in equation B

4(480-y)+6y=2,340

solve for y

1,920-4y+6y=2,340

-4y+6y=2,340-1,920

2y=420

y=210

<em>Find the value of x</em>

x=480-y ----> x=480-210=270

therefore

The number of gift wrap rolls for solid colors sold was 270 and the number of gift wrap rolls for sprint patterns sold was 210

8 0
3 years ago
Cancel help me with these two problems
Alex_Xolod [135]
4. To solve this problem, we must simply subtract the volume of the smaller box from the volume of the larger box. The formula for volume of a rectangular prism is length * width * height. So we know that the bigger box has a height of 20 inches, a length of 15 inches, and a height of 9 inches. We can multiply these together to get the volume.

20 * 15 = 300

300 * 9 = 2700

The bigger box has a volume of 2,700 cubic inches.

Now for the smaller box. This box has a length of 12 inches, a width of 8 inches, and a height of 4 inches. Let us multiply this together:

12 * 8 = 96

96 * 4 = 384

The smaller box has a volume of 384 cubic inches.

Now, we just need to subtract.

2700 - 384 = 2316

There are 2,316 cubic inches of space left in Jeff's bigger box.

5. Mrs. Nelson has plans for a flower box that has two constant side lengths, the length and height (5 feet and 2 feet). The width can be any whole number (counting number) only up to 5 feet, so there are 5 different volumes she could have. Those are:

5 * 2 * 1 = 10 cubic feet

5 * 2 * 2 = 20 cubic feet

5 * 2 * 3 = 30 cubic feet

5 * 2 * 4 = 40 cubic feet

and

5 * 2 * 5 = 50 cubic feet

The possible volumes for Mrs. Nelson's flower box are 10, 20, 30, 40, and 50 cubic feet.

So there you have it!
Hope that helped! =)
3 0
3 years ago
3 + x = 4 is the same as 4 = 3 + x. This is an example of which algebraic property? a.
algol [13]
D. Symmetric Property. If you flip it the = sign will be on the end
5 0
3 years ago
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