All categories

3 years ago

Solve the following equation 3x+7=10

Mathematics

2 answers:

serious [3.7K]3 years ago

8 0

Answer: x=1

Step-by-step explanation:

lianna [129]3 years ago

5 0

Answer:

x = 1

Step-by-step explanation:

Subtract 7 from both sides

3x = 3

Divide both sides by 3 

x = 1

hope this helps...

You might be interested in

The first barn contained 3 times more hay than the second one. After 20 tons of hay were removed from the first barn and 20 tons

pentagon [3]

Answer:

Amount of hay in first barn = 90 tons

Amount of hay in second barn song = 30 tons

Step-by-step explanation:

Let the amount of hay in second barn be x, then hay in first barn will be 3x.

20 tons of hay was removed from first barn and ws added to second barn.

Now, the amount of hay in first barn = 3x -20

Amount of hay in second barn = x+20

The equation now formed is:

x+20 = $\frac{5}{7}$ (3x-20)

7x+14 = 15x -100

-8x = -240

8x = 240

x = 30

3x = 90

Amount of hay in first barn = 90 tons

Amount of hay in second barn song = 30 tons

6 0

4 years ago

The width of a rectangle is only 15% of its length. If the perimeter of the rectangle is 46, what is the length

sveta [45]

Answer:

20 units

Step-by-step explanation:

Let the length be x. According to the question,

Length = x
Width = 15% of the length

➝ Width = 15% of the length

➝ Width = 15/100x

➝ Width = 3/20x

We have the perimeter of the rectangle that is 46 units.

$\longrightarrow \sf {Perimeter_{(Rec.)} = 2(L + W) } \\$

$\longrightarrow \sf {46= 2\Bigg \lgroup x + \dfrac{3}{20}x \Bigg \rgroup } \\$

$\longrightarrow \sf {46= 2\Bigg \lgroup \dfrac{20x + 3x}{20} \Bigg \rgroup } \\$

$\longrightarrow \sf {46= 2\Bigg \lgroup \dfrac{23x}{20} \Bigg \rgroup } \\$

$\longrightarrow \sf {\dfrac{46}{2}= \dfrac{23x}{20}} \\$

$\longrightarrow \sf {23= \dfrac{23x}{20}} \\$

$\longrightarrow \sf {23 \times 20 = 23x} \\$

$\longrightarrow \sf {460= 23x} \\$

$\longrightarrow \sf {\cancel{\dfrac{460}{23}} = x} \\$

$\longrightarrow \underline{\boxed{ \bf {20\; units = x}}} \\$

Therefore, length of the rectangle is 20 units.

5 0

4 years ago

Dylan has 128 prices of candy from Halloween . he eats half of his candy each week.

Scilla [17]

Answer:

55.5 left over.

Step-by-step explanation:

128/2 = 64

half each week so;

1 whole = two weeks

8 weeks = 8

+ 1 = 8 1/2

so, 64/8.5

is going to be 55.5 left.

5 0

3 years ago

What is the answer? (Number 8)

barxatty [35]

A mode is the most often occurring number, so the answer is 14

8 0

3 years ago

Read 2 more answers

a list contains the names of five anthropology students, three sociology students and four psychology students. If one name is s

Monica [59]

There is a 25% chance that the student will be sociology

4 0

2 years ago