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3 years ago

Using the expression 7x = 3y is 35, what is x?

Mathematics

1 answer:

Romashka-Z-Leto [24]3 years ago

8 0

7x = 3y

y = 35

plug in 35 for y

7x = 3(35)

simplify, multiply 3 and 35 together

3(35) = 105

7x = 105

isolate the x, divide 7 from both sides

7x/7 = 105/7

x = 15

15, A is your answer

For #2:

Bruce has 97 sports card. 34 are football cards. Find y, which are the amount of sports cards not foot ball cards

34 + y = 97

34 (-34) + y = 97 (-34)

y = 97 - 34

y = 63

hope this helps

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In a scale drawing, a building has a length of 15 cm. The actual length of the building is 37.5 feet. Whats the scale of the dra

Feliz [49]

Answer:

$\frac{15}{37.5}\ \frac{cm}{ft}$

$1.31:100$

Step-by-step explanation:

we know that

The scale of the drawing is equal to divide the length of a building in the scale drawing by the actual length of a building

$\frac{15}{37.5}\ \frac{cm}{ft}$

That means

15 cm in the drawing represent 37.5 ft in the actual

Remember that

$1\ ft=30.48\ cm$

Convert 15 cm to ft

divide by 30.48

$15\ cm=15/30.48\ ft$

substitute

$\frac{15}{37.5}\ \frac{cm}{ft}=\frac{(15/30.48)}{37.5}=\frac{0.0131}{1}$

$1.31:100$

That means

1.31 units in the drawing represent 100 units in the actual

5 0

3 years ago

How to do this question plz

sergeinik [125]

Answer:

The answer is yes.

Step-by-step explanation:

All you have to do is substitute the y, which is 5, and the x, which is 2, into the equation. When you solve it the answer in the end will be 5=5, which means that point (2,5) does line on that line.

3 0

4 years ago

Find the value of x in the triangle shown below. a. x=80 b. x=48 c. x= 32 d. x=12

yulyashka [42]

THEOREM:

• Pythagorean theorem:— In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides.

ANSWER:

By pythagorean property,

x² = 4² + 8²

x² = 16 + 64

x² = 80

x = √80 units.

So, Correct choice - [A] √80 units.

8 0

3 years ago

Read 2 more answers

Mrs. Jones bought 6 kilograms of rice. After filling 10 containers with the same

9966 [12]

There are 514 gram rice in each container.

Step-by-step explanation:

Given,

Amount of rice = 6 kg

1 kg = 1000 g

6 kg = 6*1000 = 6000 g

Number of containers = 10

Rice left = 860 g

Let,

x be the amount in each container.

Total amount of rice - Number of containers*Amount in each container = Amount of rice left

$6000-10x=860\\6000-860=10x\\5140=10x\\10x=5140$

Dividing both sides by 10

$\frac{10x}{10}=\frac{5140}{10}\\x=514$

There are 514 gram rice in each container.

Keywords: linear equation, division

Learn more about division at:

#LearnwithBrainly

8 0

3 years ago

How can you check the reasonableness of your solution

storchak [24]

You would basically go back and trace all your steps, that's what I do. And if your answer seems reasonable then you have the right answer but if your work doesn't match the answer than you've messed up. I hope I helped if I did like my answer and comment down below thx

6 0

4 years ago