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2 years ago

Will someone help please? only with 1-8

Mathematics

2 answers:

BlackZzzverrR [31]2 years ago

7 0

Answer:

1. x+2=2x+1 5. 8+x=3x

2-1=2x-x 8 =3x-x

1=x or x=1 8=2x

x=4

2. 2x+7=3x+4 6. 3x+6=6x

2x-3x=4-7 3x-6x=-6

-x=-3 -3x=-6

x=3 x=2

3. 2x-5=x-7. 7. 3x+3=x-5

2x-x= -7+5 3x-x= -5-3

x= -2 2x=-8

x=-4

4. x+6=3x-2 8. 2x+5=4x-1

x-3x= -2-6 2x-4x= -1-5

-2x=-8 -2x= -6

x=4 x=3

makvit [3.9K]2 years ago

5 0

1. x=1
2. x=3
3. x= -2
4. x = 4
5. x=4
6.x=2
7.x=-4
8.x=3

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A. A 5in radius ball is in a

abruzzese [7]

Answer:

52.33%

Step-by-step explanation:

Since, all six sides of the box are touching the ball.

So, all the three dimensions of the box are equal.

Hence, it is a cubical box.

Side length of the box (l)

= diameter of the ball

= 2*radius of the ball

= 2*5

= 10 In.

$V_{ball} = \frac{4}{3} \pi r^3$

$V_{ball} = \frac{4}{3} \times 3.14(5)^3$

$V_{ball} = \frac{4}{3} \times 3.14\times 125$

$V_{ball} = \frac{1,570}{3}\: In^3$

$V_{box} =l^3$

$V_{box} =(10)^3$

$V_{box} =1000\: In^3$

Percentage of the space in the box occupied by the ball

$= \frac{V_{ball}}{V_{box} } \times 100$

$= \frac{\frac{1,570}{3}}{1000} \times 100$

$= \frac{1570}{3000} \times 100$

$= \frac{157}{3}$

$= 52.33\%$

5 0

2 years ago

Helena needs 3.5 cups of flour per loaf of bread and 2.5 cups of flour per batch of muffins. She also needs 0.75 cup of sugar pe

vesna_86 [32]

Let
x = loaves of bread
y = batches of muffins
You must make a system of two equations with two unknowns that describe the problem
3.5x + 2.5y = 17 --- (1)
0.75x + 0.75y = 4.5 --- (2)
Resolving we have
x = 6-y (from (2))
replacing in (1)
3.5 (6-y) + 2.5y = 17
21 - 3.5y + 2.5y = 17
y = 21-17 = 4
Then substituting in (2)
x = 6-y = 6-4 = 2
Answer
Helena could bake:
2 loaves of bread
4 batches of muffins

8 0

3 years ago

I really need help please

Ahat [919]

Answer:

the first one and the fith one

Step-by-step explanation:

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2 years ago

Read 2 more answers

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Lilit [14]

Answer:

its 10x the value.

Step-by-step explanation:

20000 x 10 = 220000

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3 years ago

4/5 to 3/5 as a tenth of a percent

Rudik [331]

12/25 that will be the answer so its the percent time always helps.

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2 years ago

Will someone help please? only with 1-8​

Will someone help please? only with 1-8