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2 years ago

Can anybody please help me

Mathematics

1 answer:

NARA [144]2 years ago

3 0

Answer:

Step-by-step explanation:

Tessellations have no overlap (not A), no gaps (not B), and are periodical(not D)

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The cafeteria surveyed 50 sixth grade students about their

liubo4ka [24]

Can you attach the image of the table ?

6 0

3 years ago

A glass is 4/7 full. Then 70 cm³ orange juice is poured in. The glass is now 3/4 full.

Nataly_w [17]

Answer:

The volume of the glass is 217.8 cm³

Step-by-step explanation:

If the glass were initially 4/7 full, that means 3/7 of the volume is still available to hold more juice.

Let v represent the volume of the glass.

Then (3/7)v + 70 cm³ = (3/4)v.

We need to solve this for v.

Here the LCD is 28. Thus,

(3/7)v + 70 cm³ = (3/4)v → (12/28)v + 70 cm³ = (21/28)v.

Subtracting (12/28)v from both sides, we get:

70 cm³ = (9/28)v.

We can isolate v by mult. both sides by the inverse of 9/28, which is 28/9:

(28/9)(70 cm³) = v

The volume of the glass is 217.8 cm³

3 0

3 years ago

Read 2 more answers

The area of the curved surface of a cylinder is 6160cm. The height of the cylinder is 10cm. What is the radius of the cylinder i

valina [46]

Answer:

r = 98 cm

Step-by-step explanation:

Formula for curved surface area = $2\pi rh$

where r = radius & h = height

Let the radius be 'r'.

According to the question ,

$6160 = 2 \times \pi \times r \times 10$

$= > 20\pi r = 6160$

$= > r = \frac{6160}{20\pi} = \frac{6160 \times 7}{20 \times 22} = 98cm$

3 0

3 years ago

One-fourth of the cars that an automobile manufacturer produces are sports cars, and the rest are sedans. If one-fifth of the ca

Mashcka [7]

Answer:

Step-by-step explanation:

Let's base this on 100%, or 100 cars, which is 100% of the cars. If 1/4 of the 100 cars are sports cars, then we have

25 sports cars and

75 sedans

If 1/5 of the total cars are red, 20 of the 100 cars are red (since 1/5 is 20).

If 1/3 of the sports cars, of which we have 25, are red, then 25/3 of the sports cars are red.

Since we have 20 total red cars and 25/3 of them are sports cars, then the rest of them must be red sedans:

Total red cars - red sports cars = red sedans

$20-(\frac{1}{3}*25)$ which simplifies to

$20-\frac{25}{3}=\frac{60}{3}-\frac{25}{3}=\frac{35}{3}$

7 0

3 years ago

A cross-country team had a total of 10 practices last week, with each practice being in the morning or the afternoon. During eac

GalinKa [24]

x= morning

y = afternoon

x + y = 10

x=10-y

5x + 6y =57

5(10-y) +6y =57

50-5y +6y =57

y=7

x=10-7 =3

check 3*5 = 15, 7*6 = 42, 42 + 15 = 57

3 morning practices

3 0

3 years ago

Can anybody please help me​

Can anybody please help me